Patent US3758134A successfully refreshed from Google Patents.
US3758134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breakaway step for high-clearance vehicles
Assignee: Individual
•
Filing: 1971-10-18
•
Granted: 1973-09-11
•
Expires: 1991-10-18
Abstract
Abstract A breakaway step construction which lends itself to reliably safe use on the frame structure of a high-clearance wheel supported vehicle. It comprises a mounting bracket supported in a vertical position from the vehicle frame, said bracket supporting the a horizontal arm. An ample but suitably small step is fixedly mounted on an outward end of the arm. Novel means serves to pivotally mount the inward end of the arm on the bracket in a manner to permit the arm and step to swing through an arcuate path in the event the step strikes an object while the vehicle is moving. Pressure responsive means fixedly joins the inner pivoted end of the arm to the bracket. It functions to retain the arm and step in an outstanding normally accessible position and permits the same to swing and retract to an out-of-the-way position, whenever necessary or desired.
Inventors
- 👤 G Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:30
CPC Classifications
B; B60; B60R; B60R3/00; B60R3/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
230 words
A safety-type breakaway step construction for a highclearance pickup truck or the like comprising: a rigid elongated bar constituting a mounting bracket and adapted to be vertically superimposed upon and bolted to a relatively stationary adapter bracket, said bracket having a median portion provided with a first outstanding lug and a lower end portion provided with a second outstanding lug, a horizontally elongated angle iron providing a step supporting arm and embodying a horizontal flange and an upstanding vertical flange, said horizontal flange having an inward end positioned atop and pivotally bolted to said second lug and an outer end portion extending outwardly beyond a corresponding outer end of said vertical flange, a normally intact but pressure responsive shear pin carried by said inward end portion and passing through and joining the same to said second lug, a stirrup-type step fixed atop the outer extending end portion of said horizontal flange and having an integral upstanding flange serving as a safeguarding stop shoulder for the user''s foot and firmly abutting an outward end of said vertical flange a stabilizing and regidifying brace located in a pLane above the upper surface of said horizontal flange and having an upward inner end rigidly secured to said first lug and an outward lower end joined to a coacting portion of said horizontal flange and an associated surface portion of said upstanding stop shoulder.
Claim 2
Dependent Claim
230 words
A safety-type breakaway step construction for a highclearance pickup truck or the like comprising: a rigid elongated bar constituting a mounting bracket and adapted to be vertically superimposed upon and bolted to a relatively stationary adapter bracket, said bracket having a median portion provided with a first outstanding lug and a lower end portion provided with a second outstanding lug, a horizontally elongated angle iron providing a step supporting arm and embodying a horizontal flange and an upstanding vertical flange, said horizontal flange having an inward end positioned atop and pivotally bolted to said second lug and an outer end portion extending outwardly beyond a corresponding outer end of said vertical flange, a normally intact but pressure responsive shear pin carried by said inward end portion and passing through and joining the same to said second lug, a stirrup-type step fixed atop the outer extending end portion of said horizontal flange and having an integral upstanding flange serving as a safeguarding stop shoulder for the user''s foot and firmly abutting an outward end of said vertical flange a stabilizing and regidifying brace located in a pLane above the upper surface of said horizontal flange and having an upward inner end rigidly secured to said first lug and an outward lower end joined to a coacting portion of said horizontal flange and an associated surface portion of said upstanding stop shoulder.
Claim 3
Dependent Claim
55 words
The step construction defined in claim 1 and wherein said intact shear pin functions to locate and position said arm and step in an outstanding normally accessible and usable position and when fractured as a result of a collision permits said arm and step to swing, either forwardly or rearwardly, to a breakaway out-of-the-way position.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |