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Class Information
Number: 362/401
Name: Illumination > Supports > Counterbalanced support
Description: Support comprising (1) supporting structure, such as a rod, which is supported by a fulcrum at some point between its ends, one portion of the rod between the fulcrum and an end of the rod being adapted for supporting the light source or light modifier and another portion of the rod between the fulcrum and the other end of the rod having means, usually adjustable for equalizing the otherwise upsetting force of the weight of the light source or modifier in order to position the light source or modifier, or (2) a system of ropes and pulleys, one end of the rope having the light source or modifier attached thereto and another end having balancing means for equalizing the force tending to move the light source.










Sub-classes under this class:

Class Number Class Name Patents
362/402 Spring counterbalance 43


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8584994 Floor stand with angled arm for microscope Nov. 19, 2013
8485699 Self-righting light fixture Jul. 16, 2013
8348480 Adjustable structure for lamp stand Jan. 8, 2013
8177399 Desk lamp with parallel guidance May. 15, 2012
8152344 Double-shaft hinge and lamp using the same Apr. 10, 2012
7419283 Electrical decoration lighting device and set of such devices Sep. 2, 2008
6871985 Portable outdoor post lighting fixture Mar. 29, 2005
6811281 Night light in combination with a patterned board Nov. 2, 2004
6808291 Safety/warning device Oct. 26, 2004
6767116 Lighting fixture assembly Jul. 27, 2004
6736528 Electronically controlled stage lighting system May. 18, 2004
6715905 Lighting apparatus Apr. 6, 2004
6592241 Articulated arm light Jul. 15, 2003
6554459 Support bracket for light stand Apr. 29, 2003
6543914 Stand arrangement Apr. 8, 2003
6471363 Surgical theater system having light, monitors, and cameras Oct. 29, 2002
6382823 Vehicular headlamp having reduced case formation May. 7, 2002
6322053 Balancing system with a force multiplying device Nov. 27, 2001
5911495 Plant lamp fixture Jun. 15, 1999
5690426 Reading lamp assembly removably and adjustably attachable to a torchiere-type lamp Nov. 25, 1997
5613771 Swings out of the way articulated magnifying lamp Mar. 25, 1997
5607217 Illumination system Mar. 4, 1997
5590956 Self-positioning lamp fixture with stabilizing base Jan. 7, 1997
5586820 Multidirectional task lamp Dec. 24, 1996
5564822 Lantern stand Oct. 15, 1996
5544851 Bracket for exterior mountings on buildings Aug. 13, 1996
5490051 Self-positioning lamp fixture with integrally formed unitary support structure Feb. 6, 1996
5448464 Lamp stands Sep. 5, 1995
5381325 Self-positioning lamp fixture with stabilizing base Jan. 10, 1995
5373424 Automotive projection headlamp Dec. 13, 1994
5222806 Lamp Jun. 29, 1993
5158361 Structure of lamp frame assembly Oct. 27, 1992
5134555 Self positioning lamp fixture Jul. 28, 1992
5101332 Retractable device for a desk lamp Mar. 31, 1992
5062029 Adjustable spotlight Oct. 29, 1991
5050054 Illumination apparatus adjusting structure Sep. 17, 1991
5031085 Light tower apparatus Jul. 9, 1991
5012398 Light bar leveler Apr. 30, 1991
5001617 Self-balanced, multiposition holder Mar. 19, 1991
4974135 Structure of adjustable desk lamp Nov. 27, 1990
4918319 Tanning bed with closure control mechanism Apr. 17, 1990
4782428 Collapsible fluorescent light for photography Nov. 1, 1988
4697590 Apparatus for treating athlete's foot Oct. 6, 1987
4661895 Adjustable counterbalanced arm assembly for an electric lamp Apr. 28, 1987
4651263 Support of sun tanning canopies Mar. 17, 1987
4592177 Column-mounted appliances Jun. 3, 1986
4581689 Lamp Apr. 8, 1986
4538215 Halide and like light reflector and socket assembly Aug. 27, 1985
4494177 Articulated task lamp Jan. 15, 1985
4463413 Adjustable photographic light stand Jul. 31, 1984

1 2










 
 
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