Pressure vessel with diaphragm compression seal
US5062455A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1989 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Aug 25, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2201/61
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure vessel (10) has partially telescoped upper and lower shells (12, 14), a diaphragm (20a) with a peripheral edge (26) trapped and sealed between the shells (12, 14), and compression structure (50, 52) on the inner side (44a) of the peripheral edge (26) of the diaphragm (20a) reducing the amount of diaphragm material requiring compression and also increasing the compression of the bulge (42) of the peripheral edge (26) of the diaphragm (20a) in the bulge (34) of the upper wall section (18) of the lower shell (14) to enhance the seal thereat. The compression structure includes one or more internal ribs (50, 52) on the inner side (44a) of the peripheral edge (26) of the diaphragm (20a) such that the inner cylindrical wall portion (38) of the lower wall section (16) of the upper shell (12) compresses the internal ribs (50, 52) and subjects the bulge (42) of the peripheral edge (26) of the diaphragm (20a) to a direct force to provide the noted increased compression of the bulge (42) of the peripheral edge (26) of the diaphragm (20a), and such that the inner cylindrical wall portion (38) of the lower wall section (16) of the upper shell (12) engages and compresses the first rib …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.