US3831802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective cap and fluid cylinder assembly
Assignee: Individual
•
Filing: 1971-06-12
•
Granted: 1974-08-27
•
Expires: 1991-06-12
Abstract
Abstract A fluid cylinder body is provided with a protective cap. The cap fits over the cylinder valve handle and has a notch to receive a retainer pin carried on the cylinder. A spring is centrally disposed within the cap and bears against the handle through a pusher plate to releasably secure the pin in the notch and also protect the handle. The pusher plate may be configured to aid in centering the cap around the handle. A second spring may be provided to help bias the pin against a notch detent.
Inventors
- 👤 H Chambers
- 👤 R Hoagland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:19
CPC Classifications
G; G07; G07F; G07F19/00; G07F19/20; G07F19/201; F; F17; F17C; F17C13/00; F17C13/06; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0119; F17C2201/03; F17C2201/032; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0308; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
239 words
An improved fluid cylinder assembly which comprises, in combination: a fluid cylinder body having a plurality of retainer pins extending outwardly from said cylinder body at spaced intervals and at least a portion of a valve, including a valve handle, extending outwardly therefrom, wherein said handle is secured to said cylinder body through a valve coupling external of said body; a valve cap disposed around and releasably enclosing said valve handle, said cap comprising a self-supporting hollow shell spaced outwardly of said valve handle and open at one end thereof, said one end abutting said cylinder body in the region of said valve handle, and defining a matching set of configured notches for releasably receiving corresponding ones of said retainer pins, a spring generally centrally disposed within said shell adjacent the opposite end thereof and extending towards said open end, spring retaining means securing one end of said spring to said shell at said opposite end and a valve handle pusher plate secured to the free end of said spring, whereby said cap is releasably retained centered around said valve handle to protect the same from damage; and a second spring generally annularly disposed within said shell adjacent the inner surface thereof and around said valve coupling, one end of said annular spring being secured to said shell and the opposite end thereof being disposed in said notch in abutting relation to at least one of said retainer pins.
Claim 2
Dependent Claim
239 words
An improved fluid cylinder assembly which comprises, in combination: a fluid cylinder body having a plurality of retainer pins extending outwardly from said cylinder body at spaced intervals and at least a portion of a valve, including a valve handle, extending outwardly therefrom, wherein said handle is secured to said cylinder body through a valve coupling external of said body; a valve cap disposed around and releasably enclosing said valve handle, said cap comprising a self-supporting hollow shell spaced outwardly of said valve handle and open at one end thereof, said one end abutting said cylinder body in the region of said valve handle, and defining a matching set of configured notches for releasably receiving corresponding ones of said retainer pins, a spring generally centrally disposed within said shell adjacent the opposite end thereof and extending towards said open end, spring retaining means securing one end of said spring to said shell at said opposite end and a valve handle pusher plate secured to the free end of said spring, whereby said cap is releasably retained centered around said valve handle to protect the same from damage; and a second spring generally annularly disposed within said shell adjacent the inner surface thereof and around said valve coupling, one end of said annular spring being secured to said shell and the opposite end thereof being disposed in said notch in abutting relation to at least one of said retainer pins.
Claim 3
Dependent Claim
45 words
The improved assembly of claim 1 wherein said notch is of the bayonet type and defines a pin detent and wherein said first and second springs cooperate to releasably lock said retainer pin against said detent to releasably hold said cap against said cylinder body.
Claim 4
Dependent Claim
210 words
An improved fluid cylinder assembly which comprises, in combination: a fluid cylinder body having at least a portion of a valve, including a valve handle, extending outwardly therefrom; a valve cap disposed around and releasably enclosing said valve handle, said cap comprising a self-supporting hollow shell spaced outwardly of said valve handle and open at one end thereof, said one end abutting said cylinder body in the region of said valve handle, and defining a plurality of configured notches disposed about and communicating with the open end of the cap; the valve cap further including a spring generally centrally disposed within said shell adjacent the opposite end thereof and extending toward said open end, spring retaining means securing one end of said spring to said shell at said opposite end and a valve handle pusher plate secured tO the free end of said spring; and a collar member attached to said cylinder body and encircling said valve portion, the collar member including an upwardly extending flange portion shaped to receive the valve cap therein and supporting a plurality of said retainer pins extending inwardly therefrom to releasably engage corresponding ones of said notches, whereby said cap is releasably retained centered around said valve handle to protect the same from damage.
Claim 5
Dependent Claim
210 words
An improved fluid cylinder assembly which comprises, in combination: a fluid cylinder body having at least a portion of a valve, including a valve handle, extending outwardly therefrom; a valve cap disposed around and releasably enclosing said valve handle, said cap comprising a self-supporting hollow shell spaced outwardly of said valve handle and open at one end thereof, said one end abutting said cylinder body in the region of said valve handle, and defining a plurality of configured notches disposed about and communicating with the open end of the cap; the valve cap further including a spring generally centrally disposed within said shell adjacent the opposite end thereof and extending toward said open end, spring retaining means securing one end of said spring to said shell at said opposite end and a valve handle pusher plate secured tO the free end of said spring; and a collar member attached to said cylinder body and encircling said valve portion, the collar member including an upwardly extending flange portion shaped to receive the valve cap therein and supporting a plurality of said retainer pins extending inwardly therefrom to releasably engage corresponding ones of said notches, whereby said cap is releasably retained centered around said valve handle to protect the same from damage.
Claim 6
Dependent Claim
38 words
The improved assembly of claim 3 wherein said flange portion has a trough portion therein, said trough portion being so configured and having a depth sufficient to receive said valve cap during attachment thereof to the collar member.
Claim 7
Dependent Claim
40 words
The improved fluid cylinder assembly of claim 3 wherein the cylinder body has a threaded neck portion, and wherein the collar member has at least a portion of the inner surface thereof threaded for matingly engaging said threaded neck portion.
Claim 8
Dependent Claim
192 words
An improved protective cap for a fluid cylinder containing a valve handle extending outwardly from the cylinder body, which cap comprises: a self-supporting hollow shell adapted to be releasably secured around said handle in spaced relation to protect the same, said cap being open at one end thereof and defining at said open end a configured notch adapted to releasably receive a retainer pin in a member attached to the cylinder body; a first spring generally centrally disposed within said shell adjacent the opposite end thereof and extending towards said open end; spring retaining means securing one end of said spring to said shell; valve handle pusher means secured to the free end of said spring and adapted to releasably secure said cap to said cylinder through said pin and notch; and a second spring generally annularly disposed within said shell adjacent the inner surface and said open end thereof, with one end of said second spring secured to said shell and the opposite end disposed in said notch, whereby said two springs cooperate to releasably lock said pin in place in said notch when said cap is secured around said handle.
Claim 9
Dependent Claim
192 words
An improved protective cap for a fluid cylinder containing a valve handle extending outwardly from the cylinder body, which cap comprises: a self-supporting hollow shell adapted to be releasably secured around said handle in spaced relation to protect the same, said cap being open at one end thereof and defining at said open end a configured notch adapted to releasably receive a retainer pin in a member attached to the cylinder body; a first spring generally centrally disposed within said shell adjacent the opposite end thereof and extending towards said open end; spring retaining means securing one end of said spring to said shell; valve handle pusher means secured to the free end of said spring and adapted to releasably secure said cap to said cylinder through said pin and notch; and a second spring generally annularly disposed within said shell adjacent the inner surface and said open end thereof, with one end of said second spring secured to said shell and the opposite end disposed in said notch, whereby said two springs cooperate to releasably lock said pin in place in said notch when said cap is secured around said handle.
Claim 10
Dependent Claim
208 words
An improved fluid cylinder assembly which comprises, in combination: a fluid cylinder body having a threaded neck portion and at least a portion of a valve, including a valve handle, extending outwardly therefrom; a collar member having at least a portion of the inner surface thereof threaded and matingly engaging said neck portion, said collar member encircling the valve portion and having a flange portion extending upwardly from said neck portion, and flange portion having a plurality of inwardly extending retainer pins secured thereto; a valve cap disposed around and releasably enclosing said valve handle, said cap comprising a self-supporting hollow shell spaced outwardly of said valve handle and open at one end thereof, said one end having a plurality of configured notches for releasably receiving corresponding ones of said retainer pins, said one end being configured to be received within said flange portion, a spring generally centrally disposed within said shell adjacent the opposite end thereof and extending towards said open end, and spring retaining means securing one end of said spring to said shell at said opposite end, the free end of said spring being adapted for engaging said valve to releasably retain said cap centered around said valve handle to protect the same from damage.
Claim 11
Dependent Claim
208 words
An improved fluid cylinder assembly which comprises, in combination: a fluid cylinder body having a threaded neck portion and at least a portion of a valve, including a valve handle, extending outwardly therefrom; a collar member having at least a portion of the inner surface thereof threaded and matingly engaging said neck portion, said collar member encircling the valve portion and having a flange portion extending upwardly from said neck portion, and flange portion having a plurality of inwardly extending retainer pins secured thereto; a valve cap disposed around and releasably enclosing said valve handle, said cap comprising a self-supporting hollow shell spaced outwardly of said valve handle and open at one end thereof, said one end having a plurality of configured notches for releasably receiving corresponding ones of said retainer pins, said one end being configured to be received within said flange portion, a spring generally centrally disposed within said shell adjacent the opposite end thereof and extending towards said open end, and spring retaining means securing one end of said spring to said shell at said opposite end, the free end of said spring being adapted for engaging said valve to releasably retain said cap centered around said valve handle to protect the same from damage.
Claim 12
Dependent Claim
143 words
Protective apparatus for a pressurized fluid cylinder having a valve mechanism extending outwardly from the cylinder body adjacent a threaded neck portion thereof, said apparatus comprising in combination; an adapter for affixing to the cylinder body, said adapter comprising a circular collar having interior threads for engaging the threaded neck portion, the collar encircling the valve mechanism and including an upwardly extending flange portion supporting a plurality of inwardly extending retainer pins for releasably retaining a protective cap thereon; and a protective cap for releasably attaching to said adapter comprising a self-supporting hollow shell open at one end and defining thereat a plurality of configured notches for releasably engaging corresponding ones of said retainer pins, said cap also containing a biasing spring for bearing against the cylinder and urging the cap outwardly from the cylinder against the retaining means in a locked position.
Claim 13
Dependent Claim
143 words
Protective apparatus for a pressurized fluid cylinder having a valve mechanism extending outwardly from the cylinder body adjacent a threaded neck portion thereof, said apparatus comprising in combination; an adapter for affixing to the cylinder body, said adapter comprising a circular collar having interior threads for engaging the threaded neck portion, the collar encircling the valve mechanism and including an upwardly extending flange portion supporting a plurality of inwardly extending retainer pins for releasably retaining a protective cap thereon; and a protective cap for releasably attaching to said adapter comprising a self-supporting hollow shell open at one end and defining thereat a plurality of configured notches for releasably engaging corresponding ones of said retainer pins, said cap also containing a biasing spring for bearing against the cylinder and urging the cap outwardly from the cylinder against the retaining means in a locked position.
References Cited (Backward Citations)
US616542A
Cited
US1351964A
Cited
US1887700A
Cited
US1833924A
Cited
US1948953A
Cited
US2216717A
Cited
US2590270A
Cited
US2805795A
Cited
US2838064A
Cited
GB879330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |