US4619137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement of a pressure-measuring element
Assignee: Dr Ing HCF Porsche AG
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Filing: 1985-05-24
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Granted: 1986-10-28
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Expires: 2005-05-24
Abstract
Abstract An arrangement of a pressure-measuring element for an air pressure control system in a vehicle, in which the measuring element is acted upon by air pressure in the tire hollow space and cooperates with a pick-up fixed at the axle. The pressure-measuring element is coordinated to an air chamber provided on the side of the rim which is in communication with the tire hollow space by way of at least one air flow passage.
Inventors
- 👤 Helmuth Bott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:35
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/02; B60C23/04; B60C23/0491; B60C23/0498; B60C23/001; B60C23/003; B60C23/00309; B60C23/00318; B60C23/0408; B60C23/0422; B60C23/0427; B60C23/043; B60C23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
An arrangement of a pressure-measuring element for an air pressure control system on a vehicle wheel having a rim, in which the measuring element is acted upon by air pressure in the hollow space of the tire and cooperates with a fixedly arranged pick-up means, an air chamber means provided on the rim side which is in communication with the tire hollow space by way of at least one air through-flow opening means, the pressure-measuring element being arranged in a closure wall of the air chamber means, said closure wall extending at least approximately parallelly with respect to one of fixed wheel hub and wheel axis of rotation, the pick-up means being held in the fixed wheel hub disposed opposite the measuring element, and an annular space separating the pick-up means from the measuring element, said annular space being closed-off between the stationary hub and the closure wall by way of an inner sealing means at the wheel and by way of a cap means adapted to be mounted from the outside.
Claim 2
Dependent Claim
172 words
An arrangement of a pressure-measuring element for an air pressure control system on a vehicle wheel having a rim, in which the measuring element is acted upon by air pressure in the hollow space of the tire and cooperates with a fixedly arranged pick-up means, an air chamber means provided on the rim side which is in communication with the tire hollow space by way of at least one air through-flow opening means, the pressure-measuring element being arranged in a closure wall of the air chamber means, said closure wall extending at least approximately parallelly with respect to one of fixed wheel hub and wheel axis of rotation, the pick-up means being held in the fixed wheel hub disposed opposite the measuring element, and an annular space separating the pick-up means from the measuring element, said annular space being closed-off between the stationary hub and the closure wall by way of an inner sealing means at the wheel and by way of a cap means adapted to be mounted from the outside.
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) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |