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Pressure Pad Air Directional Device Disclosure Number: IPCOM000040544D
Original Publication Date: 1987-Nov-01
Included in the Prior Art Database: 2005-Feb-02

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Fey, D Haller, KA Pierson, MV [+details]


A pressure pad for holding a drilling surface flat also accomplishes the dispersal of drill debris by directing air underneath the debris. The pad is designed and works as described in the following. The pressure pad 1 contains six air inlets 2 which serve to direct air for debris removal. The air inlets are connected to a vacuum manifold (not seen) which pulls air through the inlets. The angular configuration of the inlets creates a swirling motion within the drill chamber 3 which starts debris rotation. The swirling motion is in the same direction as the drill rotation. The rotational motion eventually throws the debris from the drill area.