Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent
1984-12-19
1987-02-24
Halvosa, George E. A.
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
74526, 74818, 188299, 192142R, 25112912, 280707, 280714, F16F 934
Patent
active
046450424
ABSTRACT:
A hydraulic damper of adjustable damping force type includes a piston working in a cylinder and partitioning the interior of the cylinder into two liquid chambers, a piston rod with one end being connected to the piston and the other end extending to the outside of the cylinder, a liquid passage formed in the piston rod for connecting the two liquid chambers, an opening adjusting member rotatably disposed in the liquid passage for selectively adjusting the effective passage area of the liquid passage between at least three different passage area conditions, and an actuating device for reciprocatingly rotating the adjusting member between two extreme positions and one or more intermediate positions corresponding to respective passage area conditions. Two fixed stops are provided to stop the adjusting member at respective extreme positions, and a movable stop is provided to stop the adjusting member at an intermediate position. The location of the movable stop is determined in connection with either one of the extreme positions.
REFERENCES:
patent: 1520233 (1924-12-01), Gabriel
patent: 2044025 (1936-06-01), Windas
patent: 3206117 (1965-09-01), Anderson et al.
patent: 3680831 (1972-08-01), Fujiwara
patent: 3870274 (1975-03-01), Broe
patent: 4313529 (1982-02-01), Kato et al.
patent: 4463839 (1984-08-01), Ashiba
Ashiba Masahiro
Inoue Masaru
Halvosa George E. A.
Jidosha Denki Kogyo Kabushiki Kaisha
Tokico Ltd.
LandOfFree
Hydraulic damper 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic damper will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-103761