Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent
1987-02-05
1988-08-23
Butler, Douglas C.
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
188299, 18832215, 251310, F16F 934
Patent
active
047654465
ABSTRACT:
A hydraulic damper of the adjustable damping force type includes a cylinder, a piston rod having an end portion inserted into the cylinder and a bore formed therein and extending in the axial direction thereof, a piston secured to one end portion of the piston rod and partitioning the interior of the cylinder into two chambers, a passage for communicating the two chambers through the bore, at least one pair of orifices disposed midway along the passage, an adjusting rod rotatably inserted into the bore and adapted to be operated from the side of the other end portion of the piston rod, and a shutter secured to the adjusting rod and having a pair of openings radially formed so as to open the at least one pair of orifices. The at least one pair of orifices and the pair of openings are arranged such that either one of the pair of orifices starts to open and close after the other.
REFERENCES:
patent: 4527676 (1985-07-01), Emura et al.
patent: 4620619 (1986-11-01), Emura et al.
patent: 4635906 (1987-01-01), Buma
patent: 4645043 (1987-02-01), Imaizumi
patent: 4645044 (1987-02-01), Kato et al.
Murata Hiroshi
Terasawa Kunihiko
Butler Douglas C.
Tokico Ltd.
LandOfFree
Hydraulic damper of adjustable damping force type does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic damper of adjustable damping force type, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic damper of adjustable damping force type will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-831320