Invention Grant
- Patent Title: Combination ratcheting wrench with a box-end wrench having an opening
- Patent Title (中): 组合棘轮扳手与带有开口的盒式扳手
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Application No.: US12638995Application Date: 2009-12-16
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Publication No.: US08166849B2Publication Date: 2012-05-01
- Inventor: Shu-Su Chan
- Applicant: Shu-Su Chan
- Main IPC: B25B13/08
- IPC: B25B13/08 ; B25B13/46

Abstract:
A combination open-ended ratcheting wrench with a box-end wrench has a wrench having a wrench head, the wrench head having a first aperture with a first opening, a receptacle formed at an inner wall of the first aperture, at least one limiting groove disposed around the inner wall of the first aperture; a control member pushing against an elastic member acceptable in the receptacle and having a ratcheting surface and a smooth surface, and at least one stopping edge corresponding to and accepting the limiting members; a ratchet disposed in the first aperture and having a ratcheting aperture, the ratcheting aperture having a ratchet opening, a ratcheting pawl formed around an outer circumference of the ratchet and corresponding to the ratcheting surface of the control member; and a rotation cap disposed on the wrench head covering a portion of the ratchet in the first aperture and having a second opening.
Public/Granted literature
- US20110138971A1 COMBINATION RATCHETING WRENCH WITH A BOX-END WRENCH HAVING AN OPENING Public/Granted day:2011-06-16
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