Invention Grant
- Patent Title: Loft block with aligned sheaves
- Patent Title (中): 带对准滑轮的阁楼
-
Application No.: US14343066Application Date: 2012-10-26
-
Publication No.: US09242186B2Publication Date: 2016-01-26
- 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
- International Application: PCT/US2012/062131 WO 20121026
- International Announcement: WO2013/063400 WO 20130502
- Main IPC: A47H1/10
- IPC: A47H1/10 ; A63J1/02 ; B66D1/60 ; F16M13/02 ; B66D1/36 ; B66D1/28

Abstract:
A lift system configured to lift an article (e.g., a batten). The lift system includes a first cable configured to be coupled to the article, a second cable configured to be coupled to the article, a drive mechanism coupled to the first cable and the second cable and operable to raise and lower the article, a first loft block including a first loft sheave to redirect the first cable from a first substantially horizontal axis to a first substantially vertical axis, and an idler sheave to direct the second cable along a second substantially horizontal axis. The lift system further includes a second loft block including a second loft sheave to redirect the second cable from the second substantially horizontal axis block to a second substantially vertical axis.
Public/Granted literature
- US20150083879A1 LOFT BLOCK WITH ALIGNED SHEAVES Public/Granted day:2015-03-26
Information query