US3112823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air spring pressure controls
Assignee: Chain Belt Co
•
Filing: 1961-06-27
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Granted: 1963-12-03
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Expires: 1981-06-27
Abstract
No abstract record available.
Inventors
- 👤 Musschoot Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:34
CPC Classifications
B; B65; B65G; B65G27/00; B65G27/10; B65G27/32; B65G27/16; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18344; Y10T74/18544; Y10T74/18552
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A VIBRATORY WORK PERFORMING SYSTEM, IN COMBINATION, AT LEAST ONE TUNED VIBRATORY ASSEMBLY INCLUDING AN AIR SPRING FOR TUNING CONTROL, SAID ASSEMBLY HAVING A RESONANT FREQUENCY THAT VARIES WITH THE INFLATION PRESSURE OF THE AIR SPRING, MEANS FOR APPLYING VIBRATORY FORCE TO THE ASSEMBLY AT A SUBSTANTIALLY CONSTANT FREQUENCY, AN AIR LINE CONNECTED TO SAID AIR SPRING, A FIRST PRESSURE REGULATOR IN SAID AIR LINE FOR MAINTAINING A MINIMUM PRESSURE IN SAID AIR SPRING AT WHICH SAID RESONANT FREQUENCY IS GREATER THAN SAID CONSTANT FREQUENCY, SAID FIRST REGULATOR HAVING A DIAPHRAGM AGAINST WHICH A CONTROL PRESSURE ACTS TO INCREASE THE OUTPUT PRESSURE OF THE REGULATOR, AND A SECOND REGULATOR ADAPTED TO CONTROL SAID CONTROL PRESSURE WHEREBY THE PRESSURE IN SAID AIR SPRING MAY BE INCREASED ABOVE SAID MINIMUM PRESSURE TO RAISE SAID RESONANT FREQUENCY.
Claim 2
Dependent Claim
135 words
IN A VIBRATORY WORK PERFORMING SYSTEM, IN COMBINATION, AT LEAST ONE TUNED VIBRATORY ASSEMBLY INCLUDING AN AIR SPRING FOR TUNING CONTROL, SAID ASSEMBLY HAVING A RESONANT FREQUENCY THAT VARIES WITH THE INFLATION PRESSURE OF THE AIR SPRING, MEANS FOR APPLYING VIBRATORY FORCE TO THE ASSEMBLY AT A SUBSTANTIALLY CONSTANT FREQUENCY, AN AIR LINE CONNECTED TO SAID AIR SPRING, A FIRST PRESSURE REGULATOR IN SAID AIR LINE FOR MAINTAINING A MINIMUM PRESSURE IN SAID AIR SPRING AT WHICH SAID RESONANT FREQUENCY IS GREATER THAN SAID CONSTANT FREQUENCY, SAID FIRST REGULATOR HAVING A DIAPHRAGM AGAINST WHICH A CONTROL PRESSURE ACTS TO INCREASE THE OUTPUT PRESSURE OF THE REGULATOR, AND A SECOND REGULATOR ADAPTED TO CONTROL SAID CONTROL PRESSURE WHEREBY THE PRESSURE IN SAID AIR SPRING MAY BE INCREASED ABOVE SAID MINIMUM PRESSURE TO RAISE SAID RESONANT FREQUENCY.
References Cited (Backward Citations)
US2985281A
Cited
US2984339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |