Patent US3695583A successfully refreshed from Google Patents.
US3695583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorbing structure
Assignee: Energy Absorption Systems Inc
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Filing: 1970-09-04
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Granted: 1972-10-03
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Expires: 1990-09-04
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 or belts are used between adjacent energy absorbers. Anchor cables may pass through and engage the diaphragms or belts.
Inventors
- 👤 Grant W Walker
- 👤 Duane B Ford
- 👤 Lester N Meinzer
- 👤 Reid S Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:30
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/14; E01F15/141; E01F15/145; E01F15/146
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
137 words
A shock absorbing structure for use with an abutment upstanding from the ground comprising a relatively thin relatively wide belt limply flexible when the width is horizontal and stiff when the width is vertical, means for securing the two ends of said belt to adjacent portions of said abutment with the belt width vertical and with the intermediate portion of the belt cantilevered horizontally from said abutment out of contact with the ground and extending outwardly from said abutment in at least a partial loop when seen in plan to leave a substantial intervening space between the intermediate portion of the belt and said abutment, and an energy transforming spacer means disposed in and extending substantially horizontally across said space and at one end engaging said belt intermediate portion and at the other end engaging said abutment.
Claim 2
Dependent Claim
137 words
A shock absorbing structure for use with an abutment upstanding from the ground comprising a relatively thin relatively wide belt limply flexible when the width is horizontal and stiff when the width is vertical, means for securing the two ends of said belt to adjacent portions of said abutment with the belt width vertical and with the intermediate portion of the belt cantilevered horizontally from said abutment out of contact with the ground and extending outwardly from said abutment in at least a partial loop when seen in plan to leave a substantial intervening space between the intermediate portion of the belt and said abutment, and an energy transforming spacer means disposed in and extending substantially horizontally across said space and at one end engaging said belt intermediate portion and at the other end engaging said abutment.
Claim 3
Dependent Claim
14 words
A shock absorbing structure as in claim 1 in which said spacer is frangible.
Claim 4
Dependent Claim
15 words
A shock absorbing structure as in claim 1 in which said belt is a fabric.
Claim 5
Dependent Claim
23 words
A shock absorbing structure as in claim 1 including spaced apart stiffening cleats extending across the width of and united to said belt.
Claim 6
Dependent Claim
19 words
A shock absorbing structure as in claim 4 in which said cleats and said belt are adhesively secured together.
Claim 7
Dependent Claim
32 words
A shock absorbing structure as in claim 4 in which said cleats have one longitudinal edge disposed near to said belt and have the other longitudinal edge disposed far from said belt.
Claim 8
Dependent Claim
24 words
A shock absorbing structure as in cLaim 4 in which said cleats are disposed on and are united to opposite sides of said belt.
Claim 9
Dependent Claim
36 words
A shock absorbing structure as in claim 1 in which a plurality of said spacers are arranged beside each other in said space between different horizontally separated parts of said belt intermediate portion and said abutment.
Claim 10
Dependent Claim
40 words
A shock absorbing structure as in claim 1 in which a plurality of said spacers are arranged end to end in said space and in which diaphragm walls are disposed in said space between the adjacent ends of said spacers.
Claim 11
Dependent Claim
18 words
A shock absorbing structure as in claim 9 in which said diaphragm walls are curved about said abutment.
Claim 12
Dependent Claim
27 words
A shock absorbing structure as in claim 9 in which substantially horizontal cables are secured at their ends and between their ends pass through said diaphragm walls.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |