Title of Invention

A DOWN ROD

Abstract ABSTRACT The present invention relates to a down rod for a ceiling fan having a weakened line, a resilient member, preferably a spring, connecting the part of said rod above said weakened line to the part of said rod below said weakened line, such that when load in excess of a predetermined value is applied at one end of said rod, said resilient member stretches to hold said fan.
Full Text FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
&
THE PATENT RULES, 2003
COMPLETE SPECIFICATION
[SECTION 10; RULE 13]
"A DOWN ROD”
APPLICANT: ASHANI SHARAD SHANKARLAL
NATIONALITY: INDIAN
ADDRESS: 8/63, VASANT, 3"" FLOOR, SCHEME-6, ROAD-4,
SION (EAST), MUMBAI 400 022, MAHARASHTRA,
INDIA.
THE FOLLOWING SPECIFICATION DESCRIBES THE NATURE OF THIS INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED:-





FIELD OF INVENTION
The present invention relates to a down rod. More particularly, it relates to a safety down rod for gadgets, viz. a ceiling fan, chandelier or a lamp.
BACKGROUND OF THE INVENTION
Down rod is a metal pipe that extends from the ceiling bracket to the top of the fan. Down rod is used for hanging electrical gadgets such as a ceiling fan or chandelier. Most fans come supplied with a down rod that is 3-10 inches long. Longer down rods are available for high ceilings.
A pair of wire is usually passed through the rod for providing electric connection to the fan. A ceiling fan is supplied with a down rod as a part of the ceiling fan assembly. It is also available in hardware shop as a loose item.
It is a well known fact that ceiling fan is used or misused as one of the means for committing suicide. A person hangs himself from a ceiling fan using a rope or related item and commits suicide. Therefore, means to prevent such attempts are needed.
The present invention obviates the aforesaid drawbacks in the fans known in the prior art by providing a down rod.for a ceiling fan such that if a person tries to hang himself/herself from a fan, excessive load on the fan causes the down rod to unlatch, thereby lowering the portion of the down rod. The fan along with person safely comes down and life is thus saved.

SUMMARY OF THE INVENTION
The present invention relates to a down rod for gadgets described herein having a weakened Tine, a resilient member connecting the part of said rod above said weakened line to the part of said rod below said weakened line, such that when load in excess of a predetermined value is applied at one end of said rod, said resilient member stretches to hold said gadget.
DESCRIPTION
The present invention will now be described with reference to figures accompanying the specification, wherein the same numerals denote the same parts and wherein: -
Figure la) shows the cross-sectional front view of the down rod.
Figure I b) shows an exploded cross-sectional front view of the spring assembly.
Referring to the figures, the present invention relates to a down rod (I) for a ceiling fan having a weakened line (2). A resilient member connects the part (3) of the rod above the weakened line to the part (4) of the rod below the weakened line. In a preferred embodiment, a spring is used. The spring can be of any type. Any member having a resilient force may be used in place of a spring. More preferably, a spring assembly comprising of at least two springs

(5,6). A tension wire (7) is preferably used within the rod (I). The tension wire carries the load, viz. the fan. The two springs, viz. clamping spring (5) and safety spring (6) are connected together. The tension wire (7) is tied to the upper hook (9) of the clamping spring (5), which passes through the safety spring (6) and is tied firmly to the upper hook (10) of the safety spring (6). The tension wire keeps the safety spring in a closed condition whereas the clamping spring remains open. The lower hook (14) of the clamping spring is stretched to a specific limit in the lower portion of the rod. This lower hook is clamped using a rivet (II). The upper hook of the safety spring is clamped using a rivet (12). The resilient force in the said spring keeps the upper tube firmly clamped
with the lower tube. It also keeps the tension wire under constant tension. A pair of electric wire is run through the rod (I) and spring assembly to provide electric connection.
An electric wire (13) joint at intermediate end is used in the rod. The wire is cut and joint again and is insulated using a sleeve (15). Thereafter it is inserted in the said tube. When the load in excess of the predetermined load is applied to one end of the rod, the said joint opens.
The clamping spring (5) keeps the upper part and lower part of the tube clamped with a force of 12 Kgf to 18 Kgf, which is about two and a half to three times the weight of the ceiling fan. This helps keeping the assembly firm even when the fan rotates. This clamping spring also keeps the tension wire tight under tension in extreme temperature conditions as under. During

summer, the tension wire gets expanded, thereby contracting the spring. In winter, the tension wire may try to contract, making the clamping spring to expand. Thus, the rod remains joint in any condition. The end hooks of the spring are extended to ensure that the hook is not opened when sudden load is applied.
The safety spring comes into picture when the tension wire breaks. The load gets transferred to the spring. The purpose of this spring is also of two fold:
a) This spring is designed such that when the tension wire breaks it expands to the length depending on the height of the person. The load on the tension wire is taken on or transferred to the safety spring (upper spring). It keeps the fan hanging above the head of person and thus avoids the fan hitting on the person's head in the case of eventuality.
b) It is also designed such that the person will be able to unfasten the rope (or any other means used for hanging) with ease once he/she lands on the ground. As in the case of clamping spring, to avoid opening up due to impact load the hooks of the spring has the extended ends.
A holding strip (8) is used to protect the weakened line (2). The predetermined value of the load can vary from IS Kgs onwards.

I claim;
not clear
1. A down rod for gadgets described herein having a weakened line, a
resilient member connecting the part of said rod above said weakened line to the part of said rod below said weakened line, such that when load in excess of a predetermined value is applied at one end of said rod, said resilient member stretches to hold said gadget.
2. A down rod as claimed in Claim !, wherein said resilient member is a spring.
3. A down rod as claimed in Claim I, wherein said resilient member comprises of at least two springs connected with each other.
4. A down rod as claimed in any of the aforesaid Claims, wherein breaking of said weakened line causes said rod to separate in atleast two parts.
5. A down rod as claimed in Claim 4, wherein a tension wire is used in said rod.
6. A down rod as claimed in Claim 5, wherein excess load causes said tension wire to break, thereby causing the upper spring to stretch.
7. A down rod as claimed in any of the aforesaid claims wherein an electric supply wire joint at intermediate end is used in said rod such that said excess load causes said joint to open.
8. A down rod substantially as herein described with reference to the drawings accompanying the specification.


2004
Dated this 30th day of December 2005.




To:
The Controller of Patents, The Patent Office, Mumbai 400 0l3.
S-3/PATENT/SHARAD/CS_FINAL



Ashani Sharad Shankarlal
Applicant

ABSTRACT
The present invention relates to a down rod for a ceiling fan having a weakened line, a resilient member, preferably a spring, connecting the part of said rod above said weakened line to the part of said rod below said weakened line, such that when load in excess of a predetermined value is applied at one end of said rod, said resilient member stretches to hold said fan.






Documents:

1430-mum-2004-abstract(12-7-2007).doc

1430-mum-2004-abstract(12-7-2007).pdf

1430-mum-2004-abstract.doc

1430-mum-2004-abstract.pdf

1430-mum-2004-cancelled pages(12-7-2007).pdf

1430-mum-2004-claims(granted)-(12-7-2007).doc

1430-mum-2004-claims(granted)-(12-7-2007).pdf

1430-mum-2004-claims.doc

1430-mum-2004-claims.pdf

1430-mum-2004-correspondence received.pdf

1430-mum-2004-correspondence(12-7-2007).pdf

1430-mum-2004-correspondence(ipo)-(13-8-2007).pdf

1430-mum-2004-description (complete).pdf

1430-mum-2004-drawing(12-7-2007).pdf

1430-mum-2004-drawing.pdf

1430-mum-2004-form 1(30-12-2004).pdf

1430-mum-2004-form 18(6-9-2006).pdf

1430-mum-2004-form 2(granted)-(12-7-2007).doc

1430-mum-2004-form 2(granted)-(12-7-2007).pdf

1430-mum-2004-form 3(30-12-2004).pdf

1430-mum-2004-form 5(30-12-2004).pdf

1430-mum-2004-form 9(23-12-2005).pdf

1430-mum-2004-form-1.pdf

1430-mum-2004-form-18.pdf

1430-mum-2004-form-2 (provisional).pdf

1430-mum-2004-form-2 complete.doc

1430-mum-2004-form-2 provisional.doc

1430-mum-2004-form-2.pdf

1430-mum-2004-form-3.pdf

1430-mum-2004-form-5-ver-23-12-2005.pdf

1430-mum-2004-form-5-ver-30-12-2004.pdf

1430-mum-2004-form-9.pdf

abstract-1.jpg

abstract1.jpg


Patent Number 208859
Indian Patent Application Number 1430/MUM/2004
PG Journal Number 35/2007
Publication Date 31-Aug-2007
Grant Date 13-Aug-2007
Date of Filing 30-Dec-2004
Name of Patentee SHARAD S. ASHANI
Applicant Address 8/63, Vasant, 3rd Floor, Scheme-6, Road-4, Sion (East) Mumbai-400022
Inventors:
# Inventor's Name Inventor's Address
1 Nil Nil
PCT International Classification Number F03G1/06
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA