Invention Grant
- Patent Title: Spanner with prevention of disengagement of fasteners
- Patent Title (中): 防止紧固件脱开的扳手
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Application No.: US12045492Application Date: 2008-03-10
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Publication No.: US07673542B2Publication Date: 2010-03-09
- Inventor: David Ling , Hsien-Chung Tuan-Mu
- Applicant: David Ling , Hsien-Chung Tuan-Mu
- Applicant Address: US CT Simsbury
- Assignee: Easco Hand Tools, Inc.
- Current Assignee: Easco Hand Tools, Inc.
- Current Assignee Address: US CT Simsbury
- Agency: Nelson Mullins Riley & Scarborough, LLP
- Main IPC: B25B13/02
- IPC: B25B13/02
Abstract:
A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving space. At least one of the grooves includes a closed first end and an open second end.
Public/Granted literature
- US20080148907A1 Spanner With Prevention of Disengagement of Fasteners Public/Granted day:2008-06-26
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