US3603575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable vehicle-stabilizing unit
Assignee: Chapman Performance Products Inc
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Filing: 1969-07-07
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Granted: 1971-09-07
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Expires: 1989-07-07
Abstract
Abstract A combined coil spring and shock absorber unit for vehicle suspension wherein the compression of the coil spring may be adjustable relative to the shock absorber to properly level the suspended vehicle.
Inventors
- 👤 David F Arlasky
- 👤 Robert W Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:29
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/021
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
133 words
An adjustable suspension device including a hydraulic shock absorber having a body unit and an extendable piston rod with both the body unit and piston rod providing mounting hardware therefor wherein the improvement comprises: a. a hollow cylindrical housing for the cylinder of the shock absorber unit, with the housing having a portion of its outer surface threaded, b. restraining means fixedly carried by the distal end of the piston rod and movable therewith relative to said housing, c. an adjusting means threaded upon the threaded portion of said housing and movable axially thereover, and d. a coil spring embracing said housing and the piston rod and positioned between said restraining means and said adjusting means whereby its compression is determined by the adjustable axial movement of said adjusting means over said housing.
Claim 2
Dependent Claim
133 words
An adjustable suspension device including a hydraulic shock absorber having a body unit and an extendable piston rod with both the body unit and piston rod providing mounting hardware therefor wherein the improvement comprises: a. a hollow cylindrical housing for the cylinder of the shock absorber unit, with the housing having a portion of its outer surface threaded, b. restraining means fixedly carried by the distal end of the piston rod and movable therewith relative to said housing, c. an adjusting means threaded upon the threaded portion of said housing and movable axially thereover, and d. a coil spring embracing said housing and the piston rod and positioned between said restraining means and said adjusting means whereby its compression is determined by the adjustable axial movement of said adjusting means over said housing.
Claim 3
Dependent Claim
47 words
An adjustable suspension device as defined by claim 1 wherein said restraining means comprises a circular disc against which one end of the coil spring bears, said disc providing means whereby it is fixedly connected to the distal end of the piston rod of the shock absorber.
Claim 4
Dependent Claim
45 words
An adjustable suspension device of claim 1 further defined by having a portion of said housing externally threaded, and with said adjusting means comprising an internally threaded ring positionable axially of said housing with said ring compressing said coil spring against said fixed restraining means.
Claim 5
Dependent Claim
45 words
The adjustable suspension device of claim 3 wherein said restraining means comprises a circular disc against which one end of the coil spring bears, said disc providing means whereby it is fixedly connected to the distal end of the piston rod of the shock absorber.
Claim 6
Dependent Claim
45 words
The adjustable suspension device of claim 2 wherein said restraining disc provides a hub about which one end of said spring is coiled, and an enlarged collar against which said one end of said coil spring bears when it is compressed by said adjusting means.
Claim 7
Dependent Claim
51 words
The adjustable suspension device of claim 4 wherein said ring provides an enlarged collar upon which sits the opposite end of the coil spring, and which cooperates with said enlarged collar provided by said restraining disc to compress said coil spring therebetween as said disc is threaded axially over said housing.
References Cited (Backward Citations)
US2756045A
Cited
US3096084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |