Invention Grant
- Patent Title: Wrench extension device
- Patent Title (中): 扳手延伸装置
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Application No.: US14207980Application Date: 2014-03-13
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Publication No.: US09440338B2Publication Date: 2016-09-13
- Inventor: Chappel W. Crawford
- Applicant: Chappel W. Crawford
- Main IPC: B25B17/00
- IPC: B25B17/00 ; B25B13/48 ; B25B23/00

Abstract:
A wrench extension device laterally offsets connection between a socket and a driving tool to facilitate rotation of the socket in tight spaces. The device includes an elongated housing and a first gear rotatably coupled to the housing proximate a first end of the housing. A socket drive is coupled to the first gear for coupling to a socket rotated by the first gear. A second gear is rotatably coupled to the housing proximate a second end of the housing. A receiver extends into the second gear for being engaged by a driving tool wherein the second gear is rotatable by the driving tool. A chain is positioned in the housing engaging the first gear and the second gear wherein rotation of the second gear rotates the first gear.
Public/Granted literature
- US20150258668A1 Wrench Extension Device Public/Granted day:2015-09-17
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