Pumps – Condition responsive variable volumetric capacity expansible... – Valved clearance chamber
Patent
1997-08-08
2000-08-01
Thorpe, Timothy S.
Pumps
Condition responsive variable volumetric capacity expansible...
Valved clearance chamber
F04B 2100
Patent
active
06095762&
ABSTRACT:
An inflator mechanism has a valve adapted to secure with the device to be inflated. A compressor is fluidly coupled with the valve mechanism. The compressor mechanism generates fluid to inflate the device. The compressor mechanism includes a motor to drive a piston, a piston, a piston cylinder, an outlet coupled between the piston cylinder and the valve, and a housing. A biasing spring is positioned in the housing to exert a force on the cylinder. The biasing force maintains the cylinder in a first position when the fluid in the cylinder is at a low pressure. The cylinder moves in the housing against the force of the biasing spring to a second position when the fluid in the cylinder is at a high pressure. A displacement control valve is associated with the cylinder to control the fluid displacement of the compressor. Thus, at low pressure, fluid displacement is high and as pressure in the cylinder increases, the fluid displacement is reduced. A power source is coupled to drive the motor of the compressor.
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Black & Decker Inc.
Nguyen Liem
Thorpe Timothy S.
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