System for controlling the position of an inflatable bedrest positioned under a mattress

A system for controlling the position of an inflatable bedrest comprising;

• a pair of inflatable bladders, each having an air supply hose connected to a compressor assembly;
• said compressor assembly comprising a first chamber having an air intake, a centrifugal blower and a motor, and a smaller second chamber having a valve assembly interconnected to said first chamber and an air outlet connected to said air supply hose;
• said valve assembly having a valve positioned in said second chamber between said first chamber and said second chamber for allowing compressed air to pass into the valve assembly and a relief valve;
• a controller including a microprocessor in communication with said motor for controlling the operation of said motor, wherein said microprocessor includes a stored table containing a plurality of values each representing a value for inflation of the bladder to place the bed rest at a position;
• and
• an interface associated with said microprocessor having at least one selector for providing commands to said microprocessor, wherein a position for the bedrest can be selected by commanding said microprocessor to retrieve a stored value representing the selected position and said microprocessor controlling said motor to inflate said bladders based on the selected stored value to place the bed at the selected position.

A compressor assembly for use with adjustable bedrest comprising:

• a first chamber having an air intake, a centrifugal blower and a motor;
• a smaller second chamber having a valve assembly interconnected to said first chamber and an air out connectable to an air supply hose;
• said valve assembly having a valve positioned in said second chamber between said first chamber and said second chamber for allowing compressed air to pass into the valve assembly and a relief valve;
• and
• a microprocessor in communication with said motor for controlling the operation of said motor, wherein said microprocessor includes a stored table containing a plurality of values each representing a value for inflation of the bladder to place the bed rest at a position.