US4095822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension means
Assignee: Individual
•
Filing: 1976-09-24
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Granted: 1978-06-20
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Expires: 1996-09-24
Abstract
Abstract Suspension apparatus, particularly for use with motor vehicles, utilizing a pair of pistons. The upper ends of the piston rods are connected one to either side of the underbody of the vehicle. Each piston is displaceable within its respective fluid containing cylinder. The upper and lower chambers of one cylinder are respectively connected by fluid lines to the lower and upper chambers of the other cylinder. Each fluid line is connected by an auxiliary line through a separate metering valve to separate hydraulic accumulators.
Inventors
- 👤 Frank Warburton Thornhill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:28
CPC Classifications
B; B60; B60G; B60G21/00; B60G21/02; B60G21/06; B60G21/073; A; A61; A61G; A61G3/00; A61G3/006; A61G5/00; A61G5/10; A61G5/1078; B60G2202/00; B60G2202/10; B60G2202/15; B60G2202/154; B60G2204/00; B60G2204/80; B60G2204/82; B60G2204/83; B60G2204/8304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
Suspension apparatus comprising first and second pistons displaceable within first and second cylinders respectively, each piston having a rod and dividing respective cylinders into upper and lower chambers, either said piston rods or said cylinders being adapted for connection to a body to be stabilized, and fluid communicating lines between the upper chamber of said first cylinder and the lower chamber of said second cylinder and between the upper chamber of said second cylinder and the lower chamber of said first cylinder and wherein each of said fluid communicating lines is provided with an auxiliary line connected in turn through respective adjustable metering valves to respective hydraulic accumulators.
Claim 2
Dependent Claim
108 words
Suspension apparatus comprising first and second pistons displaceable within first and second cylinders respectively, each piston having a rod and dividing respective cylinders into upper and lower chambers, either said piston rods or said cylinders being adapted for connection to a body to be stabilized, and fluid communicating lines between the upper chamber of said first cylinder and the lower chamber of said second cylinder and between the upper chamber of said second cylinder and the lower chamber of said first cylinder and wherein each of said fluid communicating lines is provided with an auxiliary line connected in turn through respective adjustable metering valves to respective hydraulic accumulators.
References Cited (Backward Citations)
US3563566A
Cited
US3752497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |