Vacuum apparatus having protective device for operator and metho

Details Vacuum apparatus having protective device for operator and metho Vacuum apparatus having protective device for operator and metho

1979-12-17

1981-08-11

Askin, Laramie E.

Electricity: conductors and insulators

Combined fluid conduit and electrical conductor

15377, 29854, A47L 924, A47L 928

Patent

active

042835941

ABSTRACT:
A vacuum hose assembly, method of making same, and vacuum cleaner using same are provided wherein the hose assembly has a chamber in at least one of a pair of hose connectors thereof wherein such chamber is readily opened and closed and a protective device is disposed within the chamber and electrically connected to the electrical circuit of the vacuum hose assembly and the device is sensitive to practically every type of fault capable of causing injury to humans and operates to interrupt the electrical circuit therethrough upon detection of a fault.

REFERENCES:
patent: 3493815 (1970-02-01), Hurtle
patent: 3636285 (1972-01-01), Wickham et al.
patent: 4168564 (1979-09-01), Grabovez

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