Air blower assembly for vacuum cleaner

Details Air blower assembly for vacuum cleaner Air blower assembly for vacuum cleaner

1985-10-01

1988-04-05

Croyle, Carlton R.

Pumps

Successive stages

417423A, 417312, F04B 3504

Patent

active

047355557

ABSTRACT:
An improved blower assembly particularly useful for liquid bath type vacuum cleaners is disclosed. The improved blower assembly features enhanced noise attenuation achieved by providing a four-stage noise reduction system featuring a serpentine airflow path at the blower assembly air inlet and outlet. The four stages of the noise reduction system are comprised of; a noise reduction stage housing, a lower stage assembly, an upper stage assembly, and a motor base, respectively. Improvements in the production assembly techniques of the blower assembly components are further provided through a modified upper stage assembly which is assembled to a motor base component by a partial turn and lock procedure so that the components become firmly locked together and accurately positioned. This production technique can be accomplished quickly without a requirement of a high degree of operator skill.

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Copy of portions of Rexair, Inc. Prior Art Vacuum Blower Unit Assembly taken from Drawing R-2000.

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