Open-end ratchet watch

Details Open-end ratchet watch Open-end ratchet watch

1988-04-25

1989-07-18

Meislin, Debra

Tools

Wrench, screwdriver, or driver therefor

Pivoted side jaw

81126, B25B 1328

Patent

active

048481939

ABSTRACT:
An open-end ratchet wrench includes a handle element, a first jaw portion which is integrally formed with the handle element, a slide portion, a second jaw portion which is integrally formed with the slide portion, a restricting mechanism and a biasing spring. The slide portion is slidably mounted on the handle element so that the second jaw portion is positionable in a normal position wherein the first and second jaw portions cooperate to define a mouth for receiving the head of a fastening element and the biasing spring biases the second jaw portion toward the normal position thereof. The restricting mechanism maintains the second jaw portion in the normal position thereof when the wrench is manipulated to rotate the head of a fastening element in a first direction so that a turning force is applied to the fastening element. However, the restricting mechansim permits the second jaw portion to be moved outwardly from the first jaw portion when the wrench is rotated in an opposite second direction so that the head of the fastening element can rotate between the first and second jaw portions.

REFERENCES:
patent: 3641847 (1972-02-01), Horton
patent: 3901106 (1975-08-01), Causey

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