Wrench with pivotable ratcheting open end wrench head

Patent No. 9,302,373

Issued: April 5, 2016
Filed: February 22, 2013
Term Extension: 321 days

Inventor: Johnson; Deron (Marathon, NY)

A wrench includes a wrench shaft and a wrench head pivotally mounted on the first end of the wrench shaft. The wrench head includes a pair of protrusions with engaging surfaces and a plurality of ratchet teeth arranged radially around a pivot hole. A pawl including a plurality of pawl teeth is mounted in a machined slot in the wrench shaft. A biasing element biases the pawl teeth toward engagement with the ratchet teeth. A reset mechanism is coupled to the pawl. A method of rotating a rotary fastener around a threaded shaft includes rotating a wrench shaft with respect to a wrench head such that the ratchet mechanism ratchets at least one step, where the wrench head is laterally removable from the rotary fastener by way of the slot regardless of the position of the wrench head within the range of motion of the wrench head.


This application claims one or more inventions which were disclosed in Provisional Application No. 61/619,069, filed Apr. 2, 2012, entitled "WRENCH WITH PIVOTABLE RATCHETING OPEN END WRENCH HEAD". The benefit under 35 USC 119(e) of the United States provisional application is hereby claimed, and the aforementioned application is hereby incorporated herein by reference.

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