Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Household
Class Information
Number: 5/56
Name: Beds > Sofa bed > Bed element > Assisting spring
Description: Devices comprising springs employed in sofa beds to counterbalance the weight of moving parts and assist in opening and closing movements.










Patents under this class:

Patent Number Title Of Patent Date Issued
5257424 Foldable bed Nov. 2, 1993
4999865 Foldable bed assembly Mar. 19, 1991
4619005 Waterbed, sofa and table Oct. 28, 1986
4592102 Mechanism for a sofa sleeper Jun. 3, 1986











 
 
  Recently Added Patents
Vacuum cleaner filter adapter ring
Washing machine
Distortion estimation for quantized data
Manufactured product configuration
Image processing apparatus, image registering method, program causing computer to execute image registering method, and recording medium in which program is recorded
Catecholic butanes and use thereof for cancer therapy
Cell transport system comprising a homogeneous mixture of agarose and agarase
  Randomly Featured Patents
Chandelier
Adjustable safety bumper
Biodegradable microparticles that stabilize and control the release of proteins
Reinforced sidings
Wheel
Condition detector and prioritizer with associativity determination logic
Steerable bit system assembly and methods
Toothbrush holder for upright toothpaste dispenser
Valve body
Method and apparatus for controlling ultrasound system display