Patent US4478345A successfully refreshed from Google Patents.
US4478345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained containment for gas cylinder
Assignee: MAR-GAS CORP
•
Filing: 1983-06-27
•
Granted: 1984-10-23
•
Expires: 2003-06-27
Abstract
Abstract A self-containment for a gas cylinder comprising a coaxial annular wall welded to and around the top of the cylinder itself. A circular closure with an exhaust duct opening from it fits over the annular wall and is secured tightly to it with a seal ring between, by a releasable tension band.
Inventors
- 👤 William J. Edinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:08
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/08; F17C13/084; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/058; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/0173; F17C2205/0176; F17C2205/018; F17C2205/03; F17C2205/0302; F17C2205/0308; F17C2205/0323; F17C2205/0329; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T137/8593; Y10T137/86292; Y10T137/86324; Y10T137/86332
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
128 words
A containment for a gas cylinder in use as a supply of gas to an appliance, with an outlet valve at one end of said cylinder, comprising: an annular, generally coaxial wall on said one end of said cylinder surrounding said outlet valve; a weldment securing said wall to said cylinder and sealing completely around and between said wall and cylinder; a circular top closure with a depending annular rim adapted to seal on and around said annular wall; a supply gas duct to be connected to said outlet valve and extending from said top closure; an exhaust gas duct opening from said top closure; a seal ring positioned between said rim and said wall; and releasable means for securing said rim and wall together in sealed relationship.
Claim 2
Dependent Claim
128 words
A containment for a gas cylinder in use as a supply of gas to an appliance, with an outlet valve at one end of said cylinder, comprising: an annular, generally coaxial wall on said one end of said cylinder surrounding said outlet valve; a weldment securing said wall to said cylinder and sealing completely around and between said wall and cylinder; a circular top closure with a depending annular rim adapted to seal on and around said annular wall; a supply gas duct to be connected to said outlet valve and extending from said top closure; an exhaust gas duct opening from said top closure; a seal ring positioned between said rim and said wall; and releasable means for securing said rim and wall together in sealed relationship.
Claim 3
Dependent Claim
77 words
The containment defined by claim 1 including: an upwardly facing collar around said annular wall; said seal ring being positioned on said collar; and a lip around said annular rim adapted to engage said seal ring; and wherein: said releasable means comprises a belt to encircle said rim and annular wall, and conditioned when tightened to draw said lip and collar together; and including: complementary threaded means on the ends of said band to draw same together.
Claim 4
Dependent Claim
31 words
The containment defined by claim 2 including: internal Vee surfaces around said belt; and complementary converging surfaces on said lip and collar engageable by and pressed together by said Vee surfaces.
References Cited (Backward Citations)
US307608A
Cited
US420275A
Cited
US1977268A
Cited
US2465095A
Cited
US3006360A
Cited
US3185336A
Cited
US3790020A
Cited
WO1980001831A1
Cited
US4267940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |