| 摘要 |
<p>A new locking power clamp assembly for repetitive use in uniformly and securely clamping a closure member over a container opening, said clamp assembly comprising: a clamp arm member (16) having a clamping contact surface thereon, said clamp arm member (16) being of elongated dimension and being capable of generally rotational movement, such that when the clamp assembly is opened, the clamp arm member (16) will move in a generally perpendicular direction away from the plane of the closure member and also will move in a radial direction away from a peripheral edge of the closure member; at least one frame member; at least two link arm members (24,25), each being of different length; a fluid operated piston and cylinder assembly (20,22), with the piston (22) being connected to one of the link aim members (24), and the cylinder being connected to said frame member; a rotator member (28) secured to the frame member to support and assist proper movement of the clamp arm member (16). <IMAGE></p> |
