US3776412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas cylinder structure and valve-protecting element therefor
Assignee: Luxfer Inc
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Filing: 1972-09-27
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Granted: 1973-12-04
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Expires: 1992-09-27
Abstract
Abstract A compressed-gas cylinder having an integral neck for attachment of a valve or the like, with a rigid, hollow, open-ended valveprotecting element rotatably mounted on the neck. The protecting element includes a sleeve surrounding the neck and held in place by a retaining ring snap-fitted into an annular recess on the neck outwardly of the sleeve. An enlarged, generally outwardly flaring portion of the protecting element is formed integrally with and projects outwardly from the sleeve for laterally enclosing and protecting a valve mounted on the neck. Openings are provided in the wall of this enlarged portion to afford access to the valve and to enable use of the protecting element as a handle for the cylinder.
Inventors
- 👤 W Mink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:42
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/06; B; B65; B65D; B65D55/00; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/0157; F17C2205/0165; F17C2205/03; F17C2205/0302; F17C2205/0308; F17C2205/0323; F17C2205/0329; F17C2221/00; F17C2221/01; F17C2221/013; F17C2270/00; F17C2270/05
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
184 words
Gas cylinder structure comprising a. a compressed-gas cylinder; and b. a cylindrical neck projecting outwardly from a wall of said cylinder for receiving a valve or the like; wherein the improvement comprises c. a hollow, open-ended protecting element including i. a sleeve having a smooth cylindrical opening receiving said neck for rotatably mounting said element thereon and an outwardly facing annular surface surrounding the outer extremity of said opening, and ii. an enlarged, generally outwardly flaring portion formed integrally with said sleeve and projecting outwardly therefrom for shielding a valve or the like mounted on said neck, said enlarged portion having at least one lateral opening for access to the interior of the element; d. said neck having a portion projecting outwardly beyond said annular surface of said sleeve, with an annular recess formed in said outwardly projecting portion of said neck; and e. a retaining ring mounted in said recess and projecting laterally thereof for engaging said annular surface of said sleeve to prevent outward movement of said sleeve relative to said neck while permitting rotation of said element relative to said neck.
Claim 2
Dependent Claim
184 words
Gas cylinder structure comprising a. a compressed-gas cylinder; and b. a cylindrical neck projecting outwardly from a wall of said cylinder for receiving a valve or the like; wherein the improvement comprises c. a hollow, open-ended protecting element including i. a sleeve having a smooth cylindrical opening receiving said neck for rotatably mounting said element thereon and an outwardly facing annular surface surrounding the outer extremity of said opening, and ii. an enlarged, generally outwardly flaring portion formed integrally with said sleeve and projecting outwardly therefrom for shielding a valve or the like mounted on said neck, said enlarged portion having at least one lateral opening for access to the interior of the element; d. said neck having a portion projecting outwardly beyond said annular surface of said sleeve, with an annular recess formed in said outwardly projecting portion of said neck; and e. a retaining ring mounted in said recess and projecting laterally thereof for engaging said annular surface of said sleeve to prevent outward movement of said sleeve relative to said neck while permitting rotation of said element relative to said neck.
Claim 3
Dependent Claim
19 words
Structure as defined in claim 1, wherein said ring is a resiliently deformable split annulus snap-fitted into said recess.
Claim 4
Dependent Claim
67 words
Structure as defined in claim 2, wherein said enlarged portion of said element has an anNular outer lip, a first large lateral opening extending outwardly through said lip for facilitating access to a valve or the like on said neck, and a second lateral opening bridged outwardly by said lip for receiving a human hand to enable use of the element as a handle for the cylinder.
Claim 5
Dependent Claim
63 words
Structure as defined in claim 3, wherein said neck projects from one end wall of said cylinder in coaxial relation thereto, and wherein said annular lip of said enlarged portion of said element lies in a plane perpendicular to the long axis of said cylinder, for use of said element as a base for supporting said cylinder with the neck thereof oriented downwardly.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |