Tap wrench

Details Tap wrench Tap wrench

1990-06-04

1991-01-15

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Means to drive tool

Universal or flexible drive connection to rotate tool

10129M, 8117775, 279 16, 408241R, 464136, B23G 126

Patent

active

049849425

ABSTRACT:
A tap wrench comprising a handle portion and a chuck is provided with a joint arrangement that allows for axial misalignment of the handle portion and the chuck. The joint comprises a stem that extends from the chuck and provides four planar pins equidistantly spaced thereabout which slidably engage four slots equidistantly spaced about a central opening defined in the handle portion. The stem is retained within the central opening by the engagement of each pin in a respective slot. Oscillation of the stem within the central opening provides for the above-noted axial misalignment.

REFERENCES:
patent: 944228 (1909-12-01), Bambridge
patent: 1155796 (1915-10-01), Cleveland
patent: 1506331 (1924-08-01), Benko
patent: 1643855 (1927-09-01), Peterson
patent: 2381102 (1945-08-01), Boyd
patent: 2499569 (1950-03-01), Cooley
patent: 2526105 (1950-10-01), Adams
patent: 2636361 (1953-04-01), Holden
patent: 2775912 (1957-01-01), Skage
patent: 2987334 (1961-06-01), Wendling
patent: 4114401 (1978-09-01), Van Hoose
patent: 4687384 (1987-08-01), McCoy

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