Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1989-06-21
1990-11-20
Envall, Jr., Roy N.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
338238, H05B 100, H05B 300
Patent
active
049720678
ABSTRACT:
A self-regulating PTC heater assembly and a method of manufacturing the heater assembly is disclosed. PTC heater assembly includes a plurality of positive temperature coefficient devices, a plurality of spacers located between the positive temperature coefficient devices, a pair of metallic electrodes and a heat shrink tubing surrounding the pair of electrodes, PTC elements and spacers to hold the PTC elements and electrodes in place during assembly. A metallic sheath is compressed about the heat shrink tubing to establish uniform electrical contact between the PTC elements and the electrodes, to increase the thermal efficiency of the heater and to protect the heater assembly from physical damage.
REFERENCES:
patent: 2767288 (1956-10-01), Lennox
patent: 2803566 (1957-08-01), Smith-Johannsen
patent: 3397302 (1956-08-01), Hosford
patent: 3793716 (1974-02-01), Smith-Johannsen
patent: 3885129 (1975-05-01), Fabricuis
patent: 3996447 (1976-12-01), Boulfard
patent: 4072848 (1978-02-01), Johnson
patent: 4091267 (1978-05-01), Grant
patent: 4104509 (1978-08-01), Van Bokestal
patent: 4147927 (1979-04-01), Pirotte
patent: 4210800 (1980-07-01), Van Bokestal
patent: 4236065 (1980-11-01), Yashin
patent: 4242573 (1980-12-01), Batliwalia
patent: 4245146 (1981-01-01), Shioi
patent: 4246468 (1981-01-01), Horsma
patent: 4250400 (1981-02-01), Lee
patent: 4309596 (1982-01-01), Crowley
patent: 4315237 (1982-02-01), Middleman
patent: 4327282 (1982-04-01), Nauerth
patent: 4331860 (1982-05-01), Roller
patent: 4331861 (1982-05-01), Meixner
patent: 4334148 (1982-06-01), Kampo
patent: 4368380 (1983-01-01), Igashira
patent: 4371777 (1983-02-01), Roller
patent: 4395623 (1983-07-01), Shimada
patent: 4414052 (1983-11-01), Habata
patent: 4426573 (1984-01-01), Fudickar
patent: 4482801 (1984-11-01), Habata
patent: 4493972 (1985-01-01), Steinel
patent: 4540972 (1985-09-01), Davis
patent: 4541898 (1985-09-01), Unnamed
patent: 4544828 (1985-11-01), Shigenobu
patent: 4689878 (1987-09-01), Beauregard
patent: 4701597 (1987-11-01), Braun
patent: 4721848 (1988-01-01), Malone
patent: 4730103 (1988-03-01), Hawkins
patent: 4733057 (1988-03-01), Stanzel
patent: 4759189 (1988-08-01), Stropkay
patent: 4831241 (1989-05-01), Shikama et al.
Lokar Raymond S.
Lokar Richard A.
Envall Jr. Roy N.
Hoang Tu
Process Technology Inc.
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