Hole saw guide clamp system

Details Hole saw guide clamp system Hole saw guide clamp system

1996-01-16

1998-09-01

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

408 97, 408103, 408241B, B23B 4728

Patent

active

058000992

ABSTRACT:
This invention provides a system for using a portable tool for assisting the making of holes in installed pipes, such as water pipes and the like, to prepare for interconnected piping. Such system preferably utilizes a hole saw guide bushing which is contained in a clamp-head at the end of the fixed jaw of a "Vise-Grip.TM."-like device. Such clamp-head accommodates various sizes of guide bushings and hole-saws for making various size holes in various size pipes. Other features assist accurate hole positioning, e.g., horizontal and vertical levels, center marks, and V-shaped holding surfaces on the clamp-heads.

REFERENCES:
patent: 957721 (1910-05-01), Troup
patent: 2181746 (1939-11-01), Siebrandt
patent: 2670635 (1954-03-01), Evans
patent: 4060333 (1977-11-01), White
patent: 5118228 (1992-06-01), Story
patent: 5163792 (1992-11-01), Slavik
patent: 5322396 (1994-06-01), Blacker

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