Aladdin Engineering and Manufacturing, Inc.

Vladimir S Novak

Edward R Horn

Robert E Dowd

Leonoid Dukhin

Leonid Dukhin

A clamp for clampingly engaging a portion of a workpiece and for lifting the workpiece from a work surface. The clamp comprises a fluid actuated piston and cylinder assembly, a frame assembly, first and second clamp arms supported by the frame assembly for pivotal movement about respective first and second pivot axes and axial movement parallel to the longitudinal axis between an unclamped position and a clamped and lifted position, first and second pivot pins respectively defining the first and second pivot axes, first and second slider members respectively supported in first and second tracks for axial movement relative to frame assembly and respectively supporting the first and second pivot pins for axial movement along the first and second tracks relative to the frame assembly, first and second link pins supported proximate the opposite ends of the first and second clamp arms, respectively, the first link pin being movable along the first arcuate track and the first track and the second link pin being moveable along the second arcuate track and the second track, first and second link members connecting the first and second link pins, respectively, to the piston such that movement of piston between the extended position and the retracted position causes movement of the first and second clamp arms between the unclamped position and the clamped and lifted position.

Clamping and lifting mechanism

A clamp for clampingly engaging a portion of a workpiece and for lifting the workpiece from a work surface. The clamp comprises a fluid actuated pistol and cylinder assembly, a frame assembly, first and second clamp arms supported by said frame assembly for pivotal movement about respective first and second pivot axes and axial movement parallel to said longitudinal axis between an unclamped position and a clamped and lifted position, first and second pivot pins respectively defining said first and second pivot axes, first and second slider members respectively supported in first and second tracks for axial movement relative to frame assembly and respectively supporting said first and second pivot pins for axial movement along said first and second tracks relative to said frame assembly, first and second link pins supported proximate the opposite ends of said first and second clamp arms, respectively, said first link pin being movable along said first arcuate track and said first track and said second link pin being movable along said second arcuate track and said second track, first and second link members connecting said first and second link pins, respectively, to the piston such that movement of piston between said extended position and said retracted position causes movement of said first and second clamp arms between the unclamped position and the clamped and lifted position. As the piston is moved from the extended position to an intermediate position, the clamp arms are pivoted to a clamped position. As the piston is moved from the intermediate position to the retracted position, the clamp arms are moved to the clamped and lifted position and the slider members are moved in the tracks, respectively, so that said arcuate portions are substantially misaligned with said arcuate tracks to prevent the clamp arms from moving to an unclamped position.

Growing community of inventors

Appleton, WI, United States of America

Vladimir S Novak