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Class Information
Number: 472/78
Name: Amusement devices > Illusion or stage device > Stage apparatus or setting > Shifting scenery or curtain > Hoisting apparatus
Description: Amusement device wherein the means to move or relocate a movable stage scenery element, drape, or screen comprises a mechanically operated means to raise, lower, rearrange, or otherwise move the stage scenery element, drape, or screen from one position to another position.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7534173 |
Spreader plate assembly for counterweight arbor |
May. 19, 2009 |
| 6855063 |
Arbor guide shoe assembly for counterweight system |
Feb. 15, 2005 |
| 6729605 |
Cable winch hoisting device for stages |
May. 4, 2004 |
| 6547670 |
Stage element movement assembly |
Apr. 15, 2003 |
| 5996970 |
Motorized assist counterweight system for theatrical overhead rigging |
Dec. 7, 1999 |
| 5711713 |
Modified theatrical counterweight apparatus |
Jan. 27, 1998 |
| 5354238 |
Levitation apparatus |
Oct. 11, 1994 |
| 4795405 |
Structural member with forward guide and rearward mounting components |
Jan. 3, 1989 |
| 4783934 |
Free-standing assembly and method for making same |
Nov. 15, 1988 |
| 4606527 |
Theatre scenery hoisting mechanism |
Aug. 19, 1986 |
| 4600085 |
Platform lift |
Jul. 15, 1986 |
| 4324386 |
Battens system for raising and lowering sceneries or similar loads on a stage |
Apr. 13, 1982 |
| 4303237 |
Arrangement for supporting theatrical equipment |
Dec. 1, 1981 |
| 4199133 |
Battens system for raising and lowering sceneries on a stage |
Apr. 22, 1980 |
| 4101005 |
Water powered lift for speakers apparatus |
Jul. 18, 1978 |
| 4090692 |
Cable gathering and orienting assembly |
May. 23, 1978 |
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