US3141655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy absorbing device
Assignee: Individual
•
Filing: 1961-12-05
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Granted: 1964-07-21
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Expires: 1981-12-05
Abstract
No abstract record available.
Inventors
- 👤 Fletcher N Platt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:42
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/14; E01F15/141; E01F15/003; E01F15/02; E01F15/04; E01F15/0461; E01F15/145; E01F15/146; E01F9/00; E01F9/60; E01F9/658; E01F9/673; E01F9/681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
AN ENERGY ABSORBING DEVICE OF DISSIPATING BY DEFORMATION UPON IMPACT AT LEAST A PORTION OF THE KINETIC ENERGY OF AN OBJECT MOVING OVER A SURFACE COMPRISING IN COMBINATION: (A) AN UPRIGHT NORMALLY CLOSED CONTAINER HAVING COAXIAL OUTER AND INNER DEFORMABLE WALLS, THE TRANSVERSE DIMENSION ACROSS SAID INNER DEFORMABLE WALL BEING SUFFICIENT TO PERMIT SUBSTANTIAL INWARD DEFORMATION THEREOF, (B) A CAP CONNECTED TO THE UPPER END OF THE OUTER DEFORMABLE WALL, (C) A CENTRAL ANCHOR MEMBER CONNECTED TO SAID CAP TO PREVENT AXIAL DISPLACEMENT OF THE CAP THEREFROM AND EXTENDING INTO SAID SURFACE AND ADAPTED TO HOLD SAID CONTAINER AGAINST SAID SURFACE, AND (D) FLUID MATERIAL FILLING THE CONTAINER BETWEEN THE OUTER AND INNER DEFORMABLE WALLS FOR ABSORBING ENERGY OF IMPACT OF A MOVING OBJECT, SAID MATERIAL BEING CAPABLE OF TRANSMITTING FORCES GENERALLY IN ALL DIRECTIONS SO THAT THE ENERGY ABSORBED THEREBY IS MOST EFFECTIVELY DISSIPATED.
Claim 2
Dependent Claim
145 words
AN ENERGY ABSORBING DEVICE OF DISSIPATING BY DEFORMATION UPON IMPACT AT LEAST A PORTION OF THE KINETIC ENERGY OF AN OBJECT MOVING OVER A SURFACE COMPRISING IN COMBINATION: (A) AN UPRIGHT NORMALLY CLOSED CONTAINER HAVING COAXIAL OUTER AND INNER DEFORMABLE WALLS, THE TRANSVERSE DIMENSION ACROSS SAID INNER DEFORMABLE WALL BEING SUFFICIENT TO PERMIT SUBSTANTIAL INWARD DEFORMATION THEREOF, (B) A CAP CONNECTED TO THE UPPER END OF THE OUTER DEFORMABLE WALL, (C) A CENTRAL ANCHOR MEMBER CONNECTED TO SAID CAP TO PREVENT AXIAL DISPLACEMENT OF THE CAP THEREFROM AND EXTENDING INTO SAID SURFACE AND ADAPTED TO HOLD SAID CONTAINER AGAINST SAID SURFACE, AND (D) FLUID MATERIAL FILLING THE CONTAINER BETWEEN THE OUTER AND INNER DEFORMABLE WALLS FOR ABSORBING ENERGY OF IMPACT OF A MOVING OBJECT, SAID MATERIAL BEING CAPABLE OF TRANSMITTING FORCES GENERALLY IN ALL DIRECTIONS SO THAT THE ENERGY ABSORBED THEREBY IS MOST EFFECTIVELY DISSIPATED.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |