Invention Grant
- Patent Title: Cable tension monitor
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Application No.: US14755820Application Date: 2015-06-30
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Publication No.: US10358317B2Publication Date: 2019-07-23
- Inventor: Edward Thomas Laird , Robert John Olmsted
- Applicant: The Chamberlain Group, Inc.
- Applicant Address: US IL Oak Brook
- Assignee: The Chamberlain Group, Inc.
- Current Assignee: The Chamberlain Group, Inc.
- Current Assignee Address: US IL Oak Brook
- Agency: Fitch Even Tabin & Flannery LLP
- Main IPC: E06B9/322
- IPC: E06B9/322 ; B65H75/44 ; E05D13/00 ; E05D15/24 ; E05F15/686
Abstract:
A sensor apparatus for a movable barrier system having a rotatable drum and an elongate member that winds up on and pays out from an external surface of the rotatable drum. The sensor apparatus includes a base portion, a sensing portion, and a controller. The sensing portion senses a first spaced apart proximity of the elongate member relative to the sensing portion and a second spaced apart proximity of the elongate member relative to the sensing portion. The controller detects a change in the proximity of the elongate member relative to the sensing portion without the elongate member contacting the sensing portion.
Public/Granted literature
- US20170002596A1 Cable Tension Monitor Public/Granted day:2017-01-05
Information query
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