Portable electric blower

Details Portable electric blower Portable electric blower

1987-06-19

1989-01-10

Freeh, William L.

Pumps

Motor driven

Electric or magnetic motor

15326, 15353, F04B 3504, A47L 522

Patent

active

047970723

ABSTRACT:
The invention concerns an air blower including a centrifugal fan which is driven by an electric motor. The blower has a two-part blower housing comprising an upper housing which encloses the motor beneath the motor cap and a lower housing. The centrifugal fan is disposed in the chamber between the upper and lower housings. The plenum around the fan leads to an outlet from the blower. An intake shield extends across and blocks undesired entrance of objects into the inlet opening in the bottom of the lower housing. The blower may be seated on a lid across an opening in it. An adapter in the lid receives the intake shield and has its own air inlet to the blower. The orientation of the blower with respect to the lid is rotatable. Cooperating flanges on the blower and the adapter hold the blower to the lid at two rotative locations and a button latch arrangement latches the blower at each of the two arrangements. Between the two latched orientations, the blower may be lifted free of the lid.

REFERENCES:
patent: 1320224 (1919-10-01), Garman
patent: 1991859 (1935-02-01), Lofgren
patent: 2034373 (1936-03-01), Bilde
patent: 2114780 (1938-04-01), Juelson
patent: 2886127 (1959-05-01), Brock
patent: 3220638 (1965-11-01), Petersen
patent: 3906584 (1975-09-01), Hult
patent: 4088424 (1978-05-01), Hyatt et al.
patent: 4111615 (1978-09-01), Watanabe
patent: 4325163 (1982-04-01), Mattson et al.
patent: 4356591 (1982-11-01), Lude
patent: 4512713 (1985-04-01), Berfield
patent: 4538971 (1985-09-01), Miller et al.

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