Pipe joints or couplings – Vacuum cleaner type
Patent
1976-11-01
1978-03-21
Schroeder, Werner H.
Pipe joints or couplings
Vacuum cleaner type
174 47, 285119, 285319, 339 16R, 403108, 403109, A47L 924
Patent
active
040799654
ABSTRACT:
In accordance with the present invention, there is provided an improved wand for connecting a vacuum cleaner suction nozzle having an electric motor therein to a suction hose. A wand of this type normally serves as both a rigid handle for manipulating the nozzle and as a conduit for the passage of air from the nozzle to the hose. In addition, the present wand is provided with a sheath of preferably electrical insulating material for retaining an electric cord for supplying current to the motor in the nozzle from conductors carried by the suction hose.
REFERENCES:
patent: 2212679 (1940-08-01), White
patent: 2727762 (1955-12-01), Ziegler, Jr.
patent: 2793055 (1957-05-01), Meyerhoefer
patent: 2829190 (1958-04-01), Comlossy, Jr.
patent: 2885223 (1959-05-01), Duff
patent: 3553629 (1971-01-01), Brown et al.
patent: 3815170 (1974-06-01), Brooks et al.
patent: 3961647 (1976-06-01), Doubleday
patent: 4012091 (1977-03-01), Westergren
Collins J. Fred
Ferraris John T.
Moughty John J.
Ritzau William P.
Berman Conrad L.
Consolidated Foods Corporation
Henry William S.
Schroeder Werner H.
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