Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Analog-to-digital converter control using signal objects
Powerline communication device with load characterization functionality
Pizza stone
Plasma doping method and plasma doping apparatus
Dynamic lookup service in a distributed system
Community profiling for social media
Triazolylphenyl sulfonamides as serine/threonine kinase inhibitors
  Randomly Featured Patents
Electronic circuitry
Antistatic ceramer hardcoat composition with improved antistatic characteristics
Frequency doubling two-phase clock generation circuit
Non-tracking solar energy collector system
Database system, method, and computer program product for recording entity state and type information for use during subsequent processing of data
Aqueous ink composition and image formation method using the same
Height estimating apparatus
Peptide antibody depletion and its application to mass spectrometry sample preparation
Anti-inflammatory botanical products for the treatment of metabolic syndrome and diabetes
Navigation system