Patent ID: 8104809
Filing Date: 2012-01-31
Classification: B25B,Y10S

Abstract:
1. A suction device comprising: a base forming about a half sphere having a convex top adapted to fit the shape of a palm of a human hand so that the suction device can be pressed against a workpiece by the palm of a human hand, a suction cup connected to said base, the suction cup including a piston therein, a piston rod in said base and connected to the piston, a cam adjacent the base and pivotally connected at one end to said piston rod, so that when said cam is rotated in one direction, said piston rod moves said piston and increases the vacuum in said suction cup, and when said cam is rotated in the opposite direction, said piston rod moves said piston and decreases the vacuum in said suction cup, a C shaped handle having two ends and two base elements, each connected to a handle end and extending between said handle ends and rotatably mounted in the base, and arch top connected between the base elements and pivotally connected to said cam so that when said handle is rotated, it rotates said cam, an alarm chamber in said base, said alarm chamber communicating with said suction cup, an alarm button movable in said alarm chamber, and a spring located between said base and said alarm button and biasing said alarm button away from said base and out of said alarm chamber, said alarm button including an alarm ring, so that when said alarm button is biased away from said base by said spring, said alarm ring is visible, and so that when a sufficient vacuum is present in said suction cup, said alarm ring is not visible.