Invention Grant
- Patent Title: Compact hoist accessories and combination systems
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Application No.: US14941658Application Date: 2015-11-15
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Publication No.: US10399832B2Publication Date: 2019-09-03
- Inventor: Donald Aloysius Hoffend, Jr. , Donald Aloysius 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: B66D5/16
- IPC: B66D5/16 ; B66D1/28 ; B66D1/26 ; B66D1/39 ; B66D1/56 ; A63J1/02 ; B66D1/54

Abstract:
A hoist system having a drum primarily self-contained within a batten, for raising and lowering lighting, sound equipment, curtains and the like, often in a performance environment. The compact system is highly scalable to a variety of spaces and applications, including school and public theaters and concert halls, as well as some homes, private business, etc. The hoist system may be adapted with safety mechanisms including an overspeed detector, which may comprise a centrifugal detection mechanism coupled to an elongate member of the system; dampening means; a compact mechanism for trimming or adjusting an operative length of elongate member; stabilizing pipe shaft bearings; elongate member diverter pulley mechanisms load balancing termination points. Additional features include various alternative combination hoist implementations and orientations, and alternative incorporated attachment mechanisms for use with the hoist system.
Public/Granted literature
- US20170137266A1 COMPACT HOIST ACCESSORIES AND COMBINATION SYSTEMS Public/Granted day:2017-05-18
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