US3690347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel
Assignee: GREE HYDRAULICS OF CALIFORNIA Inc
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Filing: 1970-12-16
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Granted: 1972-09-12
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Expires: 1990-12-16
Abstract
Abstract This invention relates to the art of pressure vessels of the type having a cylindrical container, one end of which is closed and has a port, and the other end of which defines an open mouth. The container has a deformable bladder of resilient material positioned therein, said bladder having a large mouth with an annular supporting member secured thereto and extending outwardly therefrom. The free edge portion of the supporting member which is longitudinally spaced from the region where the bladder is secured thereto, extends into an annular groove defined between the inner surface of the open mouth of the container and the outer periphery of a cover member positioned in the upper portion of the supporting member, the opposed surfaces of the annular groove and the free edge portion of the supporting member being bonded together to seal the container.
Inventors
- 👤 Abduz Zahid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:54
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/12; F15B1/14; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/3156; F15B2201/40; F15B2201/415; F15B2201/4155; F15B2201/43; F15B2201/435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
300 words
A pressure vessel comprising an elongated container of rigid material, having one end open and the other end closed, said closed end having an axial port therethrough, a deformable bladder of resilient material in said container, said bladder having a mouth at one end, and being closed at its other end, an annular supporting member of relatively thin material bonded to the mouth of said bladder and having a retaining portion extending outwardly therefrom, a cylindrical cover member positioned in the annular retaining portion, said cover member and its encompassing supporting member being positioned in the mouth of said container, the opposed surfaces of said cover member and the mouth of said container adjacent the outer ends thereof being beveled to define an annular groove therebetween that is substantially V-shaped in cross section having its apex directed downwardly, with the free edge of said retaining portion protruding slightly through said apex into said annular groove, and weld means bonding the opposed beveled surfaces of said groove in said cover member and said container and opposed surfaces of the protruding portion of said supporting member, to form a dependable gas and liquid seal said bladder having a thickened rim portion at its mouth, said annular supporting member having a mounting portion bonded in the thickened rim portion, said retaining portion being transversely spaced radially outwardly from said mounting portion to define an annular seating shoulder, said cover member having a relatively narrow peripheral rim on its inner surface resting on said seating shoulder between the thickened rim portion of said bladder and the retaining portion of said supporting member, the lower ends of the beveled surface of said container mouth and said cover member being aligned when the peripheral rim of said cover member is seated on said annular sealing shoulder.
Claim 2
Dependent Claim
300 words
A pressure vessel comprising an elongated container of rigid material, having one end open and the other end closed, said closed end having an axial port therethrough, a deformable bladder of resilient material in said container, said bladder having a mouth at one end, and being closed at its other end, an annular supporting member of relatively thin material bonded to the mouth of said bladder and having a retaining portion extending outwardly therefrom, a cylindrical cover member positioned in the annular retaining portion, said cover member and its encompassing supporting member being positioned in the mouth of said container, the opposed surfaces of said cover member and the mouth of said container adjacent the outer ends thereof being beveled to define an annular groove therebetween that is substantially V-shaped in cross section having its apex directed downwardly, with the free edge of said retaining portion protruding slightly through said apex into said annular groove, and weld means bonding the opposed beveled surfaces of said groove in said cover member and said container and opposed surfaces of the protruding portion of said supporting member, to form a dependable gas and liquid seal said bladder having a thickened rim portion at its mouth, said annular supporting member having a mounting portion bonded in the thickened rim portion, said retaining portion being transversely spaced radially outwardly from said mounting portion to define an annular seating shoulder, said cover member having a relatively narrow peripheral rim on its inner surface resting on said seating shoulder between the thickened rim portion of said bladder and the retaining portion of said supporting member, the lower ends of the beveled surface of said container mouth and said cover member being aligned when the peripheral rim of said cover member is seated on said annular sealing shoulder.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |