Patent US3421535A successfully refreshed from Google Patents.
US3421535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mechanism
Assignee: Goodyear Tire and Rubber Co
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Filing: 1966-05-09
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Granted: 1969-01-14
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Hawkes
- 👤 Faust S D Avello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:40
CPC Classifications
B; B60; B60C; B60C29/00; B60C29/007; Y; Y10; Y10T; Y10T137/00; Y10T137/3584; Y10T137/3786; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10522; Y10T152/10576; Y10T152/10594; Y10T152/10603
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
VALVE MECHANISM FOR INFLATING BOTH CHAMBERS OF A TIRE HAVING INNER AND OUTER CHAMBERS, COMPRISING A VALVE STEM WITHIN WHICH IS AN INFLATION PASSAGE FOR DELIVERING AIR TO SAID CHAMBERS, A FIRST PORT IN SAOD STEM COMMUNICATING WITH SAID INFLATION PASSAGE AND THE INNER CHAMBER OF SUCH A TIRE, A SECOND PORT IN SAID STEM IN COMMUNICATION WITH SAID PASSAGE AND WITH THE OUTER CHAMBER THEREOF, A FIRST VALVE MOUNTED IN SAID PASSAGE AT THE INNER END THEREOF WHICH WHEN CLOSED CUTS OFF COMMUNICATION BETWEEN SAID PORT AND PASSAGE, A NORMALLY CLOSED SECOND VALVE AT THE OUTER END OF SAID PASSAGE CONTROLLING THE FLOW OF AIR INTO AND OUT OF SAID PASSAGE, SAID SECOND VALVE HAVING AN EXTENSION MOUNTED THEREON AT ITS INNER END PROVIDED WITH SEALING MEANS ENGAGING SAID PASSAGE WALL IN ALL OPERABLE POSITIONS OF SAID SECOND VALVE TO CUT OFF COMMUNICATION BETWEEN SAID VALVES AND BETWEEN SAID CHAMBERS EVEN IF SAID VALVES SHOULD OPEN, SAID SECOND VALVE BEING REMOVABLE WITH ITS EXTENSION TO PERMIT SIMULTANEOUS INFLATION OF BOTH CHAMBES THROUGH SAID PASSAGE.
Claim 2
Dependent Claim
175 words
VALVE MECHANISM FOR INFLATING BOTH CHAMBERS OF A TIRE HAVING INNER AND OUTER CHAMBERS, COMPRISING A VALVE STEM WITHIN WHICH IS AN INFLATION PASSAGE FOR DELIVERING AIR TO SAID CHAMBERS, A FIRST PORT IN SAOD STEM COMMUNICATING WITH SAID INFLATION PASSAGE AND THE INNER CHAMBER OF SUCH A TIRE, A SECOND PORT IN SAID STEM IN COMMUNICATION WITH SAID PASSAGE AND WITH THE OUTER CHAMBER THEREOF, A FIRST VALVE MOUNTED IN SAID PASSAGE AT THE INNER END THEREOF WHICH WHEN CLOSED CUTS OFF COMMUNICATION BETWEEN SAID PORT AND PASSAGE, A NORMALLY CLOSED SECOND VALVE AT THE OUTER END OF SAID PASSAGE CONTROLLING THE FLOW OF AIR INTO AND OUT OF SAID PASSAGE, SAID SECOND VALVE HAVING AN EXTENSION MOUNTED THEREON AT ITS INNER END PROVIDED WITH SEALING MEANS ENGAGING SAID PASSAGE WALL IN ALL OPERABLE POSITIONS OF SAID SECOND VALVE TO CUT OFF COMMUNICATION BETWEEN SAID VALVES AND BETWEEN SAID CHAMBERS EVEN IF SAID VALVES SHOULD OPEN, SAID SECOND VALVE BEING REMOVABLE WITH ITS EXTENSION TO PERMIT SIMULTANEOUS INFLATION OF BOTH CHAMBES THROUGH SAID PASSAGE.
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |