Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Bed having user variable degree of hardness










Image Number 2 for United States Patent #5504952.

A bed including a base, a mattress overlying the base and apparatus for varying the hardness of the bed to take into account the changing personal circumstances of the user, for example, aging, gaining weight etc. and to compensate for the wear and tear on the mattress. The base includes a generally rectangular frame and a plurality of crosspieces traversing thereacross such that the hardness of the bed is varied by varying the number of crosspieces. The mattress includes a filling in which its hardness is varied by varying the amount of the filling, its components or adjusting the packing density of a composite filling having a foam substrate with a plurality of substantially incompressible marble-size balls embedded therein.








 
 
  Recently Added Patents
Bio-stimulant for improved plant growth and development
Nestable shallow container
Undercabinet plug-in mount
Light irradiation element, image forming structure, and image forming apparatus
Materials for organic electroluminescent devices containing substituted 10-benzo[c]phenanthrenes
Produce container and lid assembly
Simplified algorithm for abnormal situation prevention in load following applications including plugged line diagnostics in a dynamic process
  Randomly Featured Patents
Rotary fitting for a corner cupboard
Method for suppressing nonspecific hybridization in primer extension method
Actuator mounting assembly
Kit for facilitating the formation of a frozen surface and method of forming a frozen surface using the kit
Air hockey table that produces atomized gas
Failure diagnostic device of evaporative gas purge control system
Crosslinked products of biopolymers containing amino groups
Liquid dispenser
Faucet
Electrical component container assembly having detachable installable cases