Resources Contact Us Home
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
Arcuate motion control in electrostatic actuators
High-density 3-dimensional structure
Multiple RF band operation in mobile devices
Managing and collaborating with digital content
Plants and seeds of hybrid corn variety CH514730
Luminescent substrate for liciferase
Semiconductor device
  Randomly Featured Patents
System level architectures for relayed uplink communication
Dual alloy turbine wheels
Semiconductor memory device for reducing operating power consumption amount
Accelerator free latex formulations, methods of making same and articles made from same
6,11-Dihydro-11-oxo-dibenzo[b,e]thiepine-2-acetic acids
Portable multi-purpose toolkit for testing computing device hardware and software
Photo alignment material and method of manufacturing display substrate using the same
Electrical connector
Crosslinked polymers, fine polymer particle, and process for producing these
Toothpaste dispenser