US3768781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorbing structure
Assignee: Energy Absorption Systems Inc
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Filing: 1972-03-30
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Granted: 1973-10-30
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Expires: 1992-03-30
Abstract
Abstract For use with an upright abutment, a belt at its ends is mounted on the abutment and has its intermediate portion disposed with the belt web vertical and cantilevered out from and spaced away from the abutment. Frangible energy absorbers are disposed between the belt and the abutment and are supported thereon. Vertical cleats reinforce the belt web. In large installations, vertical diaphragm walls of belts are used adjacent energy absorbers. Anchor cables may pass through and engage the diaphragms or belts.
Inventors
- 👤 L Meinzer
- 👤 R Larsen
- 👤 G Walker
- 👤 D Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:53
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/14; E01F15/141; E01F15/145; E01F15/146
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
147 words
A shock absorbing structure for use with an abutment upstanding from the ground comprising a flexible belt including a relatively thin relatively wide web, means for mounting the ends of said belt in a predetermined location relative to said abutment with the intermediate portion of said web extending from said abutment to a forward area remote from said abutment and disposed with the width thereof substantially in a vertical plane and cantilevered horizontally away from said abutment to leave an intervening space, a plurality of vertically extending diaphragm walls disposed in said space and arranged successively one behind the other between said abutment and said forward area, and a plurality of horizontally extending, frangible energy absorbing spacers disposed one behind the other in rows between said belt intermediate portion and said diaphragm walls and between said successive diaphragm walls and between said diaphragm walls and said abutment.
Claim 2
Dependent Claim
147 words
A shock absorbing structure for use with an abutment upstanding from the ground comprising a flexible belt including a relatively thin relatively wide web, means for mounting the ends of said belt in a predetermined location relative to said abutment with the intermediate portion of said web extending from said abutment to a forward area remote from said abutment and disposed with the width thereof substantially in a vertical plane and cantilevered horizontally away from said abutment to leave an intervening space, a plurality of vertically extending diaphragm walls disposed in said space and arranged successively one behind the other between said abutment and said forward area, and a plurality of horizontally extending, frangible energy absorbing spacers disposed one behind the other in rows between said belt intermediate portion and said diaphragm walls and between said successive diaphragm walls and between said diaphragm walls and said abutment.
Claim 3
Dependent Claim
18 words
A shock absorbing structure as in claim 1 in which said diaphragm walls are curved about said abutment.
Claim 4
Dependent Claim
38 words
A shock absorbing structure as in claim 1 in which substantially horizontal cables are secured at their ends to said abutment and to the ground and between their ends pass through said diaphragm walls in mutually supporting relationship.
References Cited (Backward Citations)
US1132315A
Cited
US1420065A
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US1503049A
Cited
DE446174C
Cited
US1696429A
Cited
GB532304A
Cited
US3614148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |