US4927397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Raft inflation valve
Assignee: Individual
•
Filing: 1989-02-23
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Granted: 1990-05-22
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Expires: 2009-02-23
Abstract
Abstract A raft inflation valve assembly comprising a tubular valve body having an air passageway therethrough and a plunger member adapted for selectively preventing or enabling air flow through the valve body. The plunger member is received in the valve body and has a relatively centered, upwardly positioned closed operating state and a relatively skewed, downwardly positioned open operating state.
Inventors
- 👤 Gregory H. Yeager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:32
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/24; Y; Y10; Y10T; Y10T137/00; Y10T137/3584; Y10T137/374; Y10T137/3755; Y10T137/3771
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
184 words
A raft inflation valve assembly comprising: (a) a tubular body member adapted to be mounted in fixed relationship with a raft bladder and having a central bore defined by an interior surface having an upper opening exterior of said raft bladder and a lower opening interior of said raft bladder; said tubular body member comprising a first annular lip surface defining a portion of said central bore and a second annular lip surface defining a portion of said central bore; (b) a plunger member for coacting with said valve body member, for alternately placing said inflation valve assembly in an open state and a closed state; said plunger member being received in said tubular body member bore and having a shaft portion having a first end which is adapted to engage said first lip portion for maintaining said inflation valve assembly in said open state and having a base portion which is adapted to engage said second lip portion for placing said inflation valve assembly in said closed state; and (c) biasing means for biasing said plunger member upwardly within said valve body bore.
Claim 2
Dependent Claim
184 words
A raft inflation valve assembly comprising: (a) a tubular body member adapted to be mounted in fixed relationship with a raft bladder and having a central bore defined by an interior surface having an upper opening exterior of said raft bladder and a lower opening interior of said raft bladder; said tubular body member comprising a first annular lip surface defining a portion of said central bore and a second annular lip surface defining a portion of said central bore; (b) a plunger member for coacting with said valve body member, for alternately placing said inflation valve assembly in an open state and a closed state; said plunger member being received in said tubular body member bore and having a shaft portion having a first end which is adapted to engage said first lip portion for maintaining said inflation valve assembly in said open state and having a base portion which is adapted to engage said second lip portion for placing said inflation valve assembly in said closed state; and (c) biasing means for biasing said plunger member upwardly within said valve body bore.
Claim 3
Dependent Claim
25 words
The invention of claim 1 wherein said plunger member comprises gasket means thereon for sealingly engaging said second lip portion of said valve body member.
Claim 4
Dependent Claim
13 words
The invention of claim 1 wherein said biasing means comprises a coil spring.
Claim 5
Dependent Claim
28 words
The invention of claim 3 wherein said coil spring is disposed between the lower end of said plunger member and said lower opening of said valve body bore.
Claim 6
Dependent Claim
36 words
The invention of claim 1 wherein said valve body member comprises an upper exterior threaded portion and further comprising a threaded cap screwingly, sealingly engageable with said upper threaded end portion of said valve body member.
Claim 7
Dependent Claim
80 words
A raft inflation valve assembly comprising: (a) a tubular valve body means for providing an air passageway therethrough; and (b) plunger means for selectively preventing or enabling air flow through said valve body means received in said valve body means and having a relatively centered, upwardly positioned closed operating state and having a relatively skewed, downwardly positioned open operating state; wherein said tubular valve body means comprises annular lip means for maintaining said plunger means in said open operating state.
Claim 8
Dependent Claim
80 words
A raft inflation valve assembly comprising: (a) a tubular valve body means for providing an air passageway therethrough; and (b) plunger means for selectively preventing or enabling air flow through said valve body means received in said valve body means and having a relatively centered, upwardly positioned closed operating state and having a relatively skewed, downwardly positioned open operating state; wherein said tubular valve body means comprises annular lip means for maintaining said plunger means in said open operating state.
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) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |