US3706359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy absorbing structures
Assignee: Oregon Tool Inc
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Filing: 1970-09-25
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Granted: 1972-12-19
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Expires: 1990-09-25
Abstract
Abstract An automobile frame includes telescoping front and rear sections normally extended by energy absorbing devices each including pairs of drawable rods secured together by turnbuckle nuts and engaging pairs of drawing dies in bars fixed to the sections. Energy absorbing devices include ears on bumpers and frames held together by drawable or extrudable rods with long threaded shanks on the rods to permit takeup after partial drawing or extruding.
Inventors
- 👤 Edward P Skralskis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:03
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/24; B60R19/26; B60R19/34
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
In an energy absorbing fastener structure, a drawable rod member having a long shank and a drawable portion, the shank being threaded along a predetermined length thereof, a nut of a length substantially less than that of the shank and threaded thereon and screwed on the end portion of the threaded portion, a die for drawing the drawable portion, a tubular means surrounding a substantial length of the threaded portion of the shank and against which the nut bears to enable the nut to be screwed further on the threaded portion to take up slack after a partial draw of the drawable portion, and ratchet and pawl means on the tubular means and the chassis frame.
Claim 2
Dependent Claim
116 words
In an energy absorbing fastener structure, a drawable rod member having a long shank and a drawable portion, the shank being threaded along a predetermined length thereof, a nut of a length substantially less than that of the shank and threaded thereon and screwed on the end portion of the threaded portion, a die for drawing the drawable portion, a tubular means surrounding a substantial length of the threaded portion of the shank and against which the nut bears to enable the nut to be screwed further on the threaded portion to take up slack after a partial draw of the drawable portion, and ratchet and pawl means on the tubular means and the chassis frame.
Claim 3
Dependent Claim
114 words
In an energy absorbing fastener structure, a drawable rod member having a long shank and a drawable portion, the shank being threaded along a predetermined length thereof, a nut of a length substantially less than that of the shank and threaded thereon and screwed on the end portion of the threaded portion, a die for drawing the drawable portion, a tubular means surrounding a substantial length of the threaded portion of the shank and against which the nut bears to enable the nut to be screwed further on the threaded portion to take up slack after a partial draw of the drawable portion, and a compression spring urging the nut and the die apart.
Claim 4
Dependent Claim
114 words
In an energy absorbing fastener structure, a drawable rod member having a long shank and a drawable portion, the shank being threaded along a predetermined length thereof, a nut of a length substantially less than that of the shank and threaded thereon and screwed on the end portion of the threaded portion, a die for drawing the drawable portion, a tubular means surrounding a substantial length of the threaded portion of the shank and against which the nut bears to enable the nut to be screwed further on the threaded portion to take up slack after a partial draw of the drawable portion, and a compression spring urging the nut and the die apart.
Claim 5
Dependent Claim
19 words
The energy absorbing fastener structure of claim 2 wherein the spring is between the nut and the tubular means.
Claim 6
Dependent Claim
19 words
The energy absorbing fastener structure of claim 3 including a sleeve surrounding the spring and abutting the tubular means.
Claim 7
Dependent Claim
19 words
The energy absorbing fastener structure of claim 2 wherein The spring is between the tubular means and the die.
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |