Patent ID: 6439559
Filing Date: 2002-08-27
Classification: B25B

Abstract:
A vacuum control device to be used in combination with a worktable having at least one recessed opening and a vacuum source which draws air through said recessed opening, said vacuum control device comprising:a body with a seating side, a support side and a flange separating said seating side from said support side, said body surrounding an interior chamber, a top wall partially closing said interior chamber on said support side, said top wall having a stem aperture and at least one vacuum hole, a base removably fastened to said body and covering said interior chamber at said seating side, a plunger located within said interior chamber, said plunger having a vacuum stop and a stem orthogonally projecting from said vacuum stop and of a size to protrude through said stem aperture, said vacuum stop of a size to obstruct each said vacuum hole when against said top wall, and a spring partially compressed between said vacuum stop and said base within said interior chamber.