Patent · US Active

Ratchet mechanism

US7793568B2 · kind B2 · utility

6Cited by

9References

20Claims

0Family size

Assignee

NMTC, Inc. · US

Inventors

Jeff Mitcheltree · Cuyahoga Falls, US
John Horvath · Cuyahoga Falls, US

Key dates

Filing date	Jul 16, 2008
Grant date	Sep 14, 2010
Priority date	—
Expiry date	Oct 13, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25B13/465
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A ratchet wrench assembly having a spring assembly positioned in the ratchet head. The ratchet wrench has a handle portion, a head portion with a yoke having yoke teeth, a ratchet mechanism drive body positioned in the head portion, and one or more pawls positioned in the drive body. The yoke is capable of reciprocating between movement with the pawls of the drive body operatively engaging the yoke teeth and movement with the pawls of the drive body disengaged from the yoke teeth. The spring assembly is positioned in the drive body and is capable of retaining the drive body in position when the yoke reciprocates from a first direction to a second direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.