Supports – Stand – Plural leg
Patent
1985-09-30
1987-09-22
Husar, Cornelius J.
Supports
Stand
Plural leg
2481631, 248412, 403109, 403377, B64G 136
Patent
active
046950214
ABSTRACT:
A support stand for a camera or other optical device comprises a head portion supported by support legs comprising first and second telescopically related tube portions, the inner tube portion forming the upper part of the respective leg and the outer tube portion forming the lower part. A fixing device for locking the tube portions of each leg relative to each other comprises an actuating rod which extends within the tube portions and which carries at its lower end first and second clamping cone members which taper in the same direction and which are co-operable with respective pressure elements surrounding same. In a condition of the fixing means which is intermediate between the full locking condition thereof and the fully released condition thereof, a frictional lock is provided between the two telescopically related tube portions, such lock being such that it can be overcome by hand but prevents excessively easy axial displacement of the telescopic tube portions of the respective leg relative to each other, by virtue of each cone member urging the associated pressure element into frictional contact with the inside wall surface of the outer tube portion.
REFERENCES:
patent: 889768 (1908-06-01), De Leeuw
patent: 1677358 (1928-07-01), McKillop
patent: 2275330 (1942-03-01), Fyeten
patent: 2490369 (1949-12-01), Neuwirth
patent: 2508039 (1950-05-01), Neuwirth
patent: 2591051 (1952-04-01), Caldwell
patent: 3735794 (1973-05-01), Lebowitz
patent: 4134703 (1979-01-01), Hinners
patent: 4167352 (1979-09-01), Pletscher
Cullmann Handelsgesellschaft fur Verbrauchsgutter mbH
Husar Cornelius J.
Knight Anthony
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