Portable stable tripod for photographic equipment
AssigneeSavage Universal Corporation
InventorBo Christensen
Life of this patent
Estimating the term…
Abstract
An improved tripod having enhanced versatility for use preferably as a stand for photographic camera or lighting equipment, wherein the legs are. variable not only with respect. to the length of each other leg. but also with respect to the angle between the legs and the support platform for the photographic equipment, and where one of the legs is independently, longitudinally movable with respect to the other two legs, the other two legs being locked together for longitudinal movement.
Claims14
A tripod comprising a longitudinally extending central column, the central column having a central axis, a first end and a second end, a central plate rigidly and immovably secured to the second end of the central column and having a surface extending outwardly from, and transversely to, the axis of the central column;
- and further comprising:
- three yokes longitudinally movably secured to the central column;
- three legs, each pivotally secured to one of the longitudinally movable yokes, being longitudinally, telescopically extendable outwardly from the yoke on the central column;
- a longitudinal lock on each leg to lock each leg separately at a plurality of longitudinal positions;
- three struts, each strut having two ends, and being pivotally secured at one end to the central plate;
- and
- three collars, each collar surrounding and being longitudinally slidably movable along one of the legs, the second end of each strut being pivotally movably secured to one of the collars;
- whereby the tripod is capable of stably supporting photographic equipment on the central column when the legs are resting on a level surface or at longitudinally different horizontal levels or on uneven surfaces.
A tripod having a longitudinally extending central column, the central column having a central axis, a first end and a second end, with channels extending between the two ends along the central column, a central plate rigidly, longitudinally immovably, secured to the second end of the central column;
- longitudinally movable yokes movably secured in the channels, and three legs, each leg having a first end and a second end, and being pivotally secured at the first end to one of the longitudinally movable yokes secured to the central column;
- a collar on each leg, each such collar being longitudinally movably secured around, and movable along the leg;
- each leg also being longitudinally, telescopically extending from the collar;
- and having locking means on each leg to lock each leg separately at a plurality of longitudinally extending positions;
- three struts, each strut being pivotally secured at one end to the central plate and pivotally secured at a second end to the collar on one of the three legs;
- whereby the tripod is capable of stably supporting photographic equipment on the central column when the legs are resting on a level surface or a longitudinally different horizontal levels or on uneven surfaces.
Dependencies are inferred from the claim text.