Resources Contact Us Home
Waterbed mattress with equalized edge support

Image Number 2 for United States Patent #5172438.

Waterbed and mattress having a pair of elongated buoyant members are near the side edges of the mattress to provide additional support for a person resting near the edges of the bed. This additional support tends to equalize the support provided along the edge and toward the middle of the mattress so that a person resting near the edge remains in a level position. In the disclosed embodiments, the buoyant members are fabricated of a closed cell polyethylene foam and are attached to a wave reducing baffle structure which is also included in the mattress.

  Recently Added Patents
Method and apparatus for efficient signaling and usage of resources for wireless communications supporting circuit switched and packet switched sessions
Multi-feeder power monitor
Semiconductor device and method for fabricating the same
Control apparatus for internal combustion engine
Beverage cartridge
High voltage fault current limiter having immersed phase coils
Providing enhanced content
  Randomly Featured Patents
Thermal recording material
Adjustable beam flashlight
Threaded fastener removing tool
Air-fuel mixture valve and method of determining magnetic force of electromagnetic coil for opening the air-fuel mixture valve
Method and apparatus for disturbance detection
Active-matrix circuit board and display
Computer compiler optimizer for reducing computer resource consumption during dependence analysis after loop unrolling
Mixing machine
Semiconductor device having sense amplifier
Method for making collector up bipolar transistors having reducing junction capacitance and increasing current gain