Invention Grant
- Patent Title: Direct tension multi-color indicating washers
- Patent Title (中): 直接张力多色指示垫圈
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Application No.: US12780145Application Date: 2010-05-14
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Publication No.: US08382409B2Publication Date: 2013-02-26
- Inventor: Ivan Wayne Wallace
- Applicant: Ivan Wayne Wallace
- Applicant Address: US VT Rockingham
- Assignee: Applied Bolting Technology Products, Inc.
- Current Assignee: Applied Bolting Technology Products, Inc.
- Current Assignee Address: US VT Rockingham
- Agency: Cantor Colburn LLP
- Main IPC: F16B31/02
- IPC: F16B31/02
Abstract:
A direct tension indicating washer includes a first surface having a plurality bumps formed thereon; a second surface having a plurality of discrete indentations, each indentation formed opposite one of said protuberances; an indicating material positioned in at least one indentation, the indicating material including an indicating material having a first color and an indicating material having a second color; and a channel leading from the at least one indentation to an outer edge of said direct tension indicating washer.
Public/Granted literature
- US20110123288A1 Direct Tension Multi-Color Indicating Washers Public/Granted day:2011-05-26
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