US3718356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bumper and brake actuator assembly
Assignee: Individual
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Filing: 1971-10-06
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Granted: 1973-02-27
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Expires: 1991-10-06
Abstract
Abstract An impact absorbing bumper assembly in which a bumper is combined with a cylinder which is arranged to be secured to the chassis of a vehicle, the cylinder having a piston arranged to reciprocate therein. One shaft is secured to one end of the cylinder and a second shaft is secured to the piston. A pair of tubular members is provided, each having right angle bends therein. One of the tubular members receives the free end of the one shaft and the other of the tubular members receives the free end of the other shaft. A plurality of discrete balls is positioned in each of the tubular members between the rods and the free ends of the shaft to transmit impact forces from the bumper to the shafts. The piston arrangement is such that it includes a variable orifice means to reduce the amount of fluid passing through the piston as the displacement of the piston within the cylinder increases. The bumper assembly may be combined with the braking system of the vehicle to apply pressurized fluid thereto and thereby apply the brakes upon impact.
Inventors
- 👤 A Gabella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:43
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/24; B60R19/26; B60R19/32
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
139 words
An impact absorbing bumper assembly comprising a bumper, a pair of spaced rods secured to said bumper, a cylinder arranged to be secured to the chassis of a vehicle, a piston arranged to reciprocate within said cylinder, a first shaft secured to one end of said cylinder, a second shaft secured to said piston extending from the opposite end of said cylinder, a pair of tubular members each having right angle bends therein receiving said rods, one of said tubular members receiving the free end of said first shaft and the other of said tubular members receiving the free end of said second shaft, and a plurality of discrete balls positioned in each of said tubular members between each of said rods and said free ends of said shafts to transmit impact forces from said bumper to said shafts.
Claim 2
Dependent Claim
139 words
An impact absorbing bumper assembly comprising a bumper, a pair of spaced rods secured to said bumper, a cylinder arranged to be secured to the chassis of a vehicle, a piston arranged to reciprocate within said cylinder, a first shaft secured to one end of said cylinder, a second shaft secured to said piston extending from the opposite end of said cylinder, a pair of tubular members each having right angle bends therein receiving said rods, one of said tubular members receiving the free end of said first shaft and the other of said tubular members receiving the free end of said second shaft, and a plurality of discrete balls positioned in each of said tubular members between each of said rods and said free ends of said shafts to transmit impact forces from said bumper to said shafts.
Claim 3
Dependent Claim
35 words
The bumper assembly of claim 1 in which said piston includes a variable orifice means to reduce the amount of fluid passing through said piston as the displacement of the piston within the cylinder increases.
Claim 4
Dependent Claim
27 words
The bumper assembly of claim 1 which includes means for bleeding fluid from said cylinder to the vehicle braking system as the piston moves within said cylinder.
Claim 5
Dependent Claim
43 words
The bumper assembly of claim 2 in which said variable orifice means includes an aperture disk secured to said piston and rotatable relative thereto, said cylinder having guide means for causing such relative rotative movement during movement of said piston within said cylinder.
Claim 6
Dependent Claim
19 words
The bumper assembly of claim 3 which includes a check valve means between said cylinder and said braking system.
Claim 7
Dependent Claim
175 words
An impact absorbing bumper assembly comprising a bumper, a pair of spaced rods secured to said bumper, a cylinder arranged to be secured to the chassis of a vehicle, an apertured piston arranged to work on a liquid in reciprocating in said cylinder, variable orifice means on said piston arranged to provide a progressively greater flow resistance for liquid passing through said piston as the piston moves toward one end of said cylinder, a first shaft secured to one end of said cylinder, a second shaft secured to said piston extending from the opposite end of said cylinder, a pair of tubular members each having right angle bends therein receiving said rods, one of said tubular members receiving the free end of said first shaft and the other of said tubular members receiving the free end of said second shaft, and a plurality of discrete balls positioned in each of said tubular members between each of said rods and said free ends of said shafts to transmit impact forces from said bumper to said shafts.
Claim 8
Dependent Claim
175 words
An impact absorbing bumper assembly comprising a bumper, a pair of spaced rods secured to said bumper, a cylinder arranged to be secured to the chassis of a vehicle, an apertured piston arranged to work on a liquid in reciprocating in said cylinder, variable orifice means on said piston arranged to provide a progressively greater flow resistance for liquid passing through said piston as the piston moves toward one end of said cylinder, a first shaft secured to one end of said cylinder, a second shaft secured to said piston extending from the opposite end of said cylinder, a pair of tubular members each having right angle bends therein receiving said rods, one of said tubular members receiving the free end of said first shaft and the other of said tubular members receiving the free end of said second shaft, and a plurality of discrete balls positioned in each of said tubular members between each of said rods and said free ends of said shafts to transmit impact forces from said bumper to said shafts.
Claim 9
Dependent Claim
34 words
The bumper assembly of claim 6 which includes conduit means arranged to communicate said cylinder to the braking system of said vehicle during a portion of the movement of said piston within said cylinder.
Claim 10
Dependent Claim
45 words
The bumper assembly of claim 6 in which said variable orifice means includes an apertured disk mounted to said piston and rotatable relative thereto, said cylinder being provided with guide means for effecting such relative rotating movement upon movement of said piston in said cylinder.
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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |