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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
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Granted: 1971-11-30
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Expires: 1990-05-13
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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

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