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
Method of and apparatus for image denoising
Implantable defibrillator systems and methods with mitigations for saturation avoidance and accommodation
High-density 3-dimensional structure
Systems and methods for identifying malicious domains using internet-wide DNS lookup patterns
Print system
Information-provision control method, information reproduction system, information-provision apparatus, information reproduction apparatus and information-presentation control program
Electrode material and use thereof for production of electrochemical cells
  Randomly Featured Patents
Thermal printer apparatus
Image forming apparatus and image forming method
Automated inspection of capsule seals
Non-volatile semiconductor memory device
Method and apparatus for rounding lumps of dough
Extension of pot life of HTPB composite propellants by phosphine oxides
Shingle removal tool
Position control unit for lens of optical pickup device
Method and system for a PKI-based delegation process
Manufactured seed cotyledon restraint