Title of Invention

AN IMPROVED METHOD FOR GRAINAGE TECHNOLOGY AND A TRAY USED THEREFOR

Abstract This invention relates to an improved method for grainage comprising steps of transportation, preservation and emergence wherein the cocoons are disposed in the small holes and big holes of a tray provided with cones, which are closed with perforated cups; egg laying, for which the perforated caps are replaced with the cones; dipping of the tray with the cones in both sides in NaOH solution for 20 seconds and ringing in water is carried out for 5 times for 2 minutes each in 5 different pots separately; dis-infection of the eggs is carried out in 3% Hcl and KOH solution for 30 minutes taken in the ratio of 1:1. This invention also relates to a tray assembly for improved grainage comprising of a base tray provided with a plurality of big and small holes for the placement of cocoons therein, the big holes are disposed with a plurality of cones, perforated caps and pathological caps.
Full Text

-2-
FIELD OF THE INVENTION
This invention relates to an improved method for grainage and a tray
used therefor.
BACKGROUND OF THE INVENTION
Grainage is as such known in the art, comprising the steps of
transportation, preservation, emergence, egg laying, washing and egg
drying.
Transportation involves transferring of cocoons in bamboo baskets,
cartons or gunny bags. This allows limited transportation of alive
cocoons in the form of garlands. Preservation of alive cocoons is carried
out in the form of garlands of length 100-150 cm, which are placed on
the stretched wire in the preservation room. The garlands and two
consecutive rows of wires are separated by a distance of 4-9 inch and 2-
21/2 feet respectively.

As a result of preservation, emergence takes place from the garland. The
egg-laying is done in the bamboo monias, earthen cups/pots, plastic
boxes as well as in the nylon bags. The eggs are collected mechanically,
which are processed in Musling cloth. Finally, spreading of the washed
eggs is done on ash or oven/bioting paper so as to obtain the final
product.
The above process is associated with the following disadvantages:
1. Deficiency of grainage which results in high cost of seed
production.
2. More space requirement.
3. Consumption of more time.
4. Decentralization of process, which requires more manpower.
5. It is hazardous.
OBJECTS OF THE INVENTION
The primary object of the present invention is to propose an improved
method for grainage technology and a tray used therefor, which causes
convenience in the sorting of alive cocoons.


Another object of the present invention is to propose an improved
method for grainage and a tray used therefor which facilitates more
production per unit area because of more preservation at a time.
Further object of the present invention is to propose an improved method
for grainage which is simple and easy to conduct.
Still another object of the present invention is to propose an improved
method for grainage and a tray used therefore which is more hygienic
than the prior art thereby avoids dis-insfection.
STATEMENT OF INVENTION
According to this invention there is provided an improved method for
grainage comprising steps of transportation, preservation and emergence
wherein the cocoons are disposed in the small holes and big holes of a
tray provided with cones, which are closed with perforated cups; egg
laying, for which the perforated caps are replaced with the cones; dipping
of the tray with the cones in both sides in NaOH solution for 20 seconds
and ringing in water is carried out for 5 times for 2 minutes each in 5
different pots separately; dis-infection of the eggs is carried out in 3% Hcl
and KOH solution for 30 minutes taken in the ratio of 1:1.
».


Further according to this invention there is provided a tray assembly for
improved grainage comprising of a base tray provided with a plurality of
big and small holes for the placement of cocoons therein, the big holes
are disposed with a plurality of cones, perforated caps and pathological
caps.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
Further objects and advantages of this invention will be more apparent
from the ensuing description when read in conjunction with the
accompanying drawings and wherein:
Figure 1 shows: plan and front elevation of the tray of the present
invention.

Figure 2 shows: sectional view of the tray.
DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO
ACCOMPANYING DRAWING.
This invention proposes improved grainage technology which is
conducted in a tray of the present invention. The tray is disposed with a
plurality of big and small holes (1 and 2) symmetrically. The invention is
carried out in 6 stages namely, transportation, preservation, emergence,
egg laying, egg washing and egg drying as it was in prior art;
In the process of transportation, the big holes of the tray are fixed with
the cones (3) and tasar cocoons are placed in the small holes.
This step is followed by placement of second tier of cocoons inside the
cone on its reverse side, which is closed with perforated cup. The trays


are piled after filling each tray. The cones are provided with a plurality of
slits on their circumference and perforations on their top portion.
The cocoons in the tray are allowed for preservation and emergence for a
prescribed time period with the cones and perforated caps. During
preservation, each tray is put on the rack in the preservation room. The
emergence is followed by egg laying for which the perforated cap is
replaced with cone.
Thereafter, the moth are taken to the Examination room for testing,
which confirms the dis-infection of the moth. This test is carried out in
an other tray, the big holes of which are fixed with the pathelogical cups
provided with pastals. The pathelogical cups are used for moth smear
preparation. The infected eggs are taken out of the tray. Subsequently,
the tray with eggs and cones on both sides is dipped in NaOH solution
for maximum 20 second and thoroughly ringed in water for atleast 5
times for 2 minutes each in 5 different pots separately. Ultimately the
eggs are dis-infected with 3% Hcl and 3% KOH solution for 30 minutes
taken in the ratio of 1:1 and the dis-infected eggs are washed with water
and allowed to dry in-situ condition.


The eggs are prepared in the cellular condition which can be collected by
taking out the lower cones for mass production and supply.
The base tray is made of for example: plastic (HDP/LDP) or PVC. The
collars are extended upwardly and downwardly so as to facilitate the
placement of the different components like cones etc. The big holes are
provided in for example: 6X7 rows. The small holes are extended in one
direction having collar provided in for example: 6X5 rows.
In the present invention, the upside down placement of cocoons against
the traditions enables smooth emergence and conserves energy of moth
resulting in better fecundity.
This is in confirmation with other sericigenous insects such as Bombyx
mori. The statistically pooled data on emergence efficiency, crippled
moth, pupal mortality and egg laying co-efficient are presented in Table -
1 given below:-


The perusal of data indicates that there is non-significant difference at
5% level in emergence efficiency of both the sexes, mean emergence of
male and female crippled moth and egg laying coefficient under existing
practices. However, moth and pupal mortality showed statistically
significant difference at 5% level. It adjudicated that the application of
TGT is at par with the existing grainage practices. It indicated
statistically significant reduced pupal mortality (7.77 ± 2.37) and moth
mortality (0.92 ± 0.21) in non-diapausing population against control i.e
26.63 ± 2.33 and 2.28 ± 0.54 respectively. The perusal of Table 3
indicates that a total of 38660 cocoons processed and produced 7965
dfls with 4.85:1 (cocoon dfl) is at par with expected result of 5:1. The
second crop grainage gave 3.86:1 in DTv and 4.9:1 in DBv indicates
better results which can be further improvised with TGT applications.
The economics of TGT projections against the existing practices to
adjudicate the unit cost of tasar seed production is depicted in Table 2. It
is note that with TGT applications, the unit cost of BV and TV dfls comes
to Rs. 3.51 and Rs. 2.86 respectively against Rs. 4.35 and Rs. 3.50, with
existing technology. With introduction of total modality in grainage has
an economic efficiency of 19.3% and 18.29%. This also

reduces drastically the capital expenditure on infrastructures with
partial reduction in working capital.
It is to be noted that the present invention is susceptible to
modifications, adaptations and changes by those skilled in the art. Such
variant embodiments employing the concepts and features of this
invention are intended to be within the scope of the present invention,
which is further set forth under the following claims:-

WE CLAIM;
1. An improved method for grainage comprising steps of:
transportation, preservation and emergence wherein the cocoons
are disposed in the small holes and big holes of a tray provided
with cones, which are closed with perforated cups;
egg laying, for which the perforated caps are replaced with the
cones;
dipping of the tray with the cones in both sides in NaOH solution
for 20 seconds and ringing in water is carried out for 5 times for 2
minutes each in 5 different pots separately;
dis-infection of the eggs is carried out in 3% Hcl and KOH solution
for 30 minutes taken in the ratio of 1:1.
2. A tray assembly for improved grainage comprising of a base tray
provided with a plurality of big and small holes for the placement
of cocoons therein, the big holes are disposed with a plurality of
cones, perforated caps and pathological caps.
3. A tray as claimed in claim 2 wherein the cone is provided with a
plurality of slits on its circumference and holes on its top.
4. A tray as claimed in any of the preceding claims wherein the big
holes are extended in upward and downward direction.

5. A tray as claimed in any of the preceding claims wherein the small
holes are extended in one direction.
6. An improved method for grainage substantially as herein described
with reference to accompanying drawings.
7. A tray assembly for improved grainage substantially as herein
described with reference to accompanying drawings.


ABSTRACT

"An improved method for grainage and a tray used thereof.
This invention relates to an improved method for grainage comprising
steps of transportation, preservation and emergence wherein the cocoons
are disposed in the small holes and big holes of a tray provided with
cones, which are closed with perforated cups; egg laying, for which the
perforated caps are replaced with the cones; dipping of the tray with the
cones in both sides in NaOH solution for 20 seconds and ringing in water
is carried out for 5 times for 2 minutes each in 5 different pots
separately; dis-infection of the eggs is carried out in 3% Hcl and KOH
solution for 30 minutes taken in the ratio of 1:1. This invention also
relates to a tray assembly for improved grainage comprising of a base
tray provided with a plurality of big and small holes for the placement of
cocoons therein, the big holes are disposed with a plurality of cones,
perforated caps and pathological caps.

Documents:

0246-kol-2007 abstarct.pdf

0246-kol-2007 assignment.pdf

0246-kol-2007 claims.pdf

0246-kol-2007 correspondence others.pdf

0246-kol-2007 description complete).pdf

0246-kol-2007 drawings.pdf

0246-kol-2007 form-1.pdf

0246-kol-2007 form-2.pdf

0246-kol-2007 form-3.pdf

246-KOL-2007-ABSTRACT.pdf

246-KOL-2007-CANCELLED PAGES.pdf

246-KOL-2007-CLAIMS.pdf

246-KOL-2007-CORRESPONDENCE 1.1.pdf

246-kol-2007-correspondence 1.3.pdf

246-KOL-2007-CORRESPONDENCE-1.1.pdf

246-KOL-2007-CORRESPONDENCE-1.2.pdf

246-KOL-2007-CORRESPONDENCE.pdf

246-KOL-2007-DESCRIPTION (COMPLETE).pdf

246-KOL-2007-DRAWINGS.pdf

246-KOL-2007-EXAMINATION REPORT.pdf

246-KOL-2007-FORM 1.pdf

246-KOL-2007-FORM 18.pdf

246-KOL-2007-FORM 2.pdf

246-KOL-2007-FORM 3.pdf

246-KOL-2007-GRANTED-ABSTRACT.pdf

246-KOL-2007-GRANTED-CLAIMS.pdf

246-KOL-2007-GRANTED-DESCRIPTION (COMPLETE).pdf

246-KOL-2007-GRANTED-FORM 1.pdf

246-KOL-2007-GRANTED-FORM 2.pdf

246-KOL-2007-GRANTED-SPECIFICATION.pdf

246-KOL-2007-OTHERS.pdf

246-KOL-2007-PA.pdf

246-KOL-2007-REPLY TO EXAMINATION REPORT.pdf


Patent Number 254627
Indian Patent Application Number 246/KOL/2007
PG Journal Number 48/2012
Publication Date 30-Nov-2012
Grant Date 27-Nov-2012
Date of Filing 19-Feb-2007
Name of Patentee CENTRAL TASAR RESEARCH AND TRAINING INSTITUTE
Applicant Address NAGRI, RANCHI-835303.
Inventors:
# Inventor's Name Inventor's Address
1 S.K.TIWARI CENTRAL TASAR RESEARCH AND TRAINING INSTITUTE, NAGRI, RANCHI-835303.
PCT International Classification Number A01K67/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA