Air blower assembly for vacuum cleaners

Details Air blower assembly for vacuum cleaners Air blower assembly for vacuum cleaners

1988-03-18

1989-04-25

Croyle, Carlton R.

Pumps

Motor driven

Including means for facilitating assembly or disassembly of...

4174232, 4174242, 403349, 415219C, F04B 3914

Patent

active

048243337

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 featureing 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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