Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Movable relative to tool along tool-axis
Reexamination Certificate
2005-03-01
2005-03-01
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Movable relative to tool along tool-axis
C408S712000
Reexamination Certificate
active
06860682
ABSTRACT:
A drill guide has a base plate with a hole for positioning on or above a work piece. A carriage assembly secures the drill with the drill bit disposed over the base plate hole. The carriage assembly telescopes on guideposts with a spring biasing the carriage assembly away from the base plate. An alignment clamp has a compressible element to securely encompass drill chucks of various diameters.
REFERENCES:
patent: 833001 (1906-10-01), Press
patent: 1470143 (1923-10-01), Buterbaugh
patent: 1590643 (1926-06-01), Neuwelt
patent: 1794149 (1931-02-01), Collins
patent: 1895990 (1933-01-01), Harcharick
patent: 2454372 (1948-11-01), Billeter
patent: 2477916 (1949-08-01), Wilhide
patent: 2768663 (1956-10-01), Jones
patent: 2849900 (1958-09-01), Heidtman, Jr.
patent: 2888965 (1959-02-01), Phillips
patent: 2997900 (1961-08-01), Pugsley
patent: 3464295 (1969-09-01), Gallion
patent: 3838935 (1974-10-01), Boyajian
patent: 3890058 (1975-06-01), Self et al.
patent: 4010943 (1977-03-01), Eft
patent: 4072440 (1978-02-01), Glover
patent: 4082474 (1978-04-01), Stiger
patent: 4242016 (1980-12-01), Faris
patent: 4836720 (1989-06-01), Hadden
Howell Daniel W.
Kroll Michael I.
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