Tension clamp and screen system

Abstract

A clamp system has been invented for releasably securing a screen to a vibratory screen apparatus, the clamp system in one aspect having a front plate for abutting a portion of a vibratory screen apparatus, a first link movably connected to the front plate and having a first contact surface, a second link movably connected to the first link and having a second contact surface, a bolt with a first end projecting out beyond the second link and a second end projecting out beyond the front plate, the bolt tightenable in place by an adjusting nut on one end thereof, and the first link and the second link movable so that the first contact surface abuts the second contact surface and the links are then held releasably together. In one aspect the front plate and the first link are movably mounted together by two plate pinions, one on each side of two spaced-apart sides of the front plate; the second link and bolt stop member are movably mounted together by two swivel pinions, one on each of two spaced-apart sides of the second link; and first link and the second link are movably mounted together by two link pinions one on each of two spaced-apart sides of the links, and these link pinions are positioned so that when the first contact surface and the second contact surface are in abutting contact centers of the link pinions are below a line between centers of the plate pinions and centers of the swivel pinions. Methods have been invented for using such clamp systems and vibratory screen apparatus have been invented with one or more such clamp systems.

Dependencies are inferred from the claim text.