Invention Grant
- Patent Title: Steel retainer for rock drill
- Patent Title (中): 钢凿岩机
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Application No.: US10179718Application Date: 2002-06-25
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Publication No.: US07044479B2Publication Date: 2006-05-16
- Inventor: Paul B. Campbell, Jr. , Colin D. Campbell
- Applicant: Paul B. Campbell, Jr. , Colin D. Campbell
- Main IPC: B25D17/08
- IPC: B25D17/08
Abstract:
A simple and positive drill steel retainer comprises a retainer and a latch. The retainer cannot be opened until the latch is disengaged. The latch is held in the engaged position by a spring. The retainer and latch can be easily operated with one hand.
Public/Granted literature
- US20020195779A1 Steel retainer for rock drill Public/Granted day:2002-12-26
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