Spring devices – Vehicle – Comprising compressible fluid
Patent
1980-11-19
1983-02-15
Butler, Douglas C.
Spring devices
Vehicle
Comprising compressible fluid
267 6425, 267120, 267124, A47C 2004, F16F 900, F16F 954
Patent
active
043737072
ABSTRACT:
In the illustrative embodiments of the invention described, a main gas spring unit used to raise and lower a movable leg rest member of a bed construction includes a further gas spring device axially connected end-to-end to the main gas spring unit. The addition of the gas spring device allows the leg rest member to be raised, with only a small manual effort, to a higher level than is possible with the main gas spring unit alone. Preferably the internal force exerted on the piston rod of the main gas spring unit is greater than the internal force exerted on the piston rod of the gas spring device. The cylinder members of the main gas spring unit and the gas spring device may be formed by a common tubular member, with the two units being separated by a common movable wall. Alternatively, the cylinder members can be separate self-contained members that are rigidly attached at adjoining end walls thereof.
REFERENCES:
patent: 2539841 (1951-01-01), Katz
patent: 2559967 (1951-07-01), Katz
patent: 3128088 (1964-04-01), Paschakarnis
patent: 3711054 (1973-01-01), Bauer
patent: 3762514 (1973-10-01), Freitag
patent: 3825244 (1974-07-01), Bauer
patent: 3938793 (1976-02-01), Kaptanis et al.
patent: 4072288 (1978-02-01), Wirges et al.
patent: 4156523 (1979-05-01), Bauer
patent: 4245826 (1981-01-01), Wirges
Butler Douglas C.
Stabilus GmbH
LandOfFree
Construction including a gas spring does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Construction including a gas spring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Construction including a gas spring will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1797355