Brakes – Vehicle – Railway
Patent
1978-06-02
1980-01-29
Peters, Jr., Joseph F.
Brakes
Vehicle
Railway
105 1A, 105197D, 188321, 267 3, B61F 506, B61F 512, B61F 514, B61H 1100
Patent
active
041857194
ABSTRACT:
A piston and cylinder motion dampening device having spiral groove metering, an orificed two-way pressure relief valve or a screw-on spring or an over-extension limiting seal retainer.
A push-together method of assembling a piston and cylinder motion dampening device.
A motion dampening device with a baffle chamber. A method of dampening the motion between two members utilizing a piston and cylinder motion dampening device having spiral groove means, a fixed orifice means and a two-way valve means to meter the fluid contained in the motion dampening device.
REFERENCES:
patent: 3464366 (1969-09-01), Sea
patent: 3626864 (1971-12-01), Wiebe
patent: 3701397 (1972-10-01), Shirane et al.
patent: 3773147 (1973-11-01), Wiebe
patent: 3831529 (1974-08-01), Schwam
patent: 3868912 (1975-03-01), Wagner et al.
patent: 3874307 (1975-04-01), Schwam
patent: 3995720 (1976-12-01), Wiebe
patent: 4077496 (1978-03-01), Wiebe
patent: 4106412 (1978-08-01), Farris et al.
Butler William S.
Farris Richard C.
Beltran Howard
Duzan James R.
Halliburton Company
Peters Jr. Joseph F.
Tregoning John H.
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