US3624764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration isolation mount and shock absorber
Assignee: United States Department of the Navy
•
Filing: 1970-05-13
•
Granted: 1971-11-30
•
Expires: 1990-05-13
Abstract
Abstract An elastomer vibration or sound attenuating material isolates two elastic-plastic spring shock absorbers. Expected operational sound or vibrational loads are essentially absorbed by the elastomer and for these loads the device acts as a low-frequency isolation mount. For mechanical shock forces beyond limits of sound or vibration the elastic-plastic springs responsively deform thereby absorbing and attenuating the shock force transmitted through it.
Inventors
- 👤 Kenneth W Goben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:37
CPC Classifications
F; F16; F16F; F16F3/00; F16F3/08; F16F3/10; F16F3/12; F16F7/00; F16F7/12; F16F7/121
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
178 words
A vibration isolation and shock-absorbing mount having individual elements separately reacting to vibration forces and shock forces, the shock forces being larger in magnitude than the vibration forces, comprising: vibration isolation means; a plurality of shock-absorbing means; said shock-absorbing means being connected to each other by said vibration isolation means whereby a vibration force having a predetermined maximum amplitude displaces said shock-absorbing means relative to each other; stop means limiting the displacement of said shock absorber means when a shock force of a magnitude greater than said maximum vibration force displaces said shock absorber means against said stop means whereby further absorption of energy by said vibration isolation means is prevented; said shock-absorbing means being deformed by the said shock force of a magnitude greater than said maximum vibration force thereby absorbing said shock force; said shock absorber and vibration mount having a central axis; said shock absorber means including at least two spaced-apart cylinders concentric with said central axis; and said space between said cylinders being filled with a viscoelastic material attached to each of said cylinders.
Claim 2
Dependent Claim
178 words
A vibration isolation and shock-absorbing mount having individual elements separately reacting to vibration forces and shock forces, the shock forces being larger in magnitude than the vibration forces, comprising: vibration isolation means; a plurality of shock-absorbing means; said shock-absorbing means being connected to each other by said vibration isolation means whereby a vibration force having a predetermined maximum amplitude displaces said shock-absorbing means relative to each other; stop means limiting the displacement of said shock absorber means when a shock force of a magnitude greater than said maximum vibration force displaces said shock absorber means against said stop means whereby further absorption of energy by said vibration isolation means is prevented; said shock-absorbing means being deformed by the said shock force of a magnitude greater than said maximum vibration force thereby absorbing said shock force; said shock absorber and vibration mount having a central axis; said shock absorber means including at least two spaced-apart cylinders concentric with said central axis; and said space between said cylinders being filled with a viscoelastic material attached to each of said cylinders.
Claim 3
Dependent Claim
15 words
The shock absorber of claim 1 wherein said shock absorber means is crushable expanded metal.
References Cited (Backward Citations)
US2998214A
Cited
US3082846A
Cited
US3144228A
Cited
US3130819A
Cited
US3265163A
Cited
US3437332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |