US3582059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic shock absorber
Assignee: Individual
•
Filing: 1969-05-14
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Granted: 1971-06-01
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Expires: 1989-05-14
Abstract
Abstract A shock absorber comprising two telescoping sections each including a spring washer for supporting the ends of a helical compression spring made of wire coaxially wound about the shock absorber and freely movable relative to it, wherein the wire of the compression spring is provided with at least one rollershaped guide member coaxial with the wire and rotatable about it.
Inventors
- 👤 Christiaan Mihai Van Ooy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:56
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/024
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
A shock absorber comprising two telescoping sections each including a spring washer for supporting the ends of a helical compression spring made of wire coaxially wound about the shock absorber closely surrounding at least one of said telescoping sections and freely movable relative to it, wherein the wire of the compression spring is provided with roller guide means coaxial with the wire and rotatable about it for protecting said one telescoping section against wear and noise through contact with said compression spring.
Claim 2
Dependent Claim
82 words
A shock absorber comprising two telescoping sections each including a spring washer for supporting the ends of a helical compression spring made of wire coaxially wound about the shock absorber closely surrounding at least one of said telescoping sections and freely movable relative to it, wherein the wire of the compression spring is provided with roller guide means coaxial with the wire and rotatable about it for protecting said one telescoping section against wear and noise through contact with said compression spring.
Claim 3
Dependent Claim
35 words
A shock absorber according to claim 1, wherein said guide means is a cylindrical helically wound spring having a small internal diameter substantially equal to the thickness of the wire of said helical compression spring.
Claim 4
Dependent Claim
28 words
A shock absorber according to claim 2, wherein one end of the spring constituting the guide means is clamped between two end windings of said helical compression spring.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |