Brakes – Internal-resistance motion retarder – Resistance alters relative to direction of thrust member
Patent
1976-11-30
1978-09-12
Halvosa, George E. A.
Brakes
Internal-resistance motion retarder
Resistance alters relative to direction of thrust member
16 82, 188300, 248354H, 267 64R, 267124, 296 56, F16F 934
Patent
active
041130715
ABSTRACT:
A stay for use with a cover or the like and having a cylinder containing a pressure fluid medium and a piston arranged for movement into and out of the cylinder. The piston rod carries a piston which is slidably arranged within the cylinder and which itself is mounted on the piston rod for axial displacement relative thereto and has at least one opening that allows the pressure fluid medium to flow through the piston. The piston rod itself has two abutments, the first being arranged in the region of the interior end of the piston and the second being spaced from the first abutment, these two abutments having the piston arranged between themselves and limiting the axial displacement of the piston with respect to the piston rod. Moreover, the piston rod carries a cover element which is likewise axially displaceable relative to the piston rod and is adapted to close the opening or openings of the piston. A spring is provided to bias the cover element toward the piston such that the cover element closes the opening or openings of the piston while the piston and piston rod are stationary and the piston is in a position in which it is displaced toward the second of the two abutments. Finally, there is a third abutment which is on the piston rod and is arranged next to the second abutment, this third abutment serving the function of limiting the movement of the cover element toward the interior end of the piston rod.
REFERENCES:
patent: 2953810 (1960-09-01), Hall
patent: 2953811 (1960-09-01), Hall
patent: 3299990 (1967-01-01), Ratcliffe
patent: 3851867 (1974-12-01), Fricko
Hanke Georg
Muller Hans
Halvosa George E. A.
Volkswagenwerk Aktiengesellschaft
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