US4819685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubeless tire valve
Assignee: Schrader Bridgeport International Inc
•
Filing: 1988-04-21
•
Granted: 1989-04-11
•
Expires: 2008-04-21
Abstract
Abstract A tubeless tire valve has a one piece, integral valve body having a central passageway formed therein, wherein the passageway is formed of upper, central and lower regions. A one piece, integral valve pin has a head sized to fit in the upper region, a first shank extending away from the head to an enlargement, and a second shank extending away from the enlargement. The pin enlargement has a maximum dimension larger than the central region to create an interference fit therewith, and the maximum dimension is selected such that the enlargement can be forced through the central region. A resilient internal gasket is mounted on the second shank to seal the central passageway.
Inventors
- 👤 Ezio Pagani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:18
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/20; B; B60; B60C; B60C29/00; B60C29/02; Y; Y10; Y10S; Y10S152/00; Y10S152/11; Y10T; Y10T137/00; Y10T137/3584; Y10T137/3724
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
190 words
A tire valve comprising: a one-piece, integral valve body having a central passageway formed therein, said passageway defining an upper region, a central region and a lower region, said central region being smaller in cross-sectional dimension than the upper and lower regions and bounded by an upwardly facing upper shoulder and a downwardly facing lower shoulder; a one-piece, integral valve pin having a head sized to fit within the upper region, a first shank extending away from the head to an enlargement, and a second shank extending away from the enlargement, said first shank sized to slide in the central region, said enlargement having a maximum dimension larger than the central region to create an interference fit therewith, said maximum dimension selected such that the enlargement can be forced through the central region into the lower region of the central passageway; and a resilient internal gasket mounted over the second shank and sized to bear against the lower shoulder to seal the central passageway, said internal gasket adapted to be mounted on the second shank in the lower region after the second shank has been passed through the central region.
Claim 2
Dependent Claim
190 words
A tire valve comprising: a one-piece, integral valve body having a central passageway formed therein, said passageway defining an upper region, a central region and a lower region, said central region being smaller in cross-sectional dimension than the upper and lower regions and bounded by an upwardly facing upper shoulder and a downwardly facing lower shoulder; a one-piece, integral valve pin having a head sized to fit within the upper region, a first shank extending away from the head to an enlargement, and a second shank extending away from the enlargement, said first shank sized to slide in the central region, said enlargement having a maximum dimension larger than the central region to create an interference fit therewith, said maximum dimension selected such that the enlargement can be forced through the central region into the lower region of the central passageway; and a resilient internal gasket mounted over the second shank and sized to bear against the lower shoulder to seal the central passageway, said internal gasket adapted to be mounted on the second shank in the lower region after the second shank has been passed through the central region.
Claim 3
Dependent Claim
43 words
The invention of claim 1 further comprising: a coil spring positioned around the first shank to bear on the upper shoulder of the valve body and the head of the valve pin to bias the internal gasket into engagement with the lower shoulder.
Claim 4
Dependent Claim
37 words
The tire valve of claim 1 wherein the enlargement defines an upwardly tapering upper surface and a flat lower surface oriented transverse to the lower shank to bear aganst a corresponding oriented face of the internal gasket.
Claim 5
Dependent Claim
26 words
The invention of claim 1 wherein the head of the valve pin is sized too large to pass through the central region of the valve body.
References Cited (Backward Citations)
US1313554A
Cited
US2033512A
Cited
US2106671A
Cited
US2255932A
Cited
US2240129A
Cited
US2276502A
Cited
US2272634A
Cited
US2269367A
Cited
US2272548A
Cited
DE800108C
Cited
DE802791C
Cited
US2844183A
Cited
US2966191A
Cited
DE1020885B
Cited
US2862515A
Cited
US2968333A
Cited
US3033263A
Cited
US3429330A
Cited
GB1044423A
Cited
BE672880A
Cited
US3207172A
Cited
US3396743A
Cited
FR1576079A
Cited
US3489166A
Cited
US3712326A
Cited
US3741267A
Cited
GB1339756A
Cited
DE2303646A1
Cited
GB1376351A
Cited
FR2280003A1
Cited
US3967639A
Cited
DE2639571A1
Cited
US4046163A
Cited
FR2340493A1
Cited
US4064923A
Cited
US4294301A
Cited
US4077456A
Cited
FR2383374A1
Cited
CA1082580A
Cited
US4340080A
Cited
FR2385548A1
Cited
US4097075A
Cited
FR2406531A2
Cited
US4171119A
Cited
FR2417044A2
Cited
US4275756A
Cited
US4425578A
Cited
US4538658A
Cited
US4506695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |