Static molds – Container-type molding device – Plural article forming mold – or molds with community feature
Patent
1987-06-01
1989-10-17
Bartis, Anthony
Static molds
Container-type molding device
Plural article forming mold, or molds with community feature
137341, 138 33, 200 6105, 219291, 219308, 219509, H05B 102, H05B 358, F24H 112
Patent
active
048749257
ABSTRACT:
An electrically heated hose for providing heat only to the section of hose which contains an electrically conductive liquid therein includes a plurality of resistance heating elements positioned between inner and outer layers of electrically insulative material defining the hose wall and arranged to sectionalize the hose into individual independently heatable sections. Each heating element has a first terminal connected to a power source and a second terminal connected to at least one of a plurality of spaced electrically conductive members disposed on the inner layer and exposed to any electrically conductive liquid conveyed by the hose. A continuous electrical conductor exposed to any liquid in the hose extends along the entire length thereof in spaced relation to the plurality of conductive members and is connected the power source. The presence of electrically conductive liquid in a separate section of the hose provides electrical continuity between the continuous conductor and at least one of the conductive members in the section to energize at least one heating element associated with the section. The conductive members and conductor are arranged so that the deeper the conductive liquid in a hose section the greater the number of heating elements activated by the liquid.
REFERENCES:
patent: 2243220 (1941-05-01), Pitman
patent: 3233078 (1966-02-01), Siemianowski
patent: 3378673 (1968-04-01), Hopper
patent: 3543803 (1970-12-01), Chrow
patent: 3619560 (1971-11-01), Buiting et al.
patent: 4156127 (1979-05-01), Sako et al.
patent: 4455474 (1984-06-01), Jameson et al.
patent: 4553023 (1985-11-01), Jameson et al.
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