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Class Information
Number: 5/164.1
Name: Beds > Bedsteads > Upending > Counterbalance spring
Description: Device comprising spring biasing means associated with an upendable section which counteracts a portion of the section"s weight and assists or cushions the upending operation.

Sub-classes under this class:

Class Number Class Name Patents
5/165 Tension bottom 0

Patents under this class:

Patent Number Title Of Patent Date Issued
8566980 Folding bed with a control lever arranged between a cabinet unit and a head part Oct. 29, 2013
7921487 Tilting furniture system and infinitely variable lift tensioning mechanism therefor Apr. 12, 2011
7398566 Foldaway bed frames and spring supports Jul. 15, 2008
7367069 Lifting mechanism for a bed deck May. 6, 2008
6691342 Convertible furniture Feb. 17, 2004
6574807 Furniture bed Jun. 10, 2003
6401276 Transfigurable furniture unit Jun. 11, 2002
6231114 Autonomous counterbalanced bed frame assembly for trailers having counterbalance means pushing toward a rear wall of the trailer May. 15, 2001
6185764 Motorized folding bed Feb. 13, 2001
6105185 Adjustable counterbalance assembly for panel bed Aug. 22, 2000
5978988 Frame for pivoting folding furniture having varying counterbalancing torque values Nov. 9, 1999
5446932 Folding wall bed Sep. 5, 1995
5353452 Folding bed assembly Oct. 11, 1994
5136737 Self standing convertible furniture frame assembly Aug. 11, 1992
5084924 Mounting apparatus for wall beds with safety jamming feature Feb. 4, 1992
5036558 Wall bed imitation fireplace Aug. 6, 1991
5027452 Load repositioning device Jul. 2, 1991
4974271 Mounting apparatus for wall beds Dec. 4, 1990
4766623 Spring counterbalanced folding wall bed Aug. 30, 1988
4736476 Wall bed mechanism Apr. 12, 1988
4679787 Combined exercise station and sleeping bed Jul. 14, 1987
4597568 Adjustable torsion bar assembly Jul. 1, 1986
4589152 Fold-away bed assembly May. 20, 1986
4564964 Retaining element for swinging weights Jan. 21, 1986
4476592 Convertible furniture with force equilibrium and latch mechanism Oct. 16, 1984
4466147 Bed unit Aug. 21, 1984
4449263 Powered folding support structure May. 22, 1984
4370766 Panel bed and counterbalancing mechanism for panel bed Feb. 1, 1983
4350382 Balancing device and foldable platform sideboard Sep. 21, 1982
4337670 Yieldable multi-function linkage apparatus for powered pivoting loads Jul. 6, 1982
4329746 Folding bed-frame member and bed assembly May. 18, 1982
4234979 Folding bed-frame member and bed assembly Nov. 25, 1980
4104749 Electrically adjustable bed frame Aug. 8, 1978
4058861 Cabinet Nov. 22, 1977
3999245 Counterbalance hinge for pivoting loads Dec. 28, 1976

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