Ratchet wrench having a sealing structure

Details Ratchet wrench having a sealing structure Ratchet wrench having a sealing structure

2006-01-03

2006-01-03

Hail, III, Joseph J (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S060000, C081S061000

Reexamination Certificate

active

06981435

ABSTRACT:
A ratchet wrench includes a wrench body having a drive head formed with a receiving recess, a ratchet wheel rotatably mounted in the receiving recess of the drive head, a positioning member secured in the receiving recess of the drive head and secured on the ratchet wheel to retain the ratchet wheel in the receiving recess of the drive head, and an oil seal secured in the receiving recess of the drive head and enclosed around the positioning member. Thus, the positioning member is a C-shaped snap that can abut and press the oil seal so as to position the oil seal actually, so that the oil seal has a better positioning effect.

REFERENCES:
patent: 3713356 (1973-01-01), Knudsen
patent: 4634097 (1987-01-01), Hubertson
patent: 4645362 (1987-02-01), Orte
patent: 5848561 (1998-12-01), Hsieh

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