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US3841683A Expired / Lapsed US ⏱️ 0.0 years remaining

Safety bumper

Assignee: Individual
•
Filing: 1973-03-12
•
Granted: 1974-10-15
•
Expires: 1993-03-12
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Abstract

Abstract A safety bumper for vehicles providing a three stage shock absorbing means to protect the vehicle from damage and, more importantly, to protect the occupants of the vehicle from serious injury or death. A first stage is provided by a pneumatic bumper tire for low speeds, a second stage by a heavy spring for intermediate speeds, and a third stage for higher speeds is provided by a rubber shock absorber.

Inventors

  • 👤 A Toro

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 06:27
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/18; B60R19/20

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 237 words
A three stage safety bumper for a car comprising: A. a steel bumper including a forwardly, inwardly extending female peripheral bead; B. a pneumatic bumper tire removably attached across the outer face of said steel bumper, including, 1. a male, flexible, peripheral sealing bead for removable engagement within said female peripheral bead; C. an inlet valve stem for inflating said pneumatic bumper tire; D. telescoping cylinder means attached to and extending between the inner face of said steel bumper and one end beam of the frame of a vehicle comprising, 1. at least two outside cylinders, fixed relative to said steel bumper, and at least two inside cylinders, fixed relaTive to said end beam in telescopic, sliding engagement with the respective outside cylinders; E. limiting means, within said telescoping cylinders, to limit the maximum spacing between said steel bumper and beam comprising, 1. a bolt extending through each pair of inside and outside cylinders, fixed relative to said outside cylinder, and a nut, threaded onto said bolt, outwardly of said inside cylinder, to determine the maximum spacing between said steel bumper and end beam; F. a pair of spaced apart rubber shock absorbers within each pair of telescoping cylinders, circumposed about said bolt; and G. spring means, within each pair or telescoping cylinders to normally maintain the maximum spacing between said steel bumper and beam, comprising, 1. a heavy compression spring, circumposed about each of said bolts.
Claim 2
Dependent Claim 237 words
A three stage safety bumper for a car comprising: A. a steel bumper including a forwardly, inwardly extending female peripheral bead; B. a pneumatic bumper tire removably attached across the outer face of said steel bumper, including, 1. a male, flexible, peripheral sealing bead for removable engagement within said female peripheral bead; C. an inlet valve stem for inflating said pneumatic bumper tire; D. telescoping cylinder means attached to and extending between the inner face of said steel bumper and one end beam of the frame of a vehicle comprising, 1. at least two outside cylinders, fixed relative to said steel bumper, and at least two inside cylinders, fixed relaTive to said end beam in telescopic, sliding engagement with the respective outside cylinders; E. limiting means, within said telescoping cylinders, to limit the maximum spacing between said steel bumper and beam comprising, 1. a bolt extending through each pair of inside and outside cylinders, fixed relative to said outside cylinder, and a nut, threaded onto said bolt, outwardly of said inside cylinder, to determine the maximum spacing between said steel bumper and end beam; F. a pair of spaced apart rubber shock absorbers within each pair of telescoping cylinders, circumposed about said bolt; and G. spring means, within each pair or telescoping cylinders to normally maintain the maximum spacing between said steel bumper and beam, comprising, 1. a heavy compression spring, circumposed about each of said bolts.
Claim 3
Dependent Claim 37 words
A three stage safety bumper as defined in claim 1 wherein said pneumatic bumper tire is constructed of a combination of nylon plies and at least one steel belt and said sealing bead contains a steel cable.

References Cited (Backward Citations)

US1380759A Cited
US1580203A Cited
US1839015A Cited
US2145952A Cited
US3097725A Cited
US3203722A Cited
US3623527A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-14 1978-04-15 1978-10-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-14 1982-04-15 1982-10-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-14 1986-04-15 1986-10-15 $7700.00 Window Closed / Lapsed

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