Supports – Stand – Standard type
Patent
1978-09-22
1981-01-27
Foss, J. Franklin
Supports
Stand
Standard type
108136, F16M 1100
Patent
active
042470684
ABSTRACT:
Extensible support apparatus comprising a pair of telescoping members, e.g. hollow tubes preferably containing a substantially zero gradient biasing spring mechanism operatively interposed therebetween for counterbalancing forces exerted axially thereon,
which in one form provides a vertically adjustable table support having tension hook elements operatively interconnecting under selective tension a top plate for carrying a table top thereon and the upper end of the upper telescoping member in abutting engagement with the underside of the top plate,
which in an additional form provides a releasable locking mechanism operatively interposed between the telescoping members for releasably locking the members in any selective position of telescoping relation therebetween including a stationary cam control wear plate and a movable cam control shim arranged in substantially coplanar slidable and force and wear distributing relation thereto so as to permit the shim to be slidably contacted and moved by a control cam for releasably locking the members and in turn to permit the shim to distribute operatively the resultant cam force and wear correspondingly throughout the common coplanar slidable extent of the shim and wear plate, and
which in a further form provides a releasable engagement mechanism at the inserted end of the inner telescoping member for operatively releasably engaging the internal wall of the outer telescoping member in any selective position of telescoping relation between the members, and an axially elongated coaxially guiding slide ring sealingly interposed between the members and attached to the internal wall of the outer member at the end thereof adjacent the inner member for coaxially guiding and maintaining the members in sealed sliding relation in any position of telescoping movement therebetween.
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patent: 2570365 (1951-10-01), Michael et al.
patent: 2902592 (1959-09-01), Cole et al.
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patent: 3481286 (1969-12-01), Mar et al.
patent: 3675597 (1972-07-01), Oddsen
patent: 3741514 (1973-06-01), Snurr
patent: 3880097 (1975-04-01), Camilleri
patent: 4111389 (1978-09-01), Gundlach et al.
Edelson Leo
Oddsen Gustav A.
Oddsen Trygve R.
Foss J. Franklin
G.L.R. Corporation
March Arthur A.
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