Portable bed warmer

Abstract

The invention provides a portable bed warmer comprising a housing provided with at least one heating element, in combination with a further component selected from the group consisting of a second heating element and a diode, as well as being provided with a blower for directing air to be heated by the elements; the housing being connected to at least one moisture-permeable, air impermeable, washable tube having a plurality of perforations, the tube being of sufficient length to extend along major portions of the periphery of a bed, on which it is positionable between a bottom sheet and a cover blanket to heat the space therebetween; the blower and heating element being operationally connected to thermostatically controlled regulating means for activating and deactivating the at least one heating element and maintaining the temperature passing through the tube at a predetermined level in the range of between 25-40° C.

1 . A portable bed warmer, comprising: 
 a housing provided with at least one heating element, in combination with a further component selected from the group consisting of a second heating element and a diode, as well as being provided with a blower for directing air to be heated by said elements;    said housing being connected to at least one moisture-permeable, air-impermeable, washable tube having a plurality of perforations, said tube being of sufficient length to extend along major portions of the periphery of a bed, on which it is positionable between a bottom sheet and a cover blanket to heat the space therebetween;    said blower and heating element being operationally connected to thermostatically controlled regulating means for activating and deactivating said at least one heating element and maintaining the temperature passing through said tube at a predetermined level in the range of between 25-40° C.    
   
   
       2 . A portable bed warmer as claimed in  claim 1 , wherein said further component is a diode.  
   
   
       3 . A portable bed warmer as claimed in  claim 1 , wherein said tube is made of moisture-absorbing, washable Goretex®.  
   
   
       4 . A portable bed warmer as claimed in  claim 1 , wherein said housing is attached to a manifold feeding two tubes which diverge therefrom and then extend parallel to each other along the peripheral sides of the bed.  
   
   
       5 . A portable bed warmer as claimed in  claim 1 , said bed warmer operating at a wattage of less than 500 W.  
   
   
       6 . A portable bed warmer as claimed in  claim 1 , said bed warmer operating at a wattage of less than 350 W.  
   
   
       7 . A portable bed warmer as claimed in  claim 1 , wherein the temperature of the air passing through said tube is maintained at a predetermined level in the range of between 25-40° C.