Electric resistance heating devices – Heating devices – Continuous flow type fluid heater
Patent
1997-07-14
1999-02-16
Hoang, Tu B.
Electric resistance heating devices
Heating devices
Continuous flow type fluid heater
392488, 392492, 392503, F24H 110
Patent
active
058728902
ABSTRACT:
A linear cartridge heater has a cylindrical heater element and an integral, concentrically-mounted current collector element positioned within a fire retardant chlorinated PVC enclosure. The enclosure includes a unitarily-molded mounting flange for sealingly mounting the cartridge heater, a unitarily-molded special "tee" section interconnected with the mounting flange, and an alignment bushing. The alignment bushing is interconnected with the special "tee" section by a pipe section to form a fluid flow path between the alignment bushing and the special "tee" section. The special "tee" section provides an outlet for discharging heated water and a mounting place for a first thermistor temperature sensor. The alignment bushing mounts a second thermistor sensor and concentrically positions the heater element within the enclosure, such that the water flow rate past the heater element is substantially increased by the change from circular pipe flow into the alignment bushing to annular flow about the heater element.
REFERENCES:
patent: 1797712 (1931-10-01), Brodnax et al.
patent: 3934333 (1976-01-01), Churchill
patent: 4107514 (1978-08-01), Ellson
patent: 4185187 (1980-01-01), Rogers
patent: 4233694 (1980-11-01), Janosko et al.
patent: 4501952 (1985-02-01), Lehrke
patent: 4543469 (1985-09-01), Cunningham
patent: 4682010 (1987-07-01), Drapeau et al.
patent: 4855569 (1989-08-01), Wiedemann
patent: 4949627 (1990-08-01), Nordskog
Watlow Catalog entitled "Heaters, Sensors and Controls," Nov. 1993.
Drawing labeled "Heater Assembly Model Z".
Drawing labeled "Heating Element 1.5 KW".
Hoang Tu B.
Watkins Manufacturing Corporation
LandOfFree
Cartridge heater system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cartridge heater system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cartridge heater system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2069204