Tool to aid in cutting circles in drywall

Details Tool to aid in cutting circles in drywall Tool to aid in cutting circles in drywall

1996-11-07

1998-10-20

Will, Thomas B.

Geometrical instruments

Scriber

Curved line

B43L 904

Patent

active

058228713

ABSTRACT:
A tool that aids in the cutting of a circle in drywall. The tool consists chiefly of a substantially flat main body including a plurality of grooves. The grooves are used to guide a cutting tool (e.g. a drywall knife) in a circular path. A fixing pin is attached at a first end of the main body, and a second raised end of the main body is curved or angled upward so that the end of the tool does not become embedded in the drywall during the cutting operation. The raised end of the tool may also be used to push the tool on its circular path.

REFERENCES:
patent: 765300 (1904-07-01), Williams
patent: 844157 (1907-02-01), Loughborough
patent: 1447207 (1923-03-01), Golden
patent: 2542537 (1951-02-01), Klemm
patent: 3474538 (1969-10-01), Kirkegard
patent: 4173829 (1979-11-01), Khait
patent: 4267638 (1981-05-01), Heinz
patent: 5265342 (1993-11-01), Lang, Jr.
patent: 5497558 (1996-03-01), Wagner
patent: 5615485 (1997-04-01), Stoneberg

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