Cutlery – Perforating or indenting implements – With portion positioned in work aperture
Patent
1988-12-19
1990-11-13
Yost, Frank T.
Cutlery
Perforating or indenting implements
With portion positioned in work aperture
30362, 30366, 83685, B26F 100
Patent
active
049692690
ABSTRACT:
A device for punching cutouts through sheets of drywall or similar wall covering sheets that are typically installed on framing members to which utility boxes are mounted. A cutting assembly is removably mounted over the utility or electrical boxes and the cutting assembly has substantially the same projected contour of these boxes with a puncturing member that cuts through the drywall. A pulling assembly engages with the protruding end of the puncturing member and adapted to pull it, and the cutting assembly to which it is rigidly connected, thereby producing a cutout that substantially follows the contour of the utility box that needs to be exposed through the drywall.
REFERENCES:
patent: 1572191 (1926-02-01), Donnelly
patent: 1817223 (1931-08-01), Abramson et al.
patent: 3273241 (1966-09-01), Annes
patent: 3391460 (1968-07-01), Moore
patent: 4087913 (1978-05-01), Jackson
patent: 4730395 (1988-03-01), Blessing, Sr.
patent: 4796361 (1989-01-01), Neal
Fridie Jr. Willmon
Sanchelima J.
Yost Frank T.
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