Resources Contact Us Home
Bed having user variable degree of hardness

Image Number 3 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
Television apparatus
Moulded tie strips
Apparatus and method for layered decoding in a communication system using low-density parity-check codes
Removable storage device and method for identifying drive letter of the removable storage device
Out-of-order load/store queue structure
Vehicle fender
Image processing apparatus, image processing method, and program
  Randomly Featured Patents
Infrared sensing device
Threaded insert for repairing a nuclear assembly
Photoactivatable compositions and to methods for the diagnosis and treating medical conditions
Method for cleaning off-gas flows
Method for production of nuclear halogenated aromatic compound possesing cyano groups
Therapeutic system with energy application device and programmed power delivery
Method and system for programming and controlling an electrosurgical generator system
Card activated cash dispensing automated banking machine system and method
Coordinate input unit
Motor rotational speed control apparatus