Spring devices – Vehicle – Comprising compressible fluid
Patent
1989-10-27
1991-05-14
Look, Edward K.
Spring devices
Vehicle
Comprising compressible fluid
188319, 188269, F16F 500
Patent
active
050149660
ABSTRACT:
An adjustable telescopic apparatus includes: a master pipe body with an axle opening at one end and a pivot opening at the other end; an operating member adjustably installed in the pivot opening of the master pipe body; a slave pipe body with a closed end and an open end movably disposed in the master pipe body with the closed end extending out from the axis opening of the master pipe body; a throttle member with a piston portion and a plurality of hermetic pieces installed at the open end of the slave pipe body for dividing said master pipe body into an oil containing portion to be filled with hydraulic oil and an air space portion over the piston portion of the throttle member; and a valve member with a threaded body portion installed in the piston portion of the throttle member for being movably adjusted along with the operating member so as to allow the hydraulic oil in the master pipe body to be compressed and expanded therein through the throttle member; whereby, the moving speed and the force required to collapse the slave pipe body into the master pipe body can be optionally adjusted for obtaining desired telescopic operations.
REFERENCES:
patent: 2335907 (1943-12-01), Boor et al.
patent: 2351662 (1944-06-01), Christofel
patent: 2394355 (1946-02-01), Beecher
patent: 2780321 (1953-01-01), Sturari
patent: 3363518 (1968-01-01), Boissevain
patent: 3944198 (1976-03-01), Sakamoto
patent: 4530425 (1985-07-01), Veaux
Look Edward K.
Mattingly Todd
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