US3687440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomer damping spring
Assignee: RESSORTS AUTO AMORTISSEURS SOC
•
Filing: 1970-07-24
•
Granted: 1972-08-29
•
Expires: 1990-07-24
Abstract
Abstract A damping spring comprising an elastomer composition received in a deformable enclosure. The spring comprises an enclosure embodied by annular elements 1, 1'' which are placed one above another and which have a thin flexible outer part 1a and a rigid thick central part 2 whose edge bears on the substantially linear surface of a plug B, B'' or of an intermediate disc 3 on which it can oscillate.
Inventors
- 👤 Jean Jarret
- 👤 Jacques Jarret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:00
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/373; F16F1/3732; F16F1/42; F16F1/422; F16F3/00; F16F3/08; F16F3/087; F16F3/093; F16F2236/00; F16F2236/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
71 words
A damping spring which is comprised of: a ring element haviNg a thin flexible outer portion and thick rigid inner leg portions forming therein an elastomer receiving zone; an elastomer provided in said zone; and closure means including end plugs having a substantially linear surface, an end plug being provided for the leg portion of a ring element and contacts said leg portion at said linear surface to permit oscillation thereof.
Claim 2
Dependent Claim
71 words
A damping spring which is comprised of: a ring element haviNg a thin flexible outer portion and thick rigid inner leg portions forming therein an elastomer receiving zone; an elastomer provided in said zone; and closure means including end plugs having a substantially linear surface, an end plug being provided for the leg portion of a ring element and contacts said leg portion at said linear surface to permit oscillation thereof.
Claim 3
Dependent Claim
22 words
The damping spring as defined in claim 1, wherein a plurality of ring elements are provided to oscillate relatively to one another.
Claim 4
Dependent Claim
49 words
The damping spring as defined in claim 2 wherein a centering disc is provided between two consecutive ring elements oscillating relative to one another, said disc having two ridges, each ridge containing an edge of a leg portion of said consecutive ring elements about a linear oscillation surface thereof.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |