continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6653/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :31/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "SEAL STRUCTURE OF PRESSURE VESSEL"
(51) International classification :F16J 12/00 (71)Name of Applicant :
(31) Priority Document No :PCT/JP2006/301577 1)SHI MECHANICAL & EQUIPMENT INC.
(32) Priority Date :31/01/2006
Address of Applicant :1501, IMAZAIKE, SAIJO-SHI,
(33) Name of priority country :Japan
EHIME 799-1393, JAPAN. Japan
(86) International Application No :PCT/JP2006/301577 (72)Name of Inventor :
Filing Date
:31/01/2006
1)MORINAGA SHOJI
(87) International Publication No :WO 2007/088593 2)ITO KOJI
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
3)NISHIMI HARUYUKI
4)KANEMORI YORIYUKI
5)MORI YUJI
(62) Divisional to Application Number :NA
6)YAMAJI KIICHIRO
Filing Date
:NA
(57) Abstract :
There is provided a seal structure which surely maintains sealing performance of a pressure vessel including a bottomed tubular vessel
body with an opening end and a lid closing the opening end. In this seal structure of the pressure vessel, annular grooves 11a, lib and
ridges 21a, 21b fitted to each other are formed on both of the inner and outer sides at the joining faces of opening end 11 of the vessel
body 10 and the lid 20, and an annular vent hole 30 is formed between the inner ridge 21a and the outer ridge 21b. An air supply hole
3 1 for supplying an inert gas to the vent hole 30 is formed in the lid 20. The joining faces on the inside of the inner groove 1 la and
inner ridge 21a are in metal-to-metal contact. furthermore, gaskets 51a, 51b are held between the ridges 21a, 21b and the grooves 1 la,
1lb.
No. of Pages : 19 No. of Claims : 5
The Patent Office Journal 24/10/2008 26125