Electric heating – Metal heating – Of cylinders
Patent
1984-03-08
1986-02-11
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055D, 34 1, 99451, H05B 678
Patent
active
045700451
ABSTRACT:
Apparatus (11, 11a, 11b, 11c) for heating substances (16, 16a, 16b, 16c) with microwave energy has a microwave containment housing (12, 12a) formed at least in part of thick microwave absorbent dielectric material (39, 39a, 39b) such as concrete or ceramic tile among other examples. Such materials are usually obtainable locally thereby avoiding the high costs of prefabricating all metal chamber components at a distant factory and shipping the bulky structure to the installation site. Unproductive absorption of microwave in the dielectric material is minimized, when necessary, by conductive elements (29, 29b, 42a, 42b, 64a, 64b, 67a, 67b) which reflect microwave energy. In the preferred form, such elements include a high strength metal conveyor (21, 21a, 21b, 21c, 21d, 29e, 21f) and means (68, 68a, 72, 73, 74) are provided, when necessary, to counteract underheating which may sometimes occur where substances contact a metal surface in a microwave field. The dielectric housing construction enables structural simplifications in conveyor entrance and exit tunnels (17, 18) and in access doors (53). The construction may include a series of separately energized, electrically isolated heating modules (13c, 13d, 13e, 13f) along the conveyor to increase processing capacity and to enable differing power levels at successive heating stages.
REFERENCES:
patent: 3242304 (1966-03-01), Hickman
patent: 3263052 (1966-07-01), Jeppson et al.
patent: 3365562 (1968-01-01), Jeppson
patent: 3409447 (1968-11-01), Jeppson
patent: 3422242 (1969-01-01), Miyata
patent: 3624335 (1971-11-01), Dench
patent: 3646878 (1972-03-01), Keller
patent: 3961568 (1976-06-01), Jeppson
patent: 4168418 (1979-09-01), Bird
patent: 4246462 (1981-01-01), Meisel
patent: 4319856 (1982-03-01), Jeppson
patent: 4405850 (1983-09-01), Edgar
patent: 4488027 (1984-12-01), Dudley et al.
LandOfFree
Conveyorized microwave heating chamber with dielectric wall stru does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Conveyorized microwave heating chamber with dielectric wall stru, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conveyorized microwave heating chamber with dielectric wall stru will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1206841