US3073621A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air suspension systems for vehicles
Assignee: DOORNE S AUTOMOBIELFABRIEK N V
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Filing: 1961-02-02
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Granted: 1963-01-15
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Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 Johannes H Wedzinga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:12
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/02; F16F9/04; F16F9/0418; B; B60; B60G; B60G11/00; B60G11/26; B60G11/27; B60G2200/00; B60G2200/30; B60G2200/31; B60G2202/00; B60G2202/20; B60G2202/24; B60G2202/242; B60G2204/00; B60G2204/40; B60G2204/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN AN AIR SUSPENSION SYSTEM FOR VEHICLES HAVING WHEELS AND HAVING A LONGITUDINALLY EXTENDING BODY, THE LOAD OF WHICH MAY VARY CONSIDERABLY; A PLURALITY OF FIRST ENTIRELY CLOSED, AIR-FILLED ELASTIC CONTAINERS, SAID CONTAINERS EXTENDING IN LONGITUDINAL DIRECTION OF SAID VEHICLE BODY, PIVOTALLY MOUNTED LEVERS UPON WHICH SAID CONTAINERS ARE MOUNTED, SAID LEVERS CARRYING SAID WHEELS, AND A PLURALITY OF COMPRESSION MEMBERS EXTENDING LONGITUDINALLY ON SAID VEHICLE BODY, SAID COMPRESSION MEMBERS BEING ARRANGED TO COOPERATE WITH SAID CONTAINERS BY COMPRESSING SAME, SAID COMPRESSION MEMBERS HAVING CAM-SHAPED SURFACES SLOPED GRADUALLY AND EXTENDING LONGITUDINALLY THEREOF, SAID SURFACES PROVIDING VARIABLE CONTACT AREAS BETWEEN SAID CONTAINERS AND SAID COMPRESSION MEMBERS, SAID CONTACT AREAS INCREASING AND DECREASING DIRECTLY PROPORTIONALLY WITH INCREASE AND DECREASE OF LOADS, RESPECTIVELY, OF SAID VEHICLE, AND SAID CAM-SHAPED SURFACES HAVING CONTOURS FOR NO-LOAD CONDITIONS, SAID CONTOURS PROVIDING FOR CONTACT AREAS UNDER NO-LOAD CONDITIONS HAVING APPROXIMATELY ONE-THIRD THE SIZE OF SAID CONTACT AREAS UNDER FULL LOAD CONDITIONS.
Claim 2
Dependent Claim
154 words
IN AN AIR SUSPENSION SYSTEM FOR VEHICLES HAVING WHEELS AND HAVING A LONGITUDINALLY EXTENDING BODY, THE LOAD OF WHICH MAY VARY CONSIDERABLY; A PLURALITY OF FIRST ENTIRELY CLOSED, AIR-FILLED ELASTIC CONTAINERS, SAID CONTAINERS EXTENDING IN LONGITUDINAL DIRECTION OF SAID VEHICLE BODY, PIVOTALLY MOUNTED LEVERS UPON WHICH SAID CONTAINERS ARE MOUNTED, SAID LEVERS CARRYING SAID WHEELS, AND A PLURALITY OF COMPRESSION MEMBERS EXTENDING LONGITUDINALLY ON SAID VEHICLE BODY, SAID COMPRESSION MEMBERS BEING ARRANGED TO COOPERATE WITH SAID CONTAINERS BY COMPRESSING SAME, SAID COMPRESSION MEMBERS HAVING CAM-SHAPED SURFACES SLOPED GRADUALLY AND EXTENDING LONGITUDINALLY THEREOF, SAID SURFACES PROVIDING VARIABLE CONTACT AREAS BETWEEN SAID CONTAINERS AND SAID COMPRESSION MEMBERS, SAID CONTACT AREAS INCREASING AND DECREASING DIRECTLY PROPORTIONALLY WITH INCREASE AND DECREASE OF LOADS, RESPECTIVELY, OF SAID VEHICLE, AND SAID CAM-SHAPED SURFACES HAVING CONTOURS FOR NO-LOAD CONDITIONS, SAID CONTOURS PROVIDING FOR CONTACT AREAS UNDER NO-LOAD CONDITIONS HAVING APPROXIMATELY ONE-THIRD THE SIZE OF SAID CONTACT AREAS UNDER FULL LOAD CONDITIONS.
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |