Blower-vacuum apparatus

Details Blower-vacuum apparatus Blower-vacuum apparatus

1987-07-23

1988-12-20

Freeh, William L.

Pumps

Ambulant, body supported, or with carrying handle

417364, F04B 3500, F04B 3506

Patent

active

047922869

ABSTRACT:
The invention is directed to an improved blower-vacuum apparatus or unity which relies on the judicious placement of the components to reduce or eliminate vibration and rotation forces thereby contributing greatly to operator comfort.

REFERENCES:
patent: 1364360 (1921-01-01), Emery
patent: 1740918 (1929-12-01), Clarke
patent: 3266428 (1966-08-01), Feith et al.
patent: 4288013 (1981-09-01), Wapier
patent: 4318203 (1982-03-01), Satoh
patent: 4601396 (1986-07-01), Rosenthal
patent: 4657477 (1987-04-01), Shinoda

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