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
Method for determining an object class of an object, from which light is emitted and/or reflected to a vehicle
Methods and systems for adapting a user environment
Method and apparatus for controlling power supply
Digital broadcasting transmission and reception system, and a signal processing method using turbo processing and turbo decoding
Fused thiazole derivatives as kinase inhibitors
Gemstone
Method and apparatus for organizing segments of media assets and determining relevance of segments to a query
  Randomly Featured Patents
Director-diffuser for a fire hydrant
Process for the continuous preparation of mono- and/or bis(mono-and/or di-and/or trichloromethyl) benzenes
Enhanced performance connector
Automatic variable image shift for precut tabs
Modified bacteriocins and methods for their use
Loading arrangement in a paper machine doctor
Precious metal recovery process from sulfide ores
Device for shaping a bell end to a tube
Spatial index compression through spatial subdivision encoding
Resin molding apparatus