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Browse by Category: Main > Optical & Optics
Class Information
Number: 362/402
Name: Illumination > Supports > Counterbalanced support > Spring counterbalance
Description: Subject matter wherein the force equalizing means is a resilient member.










Patents under this class:

Patent Number Title Of Patent Date Issued
8485713 Oven lamp holder with bayonet lock Jul. 16, 2013
6918689 Pivoting auxiliary vehicle light assembly Jul. 19, 2005
6918686 Assembled lamp retaining device Jul. 19, 2005
6860630 Lamp assembly device with detachable lamp rod Mar. 1, 2005
6814473 Lamp with hinged adjustable arm structure Nov. 9, 2004
6805477 Assembled lamp with detachable lamp rod and lamp seat Oct. 19, 2004
6793380 Adjustable progressive joint-brake system Sep. 21, 2004
6758585 Articulated, adjustable stand Jul. 6, 2004
6676281 Rail lighting system Jan. 13, 2004
6663266 Lighting fixture for optionally positioning lamp device Dec. 16, 2003
6543914 Stand arrangement Apr. 8, 2003
6488387 Adjustable height grow light Dec. 3, 2002
6328458 Support arm for surgical light apparatus Dec. 11, 2001
6074075 Centering device for high mast lighting system Jun. 13, 2000
6027233 Counterbalanced lamp having a resiliently bowed spring lever Feb. 22, 2000
6012821 Support arm for surgical light apparatus Jan. 11, 2000
5971572 Device for angularly positioning a mass relative to a horizontal support axis and a lighting apparatus provided with such a device Oct. 26, 1999
5613771 Swings out of the way articulated magnifying lamp Mar. 25, 1997
5586820 Multidirectional task lamp Dec. 24, 1996
5396409 Halogen lamp Mar. 7, 1995
5339233 Lamp assembly Aug. 16, 1994
5333103 Halogen lamp Jul. 26, 1994
5170975 Articulated arm with spring for counterbalancing Dec. 15, 1992
5147132 Swivel means for lighting fixture Sep. 15, 1992
5065297 Study lamp Nov. 12, 1991
5025359 Counterbalanced arm for a lighthead Jun. 18, 1991
5016153 Articulated arm lamp May. 14, 1991
5003442 Movable lighting apparatus Mar. 26, 1991
4770384 Movable stand Sep. 13, 1988
4744019 Counterbalanced arm assembly May. 10, 1988
4692849 Heat free examination light with fully rotatable head and arm Sep. 8, 1987
4651263 Support of sun tanning canopies Mar. 17, 1987
4600009 Tanning system Jul. 15, 1986
4494177 Articulated task lamp Jan. 15, 1985
4429355 Luminaire raising and lowering system Jan. 31, 1984
4316238 Light fixture and elevator therefor Feb. 16, 1982
4228488 Luminaire raising and lowering system Oct. 14, 1980
4213172 Movable stand, particularly for lampholders and lamp carrier thereon Jul. 15, 1980
4165530 Articulated-arm supporting member, especially for lamps Aug. 21, 1979
4160536 Counterbalanced arm Jul. 10, 1979
4107769 Balanced single horizontal suspension arm Aug. 15, 1978
4080530 Equapoised lamp and new counterbalanced arm assemblies Mar. 21, 1978
3973656 Suspended fixture assembly Aug. 10, 1976











 
 
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