Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent
1986-03-21
1987-04-28
Reger, Duane A.
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
18832213, F16F 934
Patent
active
046606890
ABSTRACT:
A hydraulic buffer comprises a cylinder, a piston disposed slidably in the cylinder to partition the interior of the cylinder into first and second liquid chambers, a piston rod connected with the piston and having a first path communicating to the first liquid chamber and a second path communicating to the second liquid chamber and a control rod disposed in the piston rod. A regulating valve operated by the control rod is disposed in the first path and has a third path capable of affording communication between the first and the second paths. The buffer further comprises a case fixed on an outer peripheral surface of the piston rod in the second liquid chamber and having a fourth path affording communication between the second path and the second liquid chamber and a check valve provided in association to the fourth path.
REFERENCES:
patent: 3319741 (1967-05-01), Hauck
patent: 3365033 (1968-01-01), Willich
patent: 4463839 (1984-08-01), Ashiba
Hayashi Makoto
Yokoya Yuji
Reger Duane A.
Toyota Jidosha & Kabushiki Kaisha
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