04640482 is referenced by 31 patents and cites 13 patents.

A folding tripod the legs of which are moveable into operative positions where they can be arrested to impart stability and firmness to the tripod, by clamping them against peripheral surfaces of brackets protruding from a center post of the tripod. Each bracket is provided with a bearing acting as a fulcrum for its associated leg, and with a peripheral surface surrounding the bearing, the surface having at least one portion which is closer to the bearing than other portions, whereby the legs tend to resist pivotal movement from an operative, load bearing position while permitting movement in an opposite direction to facilitate their release and subsequent storage.

Title
Foldable tripod
Application Number
6/653901
Publication Number
4640482
Application Date
September 25, 1984
Publication Date
February 3, 1987
Inventor
Howard G Rogers
Weston
MA, US
Agent
Karl Hormann
Assignee
Polaroid Corporation
MA, US
IPC
F16M 11/38
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