US3239236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equalizer suspension for vehicles
Assignee: Individual
•
Filing: 1963-08-27
•
Granted: 1966-03-08
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Expires: 1983-08-27
Abstract
No abstract record available.
Inventors
- 👤 Flowers Fred Fort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:45
CPC Classifications
B; B60; B60G; B60G21/00; B60G21/02; B60G21/06; B60G21/067; B60G5/00; B60G5/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE COMBINATON WITH THE UNDERFRAME OF A VEHICLE A PAIR OF AXLES, TWO LONGITUDINALLY SPACED PRESSURE CLYINDERS MOUNTED ON EACH SIDE OF THE UNDERFRAME ABOVE THE AXLES, A TUBE CONNECTING THE CYLINDERS ON EACH SIDE OF THE UNDERFRAME FOR THE INTERCHANGE OF PRESSURE FLUID BETWEEN SAID CYLINDERS, A SPRING HOUSING HAVING A FLANGE ELASTICALLY MOUNTED ON EACH AXLE, STOP BOLTS ON THE UNDERFRAME PASSING THROUGH SAID FLANGE, SAID HOUSING SLIDABLY EXTENDING INTO THE ADJACENT PRESSURE CYLINDER, A FREE PISTON IN EACH PRESSURE CYLINDER WITH A DEPENDING SKIRT SLIDABLE WITHIN THE HOUSING AND A SPRING CARRIED BY THE HOUSING AND SUPPORTING THE PISTON.
Claim 2
Dependent Claim
102 words
THE COMBINATON WITH THE UNDERFRAME OF A VEHICLE A PAIR OF AXLES, TWO LONGITUDINALLY SPACED PRESSURE CLYINDERS MOUNTED ON EACH SIDE OF THE UNDERFRAME ABOVE THE AXLES, A TUBE CONNECTING THE CYLINDERS ON EACH SIDE OF THE UNDERFRAME FOR THE INTERCHANGE OF PRESSURE FLUID BETWEEN SAID CYLINDERS, A SPRING HOUSING HAVING A FLANGE ELASTICALLY MOUNTED ON EACH AXLE, STOP BOLTS ON THE UNDERFRAME PASSING THROUGH SAID FLANGE, SAID HOUSING SLIDABLY EXTENDING INTO THE ADJACENT PRESSURE CYLINDER, A FREE PISTON IN EACH PRESSURE CYLINDER WITH A DEPENDING SKIRT SLIDABLE WITHIN THE HOUSING AND A SPRING CARRIED BY THE HOUSING AND SUPPORTING THE PISTON.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |