Invention Grant
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
- Patent Title: Asymmetric drag force bearings for use with push-cable storage drums
- Patent Title (中): 不对称牵引力轴承用于推拉电缆存储鼓
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Application No.: US13214208Application Date: 2011-08-21
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Publication No.: US08908027B2Publication Date: 2014-12-09
- Inventor: James F. Kleyn , Eric M. Chapman , Mark S. Olsson , Michael E. Turgeon
- Applicant: James F. Kleyn , Eric M. Chapman , Mark S. Olsson , Michael E. Turgeon
- Applicant Address: US CA San Diego
- Assignee: Seescan, Inc.
- Current Assignee: Seescan, Inc.
- Current Assignee Address: US CA San Diego
- Agent Steven C. Tietsworth, Esq.
- Main IPC: H04N7/18
- IPC: H04N7/18 ; F16C41/00 ; B65H75/44 ; B65H75/36
Abstract:
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.
Public/Granted literature
- US20120211580A1 ASYMMETRIC DRAG FORCE BEARINGS FOR USE WITH PUSH-CABLE STORAGE DRUMS Public/Granted day:2012-08-23
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