发明授权
US08908027B2 Asymmetric drag force bearings for use with push-cable storage drums
有权
不对称牵引力轴承用于推拉电缆存储鼓
- 专利标题： Asymmetric drag force bearings for use with push-cable storage drums
- 专利标题（中）： 不对称牵引力轴承用于推拉电缆存储鼓
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申请号： US13214208申请日： 2011-08-21
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公开(公告)号： US08908027B2公开(公告)日： 2014-12-09
- 发明人: James F. Kleyn , Eric M. Chapman , Mark S. Olsson , Michael E. Turgeon
- 申请人： James F. Kleyn , Eric M. Chapman , Mark S. Olsson , Michael E. Turgeon
- 申请人地址： US CA San Diego
- 专利权人： Seescan, Inc.
- 当前专利权人： Seescan, Inc.
- 当前专利权人地址： US CA San Diego
- 代理商 Steven C. Tietsworth, Esq.
- 主分类号： H04N7/18
- IPC分类号： H04N7/18 ; F16C41/00 ; B65H75/44 ; B65H75/36
摘要：
A pipe inspection system may include a cable storage drum and a length of resilient flexible push-cable. An asymmetric bearing device supports the cable storage drum for rotation about the rotational axis in a pay-out direction and an opposite pay-in direction. In one embodiment, the asymmetric bearing device automatically decreases, without the for manual adjustment, an amount of friction exerted against rotation of the cable storage drum upon reversal of the direction of rotation of the cable storage drum from the pay-out direction to the pay-in direction.