Clamp for securing a pole to a stationary object

Details Clamp for securing a pole to a stationary object Clamp for securing a pole to a stationary object

1997-05-23

1998-11-17

Braun, Leslie A.

Supports

Brackets

Specially mounted or attached

248214, 2482301, 2482961, A47B 9606

Patent

active

058365591

ABSTRACT:
A clamp for securing a pole to a stationary object having a body, an axially traveling plunger disposed within the body, an axially movable piston disposed with the plunger, a threaded cap, and a handle. The clamp is secured to the stationary object, e.g. a surgical rail, by a pair of opposed jaws. The body and the plunger have separate generally egg-shaped bores formed therein through which the pole to be secured is inserted. The handle has a threaded shaft which matingly engages corresponding threads on an inner bore in the cap. The end of the threaded shaft is secured to the piston. As the handle is rotated, the mating threads on the shaft and inner bore of the cap cause the shaft, and the piston connected thereto, to travel axially within the body. Upon continued rotation of the handle, the piston contacts the pole and forces the pole into an elongated end of the generally egg-shaped bore in the plunger. Under the force of the piston and the pole, the plunger travels axially within the body into pressing engagement with the surgical rail. A slot formed in the plunger allows the plunger to expand within the plunger bore in the body upon further rotation of the handle. This expansion of the plunger, removes any "play" or movement between the plunger and the plunger bore and between the pole, the plunger, and the piston.

REFERENCES:
patent: 2267583 (1941-12-01), Carroll
patent: 2529173 (1950-11-01), Moyer et al.
patent: 3157378 (1964-11-01), Blum
patent: 3216752 (1965-11-01), Rifken
patent: 4018412 (1977-04-01), Kees, Jr. et al.
patent: 4547092 (1985-10-01), Vetter et al.
patent: 4796846 (1989-01-01), Meier et al.
patent: 5538215 (1996-07-01), Hosey
patent: 5735499 (1998-04-01), Phillips et al.

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