Invention Grant
- Patent Title: Ratcheting open end wrench
- Patent Title (中): 棘轮开口扳手
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Application No.: US13562856Application Date: 2012-07-31
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Publication No.: US08904908B1Publication Date: 2014-12-09
- Inventor: John Richard Luhman
- Applicant: John Richard Luhman
- Applicant Address: US OK Norman
- Assignee: Toolsmart, LLC
- Current Assignee: Toolsmart, LLC
- Current Assignee Address: US OK Norman
- Agent Molly D. McKay
- Main IPC: B25B13/46
- IPC: B25B13/46 ; B25B13/08 ; B25B13/04

Abstract:
An open-end ratcheting tool with handle for rotating hardware located within a circular enclosure of the tool. The void in the tool houses a spring attached to a tang of a pawl for biasing the pivoting pawl toward the hardware. A beveled tip provided on the pawl for engaging the hardware. A stop provided on the body, a notch in the void, and a mating tang on the pawl collectively maintain the off-center characteristic of the pawl and prevent pawl kick out under severe torque demand. An optional opener can be provided for manually drawing the pawl in an open configuration, and an optional center guide-ring can be provided on the inside of the hardware void to position the tool relative to the hardware. An alternate closed end version of the tool can be constructed, and the pawl can be repositioning for use on round hardware.
Information query