Invention Grant
- Patent Title: Lift assembly systems and methods
- Patent Title (中): 提升组装系统和方法
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Application No.: US13656995Application Date: 2012-10-22
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Publication No.: US08613428B2Publication Date: 2013-12-24
- Inventor: Donald A. Hoffend, III
- Applicant: Electronic Theatre Controls, Inc.
- Applicant Address: US WI Middleton
- Assignee: Electronic Theatre Controls, Inc.
- Current Assignee: Electronic Theatre Controls, Inc.
- Current Assignee Address: US WI Middleton
- Agency: Michael Best & Friedrich LLP
- Main IPC: B66D1/30
- IPC: B66D1/30

Abstract:
A lift assembly system and method can include: a funnel-shaped drum having a constant diameter portion and a gradually increasing diameter portion; a cable management system adapted to position a cable in a single layer in a tray; a beam clamp tube receiver adapted to allow a tube to slide relative to a beam and be secured to the beam; a cable keeper and a slack line detector adapted to maintain cables in position about a drum upon loss of cable tension; a horizontally oriented low profile cable adjuster adapted to adjust the length of a cable; an overspeed braking mechanism; a fleet pivot arm pivotable on the end of a tube so as to guide cables along a desired fleet angle; and/or a pull-type load sensor connected between a tube and a drum adapted to sense changes in a load force and adjust movement of a load.
Public/Granted literature
- US20130043449A1 LIFT ASSEMBLY SYSTEMS AND METHODS Public/Granted day:2013-02-21
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