Title of Invention

"AN ENCLOSURE OF AN ELECTRONIC APPARATUS AND AN ELECTRONIC APPARATUS"

Abstract The invention relates to an enclosure (52) of an electronic apparatus (50) comprising a first enclosure portion (54; 103; 110) adapted to house electronic circuitry (58) therein and mating with a second enclosure portion (56,57;104;112) to form an interface joint (59,60;105;118), said first and second enclosure portions being at least substantially co-planar proximate said interface joint and including a plurality of mating crenellations (62,63;106,108;114,116)/ in order to reduce electromagnetic interference radiation (101,102) to or from said enclosure when said first and second enclosure portions are mated together,said first enclosure portion being a housing including an opening (70,72) and an edge (74,76) with a first set of said mating crenellations (62) at said opening and the second enclosure portion being a plate having a periphery (78,80) with a second set of mating crenellations (63) within said opening, said first and second sets of said mating crenellations being co-planar and mating to define said interface joint.
Full Text

ELECTRONIC APPARATUS AND ENCLOSURE EMPLOYING
SUBSTANTIALLY CO-PLANAR PORTIONS
WITH MATING CRENELLATIONS
BACKGROUND OF THE INVENTION
Field of the Invention
The invention relates to enclosures for electronic apparatus and, more
particularly, to such enclosures that reduce electromagnetic interference emissions to
and/or from the enclosures. The invention also relates to electronic apparatus
employing enclosures that reduce electromagnetic interference emissions thereto
and/or therefrom.
Background Information
The operation of electronic apparatus (e.g., without limitation,
electronic equipment; electronic devices; televisions; radios; computers; medical and
other electronic instruments; business machines; communications devices; control
and/or monitoring devices) is attended by the generation of electromagnetic radiation
within the electronic circuitry of the apparatus. Such radiation often develops as a
field or as transients within the radio frequency band of the electromagnetic spectrum
(e.g., between about 10 KHz and 10 GHz), and is termed "electromagnetic
interference" (EMI), which is known to interfere with the operation of other
proximate electronic devices. See, for example, U.S. Patent Nos. 5,202,536;
5,142,101; 5,105,056; and 4,857,668.
Digital and/or processor-based electronic devices produce
electromagnetic fields at harmonics of the clock frequency and also at frequencies
related to the rise and fall times of logic signals. The most straightforward controls
for EMI involve the use of multi-layer printed circuit boards and ground planes.
Nevertheless, emissions can easily exceed regulatory requirements.
The last line of defense is the electronic enclosure. To reduce
electromagnetic emissions, the typical electronic enclosure is made of conductive
materials, such as aluminum or steel. Even then, any openings or seams may act as
slot antennas. These slots pass EMI at frequencies having wavelengths less than eight
times the size of the slot. To attenuate EMI effects, shielding having the capability of
absorbing and/or reflecting EMI energy may be employed both to confine the EMI

energy within a source device, and to insulate that device or other "target" devices
from other source devices. Such shielding is provided as a barrier, which is inserted
between the source and the other devices, and typically is configured as an electrically
conductive and grounded housing to enclose the device.
As the circuitry of the electronic device generally must remain
accessible for servicing or the like, most housings are provided with openable or
removable accesses, such as doors, hatches, panels or covers. Between even the
flattest of these accesses and its corresponding mating or faying surface, however,
there may be present gaps, which reduce the efficiency of the shielding by presenting
openings through which radiant energy may leak or otherwise pass into or out of the
device. Moreover, such gaps represent discontinuities in the surface and ground
conductivity of the housing or other shielding, and may even generate a secondary
source of EMI radiation by functioning as a form of slot antenna. In this regard, bulk
or surface currents induced within the housing develop voltage gradients across any
interface gaps in the shielding, which gaps thereby function as antennas and radiate
EMI noise. In general, the amplitude of the noise is proportional to the gap length,
with the width of the gap having a relatively smaller effect.
To address EMI, EMI shielding products attempt to prevent undesired
electromagnetic energy and radio frequency interference (RFI) from disrupting, or
radiating from, electronic devices. Such products include, for example, wire mesh O-
rings; fabric-over-foam profile gaskets; shielding tapes; fabric-over-foam I/O gaskets;
cable shielding; EMI shielding glass; shielding laminates; selectively coated, custom
formable shields; beryllium copper spring-finger gasketing; and silver coated nylon
gasketing. Nevertheless, such products are expensive.
One example of an electronic device is the personal computer (PC). In
order to attenuate electromagnetic signals, the typical PC case includes steel plates
and shields; nevertheless, there are emissions through the seams and through openings
created for add-on cards. In some applications, electromagnetic gasket material
attempts to attenuate non-complaint signals at the seams and the openings. The more
overlap provided by the gasket material at a seam or opening, the better the
attenuation. However, the cost of the gasket material and related assembly is
relatively expensive.

In a microwave oven, for example, the wavelengths of signals are
relatively very short. Hence, such microwave ovens employ electromagnetic gaskets
for relatively long seams and an array of relatively small holes in a conductive panel
for the window.
For filling gaps within mating surfaces of housings and other EMI
shielding structures, gaskets and other seals have been proposed for maintaining
electrical continuity across the structure. Such seals are bonded or mechanically
attached to, or press-fit into, one of the mating surfaces, and close any interface gaps,
in order to establish a continuous electrically conductive path thereacross by
conforming under an applied pressure to irregularities between the surfaces.
EMI shielding gaskets, for example, are used in electronic equipment
to provide protection against interference from electromagnetic energy, including RFI
and more broadly all bands of EMI. The shielding has an electrically conductive
element, be it a wire mesh, conductive filler or conductive plating, coating or fabric,
which prevents external EMI from interfering with an electronic device and/or
protects other adjacent electronic devices from EMI emitted by an electronic device.
The Background of the Invention section of U.S. Patent No. 6,521,828
discloses a form-in-place (FTP) process for the manufacture of EMI shielding gaskets.
One method of achieving a lower closure force gasket design has been to form the
gasket as having a periodic "interrupted" pattern of alternating local maxima and
minima heights. Gaskets of such type may be formed by molding or the FIP process
as having a crenellated, i.e., notched, serrated or a sinusoidal "waveform" profile, or
as a series of discrete beads. In general, for a specified joint configuration, a gasket
having such an "interrupted" profile or pattern would be expected to exhibit a greater
deflection under a given compressive load than a continuous profile.
U.S. Patent No. 5,259,792 discloses an electrical connector housing for
a flat ribbon-type electrical transmission cable and method for minimizing EMI
emissions. The connector housing has a top half and a bottom half, which are fitted
together with an interlock joint, in order to minimize the emission of EMI through the
joint. The interlock is provided by a number of interrupt elements that provide
discontinuity along the otherwise continuous line joint to minimize the emissions of
interference signals. Preferably, the interlock along the interface between the top and

bottom connector housing halves is provided by serrations in the form of triangular
teeth that fit together. The teeth interlock, in order that there is insufficient space to
allow for the transmission of EMI at frequencies at least up to six gigahertz.
However, the interrupt may be provided in the form of other elements as long as there
is no space having a linear dimension greater than 1/8 of the EMI wavelength. The
plastic housing halves are plated with a metal plating shield, such as a copper-nickel
alloy, to provide shielding. Also, RFI shielding strips are affixed to each housing
half, in order that when the housing halves are clamped together the shielding strips
will make positive electrical contact with a cable foil metal shield.
Military contractors have used many techniques to attenuate and
deflect radar signals. For example, the goal of stealth technology is to make an
aircraft invisible to radar. The stealth aircraft is shaped, in order that any incident
radar signals are reflected away from the radar source and/or the aircraft is covered in
materials that absorb radar signals. For example, the stealth aircraft may be made up
of completely flat surfaces and relatively very sharp edges. When a radar signal hits a
stealth aircraft, the signal reflects away at an angle. In contrast, most conventional
aircraft have a rounded shape, which creates a very efficient radar reflector, thereby
reflecting some of the signal back to the source.
There is room for improvement in electronic apparatus and enclosures
therefor.
SUMMARY OF THE INVENTION
These needs and others are met by the present invention, which
employs first and second enclosure portions to form an interface joint. The first and
second enclosure portions are at least substantially co-planar proximate the interface
joint and include a plurality of mating crenellations. This limits the size of enclosure
slots at the interface joint in any particular direction.
As one aspect of the invention, an electronic apparatus comprises: an
enclosure including a first enclosure portion and a second enclosure portion; and
electronic circuitry within the enclosure, the second enclosure portion mating with the
first enclosure portion and forming an interface joint, the first and second enclosure
portions being at least substantially co-planar proximate the interface joint and including a plurality of mating crenellations, in order to reduce electromagnetic

interference radiation to or from the enclosure when the first and second enclosure
portions are mated together.
The mating crenellations may be a series of mating serrations
extending along the interface joint. The first and second enclosure portions may
include co-planar mating portions, which form the interface joint. The mating
crenellations may be a series of mating serrated teeth extending along the interface
joint.
The first enclosure portion may be a housing including an opening and
an edge with a first set of the mating crenellations defining the opening. The second
enclosure portion may be a plate having a periphery with a second set of the mating
crenellations within the opening. The first and second sets of the mating crenellations
may mate and define the interface joint.
As another aspect of the invention, an electronic apparatus enclosure
comprises: a first enclosure portion adapted to house electronic circuitry therein; and a
second enclosure portion mating with the first enclosure portion and forming an
interface joint, the first and second enclosure portions being at least substantially co-
planar proximate the interface joint and including a plurality of mating crenellations,
in order to reduce electromagnetic interference radiation to or from the enclosure
when the first and second enclosure portions are mated together.
The first enclosure portion may be a housing including an opening and
an edge with a first set of the mating crenellations at the opening. The second
enclosure portion may be a plate having a periphery with a second set of the mating
crenellations within the opening. The first and second sets of the mating crenellations
may be co-planar and mate to define the interface joint.
BRIEF DESCRIPTION OF THE DRAWINGS
A full understanding of the invention can be gained from the following
description of the preferred embodiments when read in conjunction with the
accompanying drawings in which:
Figure 1 is a simplified isometric view of an enclosure for electronic
equipment.
Figure 2 is an isometric view of an enclosure for a meter in accordance
with an embodiment of the present invention.

. Figure 3 is a plan view of two mating enclosure portions employing
crenellations as an interface joint in accordance with another embodiment of the
invention.
Figure 4 is a plan view of two mating enclosure portions employing
embrasures as an interface joint in accordance with another embodiment of the
invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Figure 1 shows an electronic device 2 including a housing 4 and
electronic circuitry 6 (shown in hidden line drawing) therein. The housing 4 includes
a generally five-sided enclosure 8 and two front plates 10,12 having a plurality of
connectors 14,16, respectively. The front plates 10,12 mate with the enclosure 8 at
two openings 18,20, respectively, thereof. The front plates 10,12 and respective
openings 18,20 form eight slotted joints 22,24,26,28,30,32,34,36. The front surface
38 of the housing 4, including the front plates 10,12 and the front surface 40 of the
enclosure 8 is generally planar. The front plates 10,12 are secured to the enclosure 8
by suitable fasteners 42.
Referring to Figure 2, an electronic apparatus 50 includes an enclosure
52 having a first enclosure portion 54 and two second enclosure portions 56,57, and
electronic circuitry 58 (e.g., meter circuitry) (shown in hidden line drawing) within
the enclosure 52. The second enclosure portions 56,57 mate with the first enclosure
portion 54 and form two interface joints 59,60, respectively. The first and second
enclosure portions 54,56,57 are at least substantially co-planar proximate the interface
joints 59,60 and include a plurality of mating crenellations 62,63 (as shown with the
portion 56), in order to reduce electromagnetic interference radiation to or from the
enclosure 52 when the first and second enclosure portions 54,56,57 are mated
together. The mating crenellations 62,63 are a series of mating serrations 64,65 (e.g.,
mating serrated teeth) extending along the interface joints 59,60. The first and second
enclosure portions 54,56,57 include co-planar mating portions 66,67,68, which form
the interface joints 59,60.
As shown in Figure 2, rather than the relatively long slotted openings
18,20 of Figure 1, the interface joints 59,60 employ a series of the mating serrations
64,65. In this manner, only EMI at frequencies having wavelengths less than eight

times the size of each of the mating serrations 64,65 can pass therethrough without
being filtered.
Examples of the meter circuitry 58 are disclosed, for example, in U.S.
Patent Nos. 5,890,097; 5,754,440; 5,706,204; and 5,661,658, which are incorporated
herein by reference. Although example meter circuitry 58 is disclosed, the invention is
applicable to any suitable electronic circuitry within the enclosure 52.
In this example, the first enclosure portion 54 is a generally five-sided
housing including two openings 70,72 having edges 74,76 with the mating
crenellations 62. The second enclosure portions 56,57 are front plates having
peripheries 78,80 with the mating crenellations 63 within the openings 70,72. The
mating crenellations 62,63 of the co-planar mating portions 66,67,68 are co-planar
and mate to define the interface joints 59,60.
Although two openings 70,72, two front plates 56,57 and two interface
joints 59,60 are shown, the invention is applicable to enclosures including a single
interface joint having one or more longitudinal edges with mating crenellations.
Although front plates 56,57 are shown, the invention is applicable to one or more
interface joints disposed on any side(s) of an enclosure.
One or more connectors are operatively associated with the meter
circuitry 58 on one or both of the front plates 56,57. For example, the meter circuitry
58 may include one or more printed circuit boards (not shown) electrically and
mechanically interfacing the connectors. Examples of such connectors include an
input connector 82, an output connector 84, an input/output connector 86, an RS-485
connector 88, a serial port connector 90, an Ethernet connector 92, a telephone
connector 94, a power supply connector 96, a terminal block 98 and a USB port
connector 100.
Any inputs and/or outputs (e.g., connections
82,84,86,88,90,92,94,96,98,100), if employed, preferably include shielded cables and
shielded connectors, especially if the corresponding inputs and/or outputs do not have
a suitably high impedance.
The electromagnetic interference radiation 101 internal to the
enclosure 52 and the electromagnetic interference radiation 102 external to the
enclosure 52 have frequencies and corresponding wavelengths. The mating

crenellations 62,63 define miniature slots along the interface joints 59,60. The length
of those slots is less than a predetermined fraction {e.g., 1/8) of the wavelength. For
example, from the well known equation λ= c/f, wherein λ is wavelength, c is the
speed of light (= 3.0 x 108 m/s x 39.37 in./m) in a vacuum and f is frequency, if the
slot length is desired to be less than 1/8 of the wavelength of a selected frequency,
such as 6 GHz, then the maximum slot length (i.e., the maximum length of any of the
individual serrated edges of the interface joints 59,60) would be about 0.25 in. If the
length of the slots is 1/8 of a selected wavelength {e.g., λ), then relatively smaller
wavelengths {i.e., 2λ) greater than twice the
selected wavelength are filtered, and intermediate wavelengths {i.e., between λ and
2λ) are somewhat filtered.
Although serrated edges of the interface joints 59,60 are shown in
Figure 2, a wide range of other suitable crenellated edges may be employed. For
example, the interface joints may employ notches (Figure 3) or embrasures (Figure 4).
Such crenellated edges may be formed by any suitable process, such as, for example,
stamping or routing.
As shown in Figure 3, two mating enclosure portions 103,104 form, in
the manner of a battlement, an interface joint 105 including alternating openings, such
as notched recesses or embrasures 106, and raised sections, such as notched
projections or merlons 108, extending along that interface joint. These mating
crenellations form an irregular square wave pattern. Although a somewhat irregular
pattern of embrasures 106 and merlons 108 is shown, such a pattern may be irregular
or regular {e.g., a notched or square wave pattern having, for example, a 50% or other
suitable duty cycle). Here, the mating enclosure portions 103,104 are preferably co-
planar.
Referring to Figure 4, two mating enclosure portions 110,112 employ
mating embrasures 114,116 to define an interface joint 118.
The electronic equipment enclosure 52 of Figure 2 employs an
improved structure, which replaces a conventional slotted opening with an interface
joint, such as 59 or 60, having a plurality of mating crenellations 62,63, in order to
reduce emissions of interference radiation 101,102 to or from the enclosure 52. These
mating crenellations 62,63 directly limit the size of the enclosure slots in any

particular direction. The disclosed mating crenellations 62,63, 106,108, 114,116 and
124,126 minimize emissions of electromagnetic interference radiation to or from an
enclosure, such as 52.
While specific embodiments of the invention have been described in
detail, it will be appreciated by those skilled in the art that various modifications and
. alternatives to those details could be developed in light of the overall teachings of the
disclosure. Accordingly, the particular arrangements disclosed are meant to be
illustrative only and not limiting as to the scope of the invention which is to be given
the full breadth of the claims appended and any and all equivalents thereof.

REFERENCE CHARACTER LIST
2 electronic device
4 housing
6 electronic circuitry
8 generally five-sided enclosure
10 front plate
12 front plate
14 connectors
16 connectors
18 opening
20 opening
22 slotted joint
24 slotted joint
26 slotted joint
28 slotted joint
30 slotted joint
32 slotted joint
34 slotted joint
36 slotted joint
38 front surface
40 front surface
42 fasteners
50 electronic apparatus
52 enclosure
54 first enclosure portion
56 second enclosure portion
57 second enclosure portion
5 8 electronic circuitry
59 interface joint
60 interface joint

62 mating crenellations
63 mating crenellations
64 mating serrations
65 mating serrations
66 co-planar mating portion
67 co-planar mating portion
68 co-planar mating portion
70 opening
72 opening
74 edge
76 edge
78 periphery
80 periphery
82 input connector
84 output connector
86 input/output connector
88 RS-485 connector

REFERENCE CHARACTER LIST
2 electronic device
4 housing
6 electronic circuitry
8 generally five-sided enclosure
10 front plate
12 front plate
14 connectors
16 connectors
18 opening
20 opening
22 slotted joint
24 slotted joint
26 slotted joint
28 slotted joint
30 slotted joint
32 slotted joint
34 slotted joint
36 slotted joint
38 front surface
40 front surface
42 fasteners
50 electronic apparatus
52 enclosure
54 first enclosure portion
56 second enclosure portion
57 second enclosure portion
58 electronic circuitry
59 interface joint
60 interface joint

62 mating crenellations
63 mating crenellations
64 mating serrations
65 mating serrations
66 co-planar mating portion
67 co-planar mating portion
68 co-planar mating portion
70 opening
72 opening
74 edge
76 edge
78 periphery
80 periphery
82 input connector
84 output connector
86 input/output connector
88 RS-485 connector

We Claim:
1. An enclosure (52) of an electronic apparatus (50) comprising:
a first enclosure portion (54;103;110) adapted to house electronic circuitry
(58) therein and mating with a second enclosure portion (56,57; 104; 112) to
form an interface joint (59,60; 105; 118), said first and second enclosure
portions being at least substantially co-planar proximate said interface joint
and including a plurality of mating crehellations (62,63;106,108;114,116), in
order to reduce electromagnetic interference radiation (101,102) to or from
said enclosure when said first and second enclosure portions are mated
together,
said first enclosure portion being a housing including an opening (70,72) and
an edge (74,76) with a first set of said mating crenellations (62) at said
opening and the second enclosure portion being a plate having a periphery
(78,80) with a second set of mating crenellations (63) within said opening,
said first and second sets of said mating crenellations being co-planar and
mating to define said interface joint.

2. An electronic apparatus (50) comprising:
an enclosure (52) having a first enclosure portion (54;103;110) housing
therein electronic circuitry (58) and mating with a second enclosure portion
(56,57; 104; 112) to form an interface joint (59,60; 105; 118) , said first and
second enclosure portions being at least substantially co-planar proximate
said interface joint and including a plurality of mating crenellations (62,63), in
order to reduce electromagnetic interference radiation to or from said
enclosure when said first and second enclosure portions are mated together,
said first enclosure portion being a housing including an opening (70,72) and
an edge (74,76) with a first set of said mating crenellations (62) at said
opening and the second enclosure portion being a plate having a periphery
(78,80) with a second set of mating crenellations (63) within said opening,
said first and second sets of said mating crenellations being co-planar and
mating to define said interface joint.
3. An electronic apparatus as claimed in claim 2, wherein at least one
connector operatively associated with the electronic circuitry (58) is
disposed on the plate.

4. An electronic apparatus as claimed in claim 3, wherein the at least one
connector is an input connector (82), an output connector (84), an
input/output connector (86), and RS-485 connector (88), a serial port
connector (90), an Ethernet connector (92), a telephone connector (94), a
power supply connector (96), a terminal block (98) and a USB connector
(100).
5. An enclosure for an electronic apparatus and substantially as described
herein with particular reference to Figure 2 or Figure 3 or Figure 4 of the
accompanying drawings.
The invention relates to an enclosure (52) of an electronic apparatus (50)
comprising a first enclosure portion (54; 103; 110) adapted to house electronic
circuitry (58) therein and mating with a second enclosure portion
(56,57;104;112) to form an interface joint (59,60;105;118), said first and second
enclosure portions being at least substantially co-planar proximate said interface
joint and including a plurality of mating crenellations (62,63;106,108;114,116)/ in
order to reduce electromagnetic interference radiation (101,102) to or from said
enclosure when said first and second enclosure portions are mated together,said
first enclosure portion being a housing including an opening (70,72) and an edge
(74,76) with a first set of said mating crenellations (62) at said opening and the
second enclosure portion being a plate having a periphery (78,80) with a second
set of mating crenellations (63) within said opening, said first and second sets of
said mating crenellations being co-planar and mating to define said interface
joint.

Documents:

01507-kolnp-2006-abstract.pdf

01507-kolnp-2006-asignment.pdf

01507-kolnp-2006-claims.pdf

01507-kolnp-2006-correspondence other.pdf

01507-kolnp-2006-description (complete).pdf

01507-kolnp-2006-drawings.pdf

01507-kolnp-2006-form-1.pdf

01507-kolnp-2006-form-2.pdf

01507-kolnp-2006-form-3.pdf

01507-kolnp-2006-form-5.pdf

01507-kolnp-2006-international publication.pdf

01507-kolnp-2006-international search authority report.pdf

01507-kolnp-2006-pct form.pdf

1507-KOLNP-2006-(29-05-2012)-CORRESPONDENCE.pdf

1507-KOLNP-2006-(30-05-2012)-CORRESPONDENCE.pdf

1507-KOLNP-2006-(30-05-2012)-FORM-1.pdf

1507-KOLNP-2006-(30-05-2012)-FORM-13.pdf

1507-KOLNP-2006-ABSTRACT 1.1.pdf

1507-KOLNP-2006-ABSTRACT-1.2.pdf

1507-KOLNP-2006-AMANDED CLAIMS-1.1.pdf

1507-KOLNP-2006-AMANDED CLAIMS.pdf

1507-KOLNP-2006-CORRESPONDENCE 1.2.pdf

1507-KOLNP-2006-CORRESPONDENCE.pdf

1507-KOLNP-2006-DESCRIPTION (COMPLETE) 1.1.pdf

1507-KOLNP-2006-DESCRIPTION (COMPLETE)-1.2.pdf

1507-KOLNP-2006-DRAWINGS 1.1.pdf

1507-KOLNP-2006-DRAWINGS-1.2.pdf

1507-KOLNP-2006-EXAMINATION REPORT.pdf

1507-KOLNP-2006-FORM 1 1.1.pdf

1507-KOLNP-2006-FORM 1-1.2.pdf

1507-KOLNP-2006-FORM 18 1.1.pdf

1507-KOLNP-2006-FORM 18.pdf

1507-KOLNP-2006-FORM 2 1.1.pdf

1507-KOLNP-2006-FORM 2-1.2.pdf

1507-KOLNP-2006-FORM 3 1.1.pdf

1507-KOLNP-2006-FORM 3 1.3.pdf

1507-KOLNP-2006-FORM 3-1.2.pdf

1507-KOLNP-2006-FORM 5 1.1.pdf

1507-KOLNP-2006-FORM 5 1.2.pdf

1507-KOLNP-2006-GPA.pdf

1507-KOLNP-2006-GRANTED-ABSTRACT.pdf

1507-KOLNP-2006-GRANTED-CLAIMS.pdf

1507-KOLNP-2006-GRANTED-DESCRIPTION (COMPLETE).pdf

1507-KOLNP-2006-GRANTED-DRAWINGS.pdf

1507-KOLNP-2006-GRANTED-FORM 1.pdf

1507-KOLNP-2006-GRANTED-FORM 2.pdf

1507-KOLNP-2006-GRANTED-SPECIFICATION.pdf

1507-KOLNP-2006-OTHERS 1.2.pdf

1507-KOLNP-2006-OTHERS-1.1.pdf

1507-KOLNP-2006-OTHERS.pdf

1507-KOLNP-2006-PA.pdf

1507-KOLNP-2006-PETITION UNDER RULE 137-1.1.pdf

1507-KOLNP-2006-PETITION UNDER RULE 137.pdf

1507-KOLNP-2006-REPLY TO EXAMINATION REPORT 1.1.pdf

1507-KOLNP-2006-REPLY TO EXAMINATION REPORT.pdf

abstract-01507-kolnp-2006.jpg


Patent Number 255781
Indian Patent Application Number 1507/KOLNP/2006
PG Journal Number 13/2013
Publication Date 29-Mar-2013
Grant Date 21-Mar-2013
Date of Filing 02-Jun-2006
Name of Patentee EATON CORPORATION
Applicant Address EATON CENTER 1111 SUPERIOR AVENUE, CLEVELAND, OHIO 44114, UNITED STATES OF AMERICA
Inventors:
# Inventor's Name Inventor's Address
1 COX, ROGER W. 401 FARMCREST DRIVE OAKDALE, PENNSYLVANIA 15071, UNITED STATES OF AMERICA
PCT International Classification Number H05K9/00; H05K9/00
PCT International Application Number PCT/IB2004/003963
PCT International Filing date 2004-12-02
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10/727,921 2003-12-04 U.S.A.