US5280888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient buffer made of metal wire
Assignee: Jacques Dubois SA
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Filing: 1992-03-24
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Granted: 1994-01-25
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Expires: 2012-03-24
Abstract
Abstract The buffer is preferably made by a method comprising the step of making a substantially cylindrical preform by helically winding a strip made of resilient metal wire in at least two layers of opposite pitch, and the step of compressing the preform axially.
Inventors
- 👤 Louis Brandener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:19
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F01N13/1827; F16; F16F; F16F1/00; F16F1/36; F16F1/362
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
40 words
A resilient buffer, comprising a series of turns of resilient knitted metal wire in at least two helical layers of opposite pitch and being axially compressed so as to entangle the metal wire sufficiently that the buffer is permanently compressed.
Claim 2
Dependent Claim
40 words
A resilient buffer, comprising a series of turns of resilient knitted metal wire in at least two helical layers of opposite pitch and being axially compressed so as to entangle the metal wire sufficiently that the buffer is permanently compressed.
Claim 3
Independent Claim
57 words
A method of making a resilient buffer comprising the step of making a substantially cylindrical preform by helically winding a strip made of resilient knitted metal wire in at least two layers of opposite pitch, and the step of compressing the preform axially so as to entangle the metal wire sufficiently that the buffer is permanently compressed.
Claim 4
Independent Claim
57 words
A method of making a resilient buffer comprising the step of making a substantially cylindrical preform by helically winding a strip made of resilient knitted metal wire in at least two layers of opposite pitch, and the step of compressing the preform axially so as to entangle the metal wire sufficiently that the buffer is permanently compressed.
Claim 5
Dependent Claim
14 words
A method according to claim 2, wherein the helical winding includes turns that overlap.
Claim 6
Dependent Claim
24 words
A method according to claim 2, wherein the width of the strip is substantially equal to the height of the buffer after axial compression.
References Cited (Backward Citations)
US2755079A
Cited
GB836519A
Cited
US3186701A
Cited
SU1298446A1
Cited
FR2626041A1
Cited
US5052404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-24 | 1997-07-26 | 1998-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-24 | 2001-07-26 | 2002-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-24 | 2005-07-26 | 2006-01-25 | $7700.00 | Window Closed / Lapsed |