发明授权
- 专利标题: Mineral cutter pick
- 专利标题(中): 矿物切割机
-
申请号: US823319申请日: 1986-01-28
-
公开(公告)号: US4657308A公开(公告)日: 1987-04-14
- 发明人: William S. Clapham
- 申请人: William S. Clapham
- 申请人地址: GB2 Sheffield
- 专利权人: Hall & Pickles Limited
- 当前专利权人: Hall & Pickles Limited
- 当前专利权人地址: GB2 Sheffield
- 优先权: GBX8504668 19850222
- 主分类号: E21C35/187
- IPC分类号: E21C35/187 ; E21C35/22 ; E21F5/02
摘要:
A mineral cutter pick 1 comprises a head 2 terminating at one end thereof in a hard material tip 3, an integral shank 4 extending from the head 2 in a direction away from the tip 3, at least one laterally extending shoulder 5 provided on the head 2, and a bore 6 extending through the shoulder 5, generally in the longitudinal direction 8 of the pick 1, through which bore 6 a water spray or jet may be passed.
公开/授权文献
- US5918386A Snowboarding shoe 公开/授权日:1999-07-06
信息查询