Title of Invention

A RETURN PIN SPRING ASSEMBLY AND A SPRING CARTRIDGE FOR EJECTION IN MOULDS

Abstract To simplify operation of assembling & disassembling of the moulds, a return pin spring assembly and spring catridge used in manufacturing the moulds. The system of return spring assembly & the spring cartridge consist of the return pin serving as guide pin & locating pin, compression spring & a specially designed washer & spring cartridge. The return pin having circular cross section for guiding length of pin. The return pin assembly is located in between punch holder plate & ejector pin holder plate.
Full Text

Documents:

128-mum-2002-abstract(13-2-2002).doc

128-mum-2002-abstract(13-2-2002).pdf

128-mum-2002-abstract(granted)-(30-6-2009).doc

128-mum-2002-abstract(granted)-(30-6-2009).pdf

128-mum-2002-cancelled pages(5-5-2004).pdf

128-mum-2002-claims(13-2-2002).doc

128-mum-2002-claims(13-2-2002).pdf

128-mum-2002-claims(amended)-(5-5-2004).pdf

128-mum-2002-claims(granted)-(30-6-2009).doc

128-mum-2002-claims(granted)-(30-6-2009).pdf

128-mum-2002-correspondence(5-5-2004).pdf

128-mum-2002-correspondence(ipo)-(14-7-2009).pdf

128-mum-2002-description(complete)-(13-2-2002).pdf

128-mum-2002-description(granted)-(30-6-2009).pdf

128-mum-2002-drawing(amended)-(5-5-2004).pdf

128-mum-2002-drwing(granted)-(30-6-2009).pdf

128-mum-2002-form 1(13-2-2002).pdf

128-mum-2002-form 19(27-6-2003).pdf

128-mum-2002-form 2(13-2-2002).doc

128-mum-2002-form 2(13-2-2002).pdf

128-mum-2002-form 2(granted)-(30-6-2009).doc

128-mum-2002-form 2(granted)-(30-6-2009).pdf

128-mum-2002-form 2(title page)-(13-2-2002).pdf

128-mum-2002-form 2(title page)-(granted)-(30-6-2009).pdf

128-mum-2002-form 3(18-12-2002).pdf

128-mum-2002-power of authority(13-2-2002).pdf

128-mum-2002-specification(amended)-(5-5-2004).pdf


Patent Number 235345
Indian Patent Application Number 128/MUM/2002
PG Journal Number 30/2009
Publication Date 24-Jul-2009
Grant Date 30-Jun-2009
Date of Filing 13-Feb-2002
Name of Patentee LARSEN & TOUBRO LIMITED,
Applicant Address L&T House, Ballard Estate, Mumbai-400 001
Inventors:
# Inventor's Name Inventor's Address
1 KUMSI SREENIVASACHARYA ARAVINDKUMAR C/o LARSEN & TOUBRO LIMITED, L&T House, Ballard Estate, Mumbai-400 001
PCT International Classification Number B22D 33/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA