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
Power device and method of packaging same
Ink composition, ink for inkjet recording and ink set using the ink
Power conversion device and method for controlling thereof
Off-loading of processing from a processor blade to storage blades based on processing activity, availability of cache, and other status indicators
Ejection station
Method of fabricating solid electrolytic capacitor and solid electrolytic capacitor
Power control arrangement for long term evolution time division duplex method and apparatus
  Randomly Featured Patents
Artifact removal method and system for contoured images and video
Method of bonding single crystal quartz by field-assisted bonding
Programmable digital equalization control circuitry and methods
Domestic water filtration apparatus
Container with nozzle cap
Method and apparatus for conformal radiation therapy
Condensed oximeter system with noise reduction software
System LSI
Electrical contact components for gate switch
Encapsulated toner compositions