Thermally insulated electrically heated hose for transmitting ho

Details Thermally insulated electrically heated hose for transmitting ho Thermally insulated electrically heated hose for transmitting ho

1981-11-27

1984-06-19

Bartis, Anthony

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

137341, 138 33, 174 47, 219308, 219522, 222146HE, H05B 358, F16L 1112, F16L 5300, B67D 562

Patent

active

044554745

ABSTRACT:
A flexible electrically heated hose for transporting molten adhesive from a melter to a dispenser. The hose comprises a Teflon tube contained within stainless steel braided wire and fitted with conventional hydraulic fittings at each end. The braided tube is encased within a multiple ply covering which includes electrical resistance heating wires and a resistance temperature detector adhered between two plies of helically wound fiberglass tape. This tape is covered by multiple plies of helically wound, double thickness fiberglass paper between the plies of which there are embedded spiral wound electrical leads to the dispenser. The fiberglass paper layer is encased within two layers of helically wound polyester felt, a layer of helically wound vinyl tape, and a braided polyester cover. Hard molded plastic cuffs are attached to the ends of the hose. The electrical leads to the heating wires, temperature detector and dispenser extend radially from the hose through holes in the cuffs. Electrical plug-in adapters are attached to the ends of the electrical leads.

REFERENCES:
patent: 2243220 (1941-05-01), Pitman
patent: 2793280 (1957-05-01), Harvey
patent: 3019325 (1962-01-01), Clouse
patent: 3097288 (1963-07-01), Dunlap
patent: 3543803 (1970-12-01), Chrow
patent: 3585361 (1971-06-01), Rosen et al.
patent: 3603403 (1971-09-01), Horwinski
patent: 3727029 (1973-04-01), Chrow
patent: 4194536 (1980-03-01), Stine et al.
patent: 4229613 (1980-10-01), Braum
patent: 4308519 (1977-07-01), Foucras
patent: 4323174 (1982-04-01), Wood

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