US Patent No: 8,033,528
Number of patents in Portfolio can not be more than 2000
Lift assembly, system, and method
Stats
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Oct 11, 2011
Issued date -
Aug 16, 2010
filing date -
12/856,873
serial no -
In Force
status
Importance
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Abstract
A lift assembly system and method can include a substantially rectangular tube, a motor operably connected to first and second traction drives and a rotatable drum and structurally connected to one end of the tube, a head block fixed to the opposite end of the tube, and a plurality of loft blocks positionable at an infinite number of locations within the tube. An elongate member attached on one end to the drum can be routed through a generally horizontal path from the drum to the first and second traction drives, the head block, and the loft blocks, and then through a generally vertical path from the loft block to an attached article. The elongate member can be wound about the drum to raise the article, and unwound from the drum to lower the article. The system can further include a load-side braking mechanism. The tube can include a compressible material adapted to absorb at least a portion of a horizontal load placed on the lift system.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 6,988,716 Modular lift assembly | 14 | 2002 | |
| 6,889,958 Brake for hoist assembly | 24 | 2003 | |
| 6,997,442 Safety sensor for a lift assembly | 12 | 2004 | |
| 2005/0247,919 Intermediate brake for modular lift assembly | 9 | 2005 | |
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| 4,303,237 Arrangement for supporting theatrical equipment | 8 | 1980 | |
| 2004/0098,944 Batten for lift assembly | 9 | 2003 | |
| 2004/0099,852 Modular lift assembly | 9 | 2003 | |
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| 2006/0163,548 Theater Rigging System | 6 | 2005 | |
| 2009/0140,221 Theater Rigging System | 4 | 2009 | |
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| 6,634,622 Modular lift assembly | 15 | 2000 | |
| 6,691,986 Modular lift assembly | 14 | 2002 | |
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| 5,920,476 Computer controlled movement of stage effects and stage installation employing same | 31 | 1996 | |
| 6,385,493 Computer controlled winch assembly for stage | 5 | 2000 | |
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| 2006/0284,151 Hoist Assembly | 4 | 2006 | |
| 7,364,136 Hoist assembly | 7 | 2006 | |
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| 2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM | 3 | 2009 | |
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| 5,829,737 Rope guide for a winch having two interconnected drivable rope guides | 5 | 1997 | |
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| 5,161,104 Amusement ride having pivotable ingress-egress bridges | 6 | 1991 | |
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| 6,443,431 Load compensated right angle diamond screw levelwind | 16 | 2000 | |
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| 2009/0127,527 LIFT ASSEMBLY SYSTEMS AND METHODS | 2 | 2008 | |
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| 5,106,057 Stage set lift apparatus | 14 | 1990 | |
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| 6,209,852 Removable chain hoist position encoder assembly | 8 | 1999 | |
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| 5,829,736 Winch having drum of two diameters for alternative engagement by a line at two speeds | 8 | 1995 | |
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| 4,512,117 Modular proscenium theatre | 19 | 1982 | |
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| 5,280,880 Unitary hoist drum for hoist ropes and an electric cable | 6 | 1991 | |
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| 6,019,353 Winch having a multiple diameter drum | 10 | 1998 | |
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| 6,619,624 Hoisting mechanism | 3 | 2002 | |
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| 6,085,826 Runner with line tensioning capabilities, guide rails for electrically-opened and closed curtains, and guide rails for manually-opened and closed curtains | 10 | 1998 | |
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| 4,575,050 Mobile cable winch | 12 | 1982 | |
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| 4,606,527 Theatre scenery hoisting mechanism | 18 | 1984 | |
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| 7,185,774 Methods and apparatus for manipulation of heavy payloads with intelligent assist devices | 7 | 2003 | |
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| 6,827,121 Assembly power curtain | 4 | 2003 | |
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| 5,950,953 Reel with adjustable fleet angle | 9 | 1998 | |
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| 5,021,954 System and method of providing passenger ingress and egress in an amusement ride | 7 | 1988 | |
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| 4,269,380 Flat type cable suspension structure | 8 | 1978 | |
| 4,767,073 Cable spooling system | 41 | 1986 | |
| 5,758,867 Lifting device for the controlled vertical transfer of objects | 4 | 1997 | |
| 5,947,451 Marine winch drum | 6 | 1997 | |
| 6,520,485 Winch system for raising and lowering theatre scenery | 22 | 2000 | |
| 7,360,576 Electric transmission module for module for window curtains having winding wheel | 5 | 2004 | |
| 7,234,685 Apparatus for raising and lowering a banner | 8 | 2004 | |
| 7,311,297 Electric powered lift with load control | 9 | 2007 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Apr 11, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 11, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 11, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |