Supports – Stand – Standard type
Patent
1990-12-17
1992-04-28
Lazarus, Ira S.
Supports
Stand
Standard type
2482801, 2482921, F16M 1100
Patent
active
051080613
ABSTRACT:
An adjustable stand comprising a base with a pair of upstanding, spaced parallel friction plates having an upstanding arm with a lower end pivotally attached between the friction plates and an upper end connected to a supported load. The lower end of the arm has a friction member adapted to engage the friction plates. A counterbalancing tension spring extends between the arm and the base to substanatially balance the weight of the arm and the supported load whereby the counterbalancing spring and the friction member act to ensure tht the upstanding arm with its supported load will remain at any position to which the upstanding arm is pivoted.
REFERENCES:
patent: 1823535 (1931-09-01), Frutkow et al.
patent: 1851199 (1932-03-01), Mayer
patent: 2037435 (1936-04-01), Reichenbach
patent: 2133923 (1936-04-01), Perlmutter
patent: 2242303 (1939-11-01), Irmischer
patent: 2543926 (1951-03-01), Mounique
patent: 2608367 (1952-08-01), Boltuch
patent: 3037799 (1959-09-01), Mulac
patent: 3188460 (1965-06-01), Thorsen et al.
patent: 3247370 (1966-04-01), Lynn
patent: 3265341 (1966-08-01), Ruder
patent: 3409767 (1968-11-01), Entwistle
patent: 3543019 (1970-11-01), Jacobsen
patent: 3652848 (1972-03-01), Miller et al.
patent: 3983386 (1976-09-01), Schallenkammer
patent: 4165530 (1979-08-01), Sowden
patent: 4545555 (1985-10-01), Koch
patent: 4770384 (1988-09-01), Kuwazima et al.
patent: 4846434 (1989-07-01), Krogsrud
Hagarman Sue
Lazarus Ira S.
McLellan J. F.
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