Patent US3379112A successfully refreshed from Google Patents.
US3868097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid spring
Assignee: Tayco Developments Inc
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Filing: 1968-09-25
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Granted: 1975-02-25
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Expires: 1988-09-25
Abstract
Abstract An improved structure and method of assembly for all pressure fluid systems and adapted particularly to the manufacture of low cost high pressure liquid springs, spring shocks and apparatus.
Inventors
- 👤 Paul Hollis Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:17
CPC Classifications
F; F16; F16F; F16F5/00; F16F9/00; F16F9/32; F16F9/36; F16F9/362
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
In a shock absorber having a housing, a piston means slidably disposed within said housing, seal means for said housing and pisTon means and end closure means associated with said piston, housing and seal means, the improvement comprising means for restraining longitudinal movement between said housing and said end closure means including a formed crimped section acting as a reinforced structure for said housing and a reduced section on said end closure means wherein the reinforced structure acts as a lever against the reduced section to prevent relative longitudinal movement of said housing and closure means.
Claim 2
Dependent Claim
96 words
In a shock absorber having a housing, a piston means slidably disposed within said housing, seal means for said housing and pisTon means and end closure means associated with said piston, housing and seal means, the improvement comprising means for restraining longitudinal movement between said housing and said end closure means including a formed crimped section acting as a reinforced structure for said housing and a reduced section on said end closure means wherein the reinforced structure acts as a lever against the reduced section to prevent relative longitudinal movement of said housing and closure means.
Claim 3
Dependent Claim
41 words
The shock absorber of claim 1 wherein said reduced section on said end closure means is conical and wherein the reinforced structure acts as a lever against the reduced section to prevent relative longitudinal movement between said housing and closure means.
Claim 4
Dependent Claim
45 words
The shock absorber of claim 1 wherein said reduced section on said end closure is a stepped reduced section wherein the reinforced structure acts as a lever against the step in said reduced section to prevent relative longitudinal movement between said housing and closure means.
Claim 5
Dependent Claim
40 words
The shock absorber of claim 1 wherein said conical section has a sharp engagement edge formed thereon wherein the reinforced structure acts as a lever against the sharp engagement edge formed in said reduced section to prevent relative longitudinal movement.
Claim 6
Dependent Claim
72 words
The shock absorber of claim 1 wherein said formed crimped section for said housing is inclined between about 35* and 45* relative to the longitudinal walls of said housing and wherein said reduced section on said end closure means has a recess formed therein producing a sharp edge wherein the reinforced structure acts as a lever against the edge of the recess formed in said reduced section to prevent relative longitudinal movement.
Claim 7
Dependent Claim
70 words
The shock absorber of claim 1 wherein said formed crimped section has a bent radius about 1 1/2 times the thickness of the longitudinal walls for said housing and wherein said reduced section on said end closure means has a recess formed therein producing a radial thread profile wherein the reinforced structure acts as a lever against the radial thread profile formed in the reduced section to prevent longitudinal movement.
Claim 8
Dependent Claim
53 words
The shock absorber of claim 1 wherein said reduced section has a recess formed therein producing a radial thread profile having a resulting line of force directed to the reinforced structure wherein the reinforced structure acts as a lever against radial thread profile formed in the reduced section to prevent relative longitudinal movement.
Claim 9
Dependent Claim
52 words
The shock absorber of claim 1 wherein said reduced section is provided with a sharp edge thereon shaped so as to substantially direct a line of force through said reinforced structure wherein the reinforced structure acts as a lever against the sharp edge of the reduced section to prevent relative longitudinal movement.
Claim 10
Dependent Claim
57 words
The shock absorber of claim 1 wherein said reduced section on said end closure provides a profile substantially like a screw thread and is arranged to provide a line of force through said reinforced structure wherein the reinforced structure acts as a lever against the screw threadlike profile of said reduced section to prevent relative longitudinal movement.
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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |