Spot weld drill guide

Details Spot weld drill guide Spot weld drill guide

1989-11-28

1991-09-24

Schwartz, Larry I.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

408241S, B23B 4900

Patent

active

050510436

ABSTRACT:
A small, lightweight spot weld drill guide attached to a conventional drill motor and includes a guide housing having a reference surface defining a reference position that is positionable against a surface being drilled, a drill shaft disposed partly within the guide housing, a bearing supporting the drill shaft within the guide housing and a locking assembly controlling the length of travel of the drill shaft within the guide housing. Windows adjacent the reference surface of the guide housing enable the drill bit to be accurately positioned over a spot weld prior to drilling to a precise, predetermined bore depth.

REFERENCES:
patent: 2296087 (1942-09-01), Burns, Jr.
patent: 2359859 (1944-10-01), Jarvis
patent: 2375112 (1975-05-01), Kanihan
patent: 2608114 (1952-08-01), Martin et al.
patent: 2710549 (1955-06-01), Cogsdill
patent: 3320832 (1967-05-01), Jensen
patent: 3336611 (1967-08-01), Schepp
patent: 3758221 (1973-09-01), Meshulam
patent: 4105359 (1978-08-01), Schneider et al.
patent: 4115017 (1978-09-01), Wilhelmsson
patent: 4802798 (1989-02-01), Adamson

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