Patent US3824745A successfully refreshed from Google Patents.
Patent US3848768A successfully refreshed from Google Patents.
US3848768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination protective cap and stand for a pressurized gas cylinder
Assignee: Individual
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Filing: 1973-12-07
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Granted: 1974-11-19
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Expires: 1993-12-07
Abstract
Abstract A combination protective cap and stand for a pressurized gas cylinder intended for use both as a cap for protecting the discharge valve of the cylinder when used in one manner, and intended to provide a stand for the cylinder when used in a second manner, the cap formed of a cylindrical body member having its opposed ends diverging radially outwardly to form a greater diameter than the central portion thereof such that the side wall surfaces are of a longitudinally concave configuration, a plurality of latches pivotally mounted about the side surfaces of the cap and each including a hook member and latch retaining member, and a collar ring adapted to be bolted about the top portion of the cylinder and having a plurality of hook receiving slots formed in the lower edge thereof and adapted to receive therein a respective hook from an associated latch member, each latch member being pivotally mounted to the cap such that rotation of the latch member about its axis serves to engage each eccentrically pivotally mounted hook member tightly in its associated hook receiving slot in a manner to retain the cap snugly received on the top end of the cyllinder, the latch being detachably secured to its hook member when in the locking position by the spring wire latch retainer member. A handle is provided on the side of the cap for use in assisting in the carrying of a pressurized cylinder to which the cap is attached. The cap is adapted to be inverted when used as a stand for the tank such that the top closed end forms a base resting on a horizontal surface with the bottom end of the tank resting in the bottom end of the cap.
Inventors
- 👤 R Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:35
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/002; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/0157; F17C2205/0165; F17C2205/03; F17C2205/0302; F17C2205/0308; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/03; F17C2221/031; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
348 words
A protective cap intended for use with a pressurized gas cylinder having an elongated cylinder body member and semispherical top and bottom end surfaces, the top surface having a boss provided centrally thereof with a valve assembly received therein and projecting axially therefrom, the cap intended to protect the valve assembly from damage and abuse, the protective cap comprising: a cap of an elongated hollow cylindrical configuration having a closed top edge, an open bottom edge, and longitudinally concave shaped side wall surfaces interconnecting said top and bottom edges, said bottom edge being of a diameter greater than the diameter of the central portion of said cap and being of a lesser diameter than the diameter of said cylinder and defining a contoured skirting about the cap adapted to seat on the circumference of the semispherical curved top end surface of the cylinder; a plurality of latch means spaced circumferally about the side wall of said cap and pivotally mounted thereto for rotation relative thereto, each latch means including a lever arm having one end pivotally attached to said side wall surface with the opposite end projecting therefrom and each having a top end of a hook member pivotally mounted thereto in a position radially outwardly from and vertically above the pivot axis; latch retaining means formed integrally with said lever arm and adapted to detachably attach said lever arm to a portion of said hook member; a collar ring having a circumference adapted to fit snugly about the top circumferal end of said cylinder, means for detachably attaching said collar ring to said cylinder, said collar ring having a top edge, a bottom edge, and confronting end edges, and a plurality of angularly spaced apart projections defined in said bottom edge and projecting outwardly therefrom to define a cavity like recess therebehind of a size and configuration adapted to detachably receive a hook portion of said hook member therein for detachably retaining said cap to said collar ring in a position resting on said cylinder top end surface in a manner surrounding and protecting said valve assembly.
Claim 2
Dependent Claim
348 words
A protective cap intended for use with a pressurized gas cylinder having an elongated cylinder body member and semispherical top and bottom end surfaces, the top surface having a boss provided centrally thereof with a valve assembly received therein and projecting axially therefrom, the cap intended to protect the valve assembly from damage and abuse, the protective cap comprising: a cap of an elongated hollow cylindrical configuration having a closed top edge, an open bottom edge, and longitudinally concave shaped side wall surfaces interconnecting said top and bottom edges, said bottom edge being of a diameter greater than the diameter of the central portion of said cap and being of a lesser diameter than the diameter of said cylinder and defining a contoured skirting about the cap adapted to seat on the circumference of the semispherical curved top end surface of the cylinder; a plurality of latch means spaced circumferally about the side wall of said cap and pivotally mounted thereto for rotation relative thereto, each latch means including a lever arm having one end pivotally attached to said side wall surface with the opposite end projecting therefrom and each having a top end of a hook member pivotally mounted thereto in a position radially outwardly from and vertically above the pivot axis; latch retaining means formed integrally with said lever arm and adapted to detachably attach said lever arm to a portion of said hook member; a collar ring having a circumference adapted to fit snugly about the top circumferal end of said cylinder, means for detachably attaching said collar ring to said cylinder, said collar ring having a top edge, a bottom edge, and confronting end edges, and a plurality of angularly spaced apart projections defined in said bottom edge and projecting outwardly therefrom to define a cavity like recess therebehind of a size and configuration adapted to detachably receive a hook portion of said hook member therein for detachably retaining said cap to said collar ring in a position resting on said cylinder top end surface in a manner surrounding and protecting said valve assembly.
Claim 3
Dependent Claim
170 words
The protective cap as set forth in claim 1 wherein said lever arm retaining means comprises a stop member formed integrally with said lever arm and projecting outwardly therefrom in a direction to engage said hook member, a retaining member spaced outwardly of said stop member and projecting in a direction parallel thereto relative to said lever arm, a resilient wire supporting said retaining member relative to said lever arm in a manner permitting deflection of said retaining member in a direction substantially normal to the plane of said lever arm; and said hook member is of a generally J-shaped conFiguration having an elongated base member with a short hook forming member at the bottom end thereof with the top end of the base member being pivotally attached to the top end portion of said lever arm in a position radially spaced to and above said pivot axis when said lever arm is viewed in a position with said hook member detachably received intermediate said stop and said retaining member.
Claim 4
Dependent Claim
43 words
The protective cap as set forth in claim 2 further comprising a mounting plate associated with each lever arm and affixed to said side wall surface by suitable fastening means, each of said lever arms being pivotally mounted relative to said mounting plate.
Claim 5
Dependent Claim
57 words
The protective cap as set forth in claim 3 further comprising a U-shaped handle having its leg portions affixed to said cap side wall surface and projecting outwardly therefrom of a size and configuration adapted to be grasped by an individual''s hand for use in the carrying of the cylinder to which the protective cap is attached.
Claim 6
Dependent Claim
72 words
The protective cap as set forth in claim 4 wherein said cap top edge is of a diameter greater than the diameter of said cylinder and is adapted for use as a stand for said cylinder upon inverting said cap to rest said top edge on a suitable horizontal surface at which time the semispherical cylinder bottom surface may be restingly received in said cap bottom edge to support said cylinder thereon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |