Importance

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Abstract

A housing has a cylindrical side wall with an upper end and an open lower end. A circular disk with an aperture closes the upper end. A circular pusher plate is reciprocable within the housing between a raised orientation adjacent to the circular disk and a lowered orientation. A drive rod has lower and upper ends and a central extent extending through the aperture. The upper end is spaced above the disk. The drive rod has threads at its upper end and a nut removably coupled to the upper end. A handle has an interior end attached to the housing. The handle has an exterior end extending away from the housing. A coil spring encompasses the central extent of the drive rod. The bottom end of the spring contacts the disk. The top end of the spring contacts the nut.

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First Claim