US3659835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact kinetic energy absorber with automatic reset
Assignee: Individual
•
Filing: 1970-10-12
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Granted: 1972-05-02
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Expires: 1990-10-12
Abstract
Abstract In impact kinetic energy absorber with automatic reset in which the kinetic energy on impact is absorbed by forcing a plunger with an enlarged head through plastic material within a cylinder under pressure below the yield point of the plastic material so that said plastic material is in solid form and which has a resilient means operatively arranged between said plunger and said cylinder sufficiently loaded therebetween to force said plunger with enlarged head back through said plastic material in solid form to reset said impact absorber after impact and to absorb some kinetic energy on impact in addition to that absorbed by forcing said plunger through said plastic material.
Inventors
- 👤 Gerald H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:42
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/30; F16F9/303; F16F2224/00; F16F2224/02; F16F2224/025
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
In a device for absorbing kinetic energy of impact in which kinetic energy is absorbed by forcing a plunger with an enlarged head through plastic material in a cylinder under pressure below the yield point of the plastic material so the said plastic material is in its solid form except for that portion thereof forced to flow past said enlarged head during impact, the improvement which comprises resilient means operatively arranged between said plunger and said cylinder sufficiently loaded to force said plunger with said enlarged head back through said plastic material under pressure below its yield point so that said plastic material is in its solid form except that portion thereof flowing past said enlarged head as said resilient means forces said plunger back to its original position before impact.
Claim 2
Dependent Claim
131 words
In a device for absorbing kinetic energy of impact in which kinetic energy is absorbed by forcing a plunger with an enlarged head through plastic material in a cylinder under pressure below the yield point of the plastic material so the said plastic material is in its solid form except for that portion thereof forced to flow past said enlarged head during impact, the improvement which comprises resilient means operatively arranged between said plunger and said cylinder sufficiently loaded to force said plunger with said enlarged head back through said plastic material under pressure below its yield point so that said plastic material is in its solid form except that portion thereof flowing past said enlarged head as said resilient means forces said plunger back to its original position before impact.
Claim 3
Dependent Claim
16 words
In a device as defined in claim 1 in which said resilient means in a spring.
Claim 4
Dependent Claim
21 words
In a device as defined in claim 1 in which said resilient means is compressed between the plunger and said cylinder.
Claim 5
Dependent Claim
16 words
In a device as defined in claim 3 in which said resilient means is a spring.
References Cited (Backward Citations)
US2460116A
Cited
US3053526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |