Ratchet wrench head

Details Ratchet wrench head Ratchet wrench head

1997-10-09

1999-04-27

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5713, 81 5729, B25B 1346

Patent

active

058967893

ABSTRACT:
The present invention relates generally to pneumatic ratcheting mechanisms and in particular to a device to aid in shank spindle retainment during ratchet resetting. According to the present invention, at least one recess is provided in the shank spindle of a ratchet head to receive a spring therein. The end of the spring is compressed against an interior surface of the ratchet head to frictionally retain the shank spindle and pawl of the ratchet during the resetting stroke of the ratchet yoke.

REFERENCES:
patent: 4346630 (1982-08-01), Hanson
patent: 4791836 (1988-12-01), D'Haem et al.
patent: 5142952 (1992-09-01), Putney et al.
patent: 5584220 (1996-12-01), Darrah et al.

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