Patent ID: 6851900
Filing Date: 2005-02-08
Classification: B23Q,B25H,Y02P,Y10T

Abstract:
1. A hole cutting tool for cutting a hole in a surface, said tool comprising: a portable frame assembly adapted to be selectively placed against the surface in which the hole is to be cut, said portable frame assembly including a first attachment chamber and a second attachment chamber pneumatically isolated from the first chamber when the frame is placed against the surface; a template supported in the frame assembly and positioned at least in part between the first and second chambers, said template defining an opening in the frame assembly that corresponds at least in part to the outline of the hole to be cut; and a source of negative air pressure in selective air communication with the first and second chambers and operable to secure the frame assembly against the surface in a temporarily immobilized condition when the negative air pressure source is in air communication with either the first or second chambers to permit the hole to be cut in the surface using the template-defined opening as a guide.