Low noise air blower unit for inflating blankets

Details Low noise air blower unit for inflating blankets Low noise air blower unit for inflating blankets

1995-09-08

2000-10-03

Kwon, John

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

415206, 607 96, F01D 2504

Patent

active

061263931

ABSTRACT:
An air blower unit operates with reduced noise while providing a stream of warmed air. The blower unit includes a housing with an inlet at a first end and an outlet at a second end. A support positions the housing above a support surface such that the inlet points toward the support surface, and the outlet does not point away from the support surface. A rotatable blower creates an airstream by flowing air into the housing through the inlet and out of the housing through the outlet. The outlet is coupled to a delivery conduit having an elbow that absorbs some noise from the blower, and reflects remaining noise downward. The delivery conduit my be connected to a convective thermal blanket, for example. A motor, mechanically linked to the blower, rotates the blower and resides in the housing upstream of the blower. A heater, interposed between the blower and the motor, heats the fluid stream as it passes the heater.

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