Title:
BOLT EXTRACTOR WITH DISTAL END ENGAGEMENT AREAS
Document Type and Number:
WIPO Patent Application WO/2022/165841
Kind Code:
A1
Abstract:
A threaded fastener extractor (110 or 510) includes a drive end configured to interface with a powered driver where the drive end has a shaft, and an engagement end coupled to the drive end coaxial with the drive end about an axis. The engagement end is configured to engage with an extraction hole (330) formed in a threaded fastener (300). The engagement end includes side cutting edges (140 or 530) disposed on lateral sides of the engagement end and end cutting edges (150 or 540) disposed at a distal end of the engagement end. The side cutting edges (140 or 530) and the end cutting edges (150 or 540) each provides engagement areas for torque transfer between the extractor (110 or 510) and the threaded fastener (300).
Inventors:
SHI MINGLIN (CN)
JI JIANGUO (CN)
ZHU LIANSHENG (CN)
JI JIANGUO (CN)
ZHU LIANSHENG (CN)
Application Number:
PCT/CN2021/076030
Publication Date:
August 11, 2022
Filing Date:
February 08, 2021
Export Citation:
Assignee:
APEX BRANDS INC (US)
SHI MINGLIN (CN)
SHI MINGLIN (CN)
International Classes:
B25B27/18
Domestic Patent References:
| WO2019008865A1 | 2019-01-10 |
Foreign References:
| US6176161B1 | 2001-01-23 | |||
| CN203245822U | 2013-10-23 | |||
| CN1951637A | 2007-04-25 | |||
| US6098499A | 2000-08-08 | |||
| US20160082579A1 | 2016-03-24 |
Attorney, Agent or Firm:
BEIJING WANHUIDA LAW FIRM (CN)
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