Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1979-11-13
1981-08-25
Goldberg, E. A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219345, 219386, 219544, 219548, 338254, H05B 368
Patent
active
042861438
ABSTRACT:
Laminated heater plate assembly is formed from a plurality of layers of glass cloth and/or glass mat and epoxy resin which are laminated together under heat and pressure. One or more thermally conductive heater members are mounted in a cut-out region(s) in a pre-cured or "C" stage laminate top portion of the assembly while a plurality of uncured or "B" stage glass mat and epoxy resin laminations are stacked, assembled under the "C" stage portion and heater portion(s), and bonded to each other into a rigid, warp-free heater plate assembly which can be repeatedly subjected to steam or hot water without damage. Preferably, the resin density after bonding in the region of the edges of the heater portion(s) and the adjacent surrounding edges of the cut-out region(s) is greater than in locations spaced further from the heater portion(s) in order to enhance the sealing of the assembly in the most critical areas thereof. In a preferred embodiment the weight of the assembly is reduced by the use of micro-balloons in some laminations, the absence of epoxy in others, and by the elimination of portions of the interior layers.
REFERENCES:
patent: 2152126 (1939-03-01), Young
patent: 2640906 (1953-06-01), Haynes
patent: 2643320 (1953-06-01), Pfenninger, Jr.
patent: 2843711 (1958-07-01), Crick
patent: 2952761 (1960-09-01), Smith-Johannsen
patent: 2961524 (1960-11-01), Newman
patent: 3218436 (1965-11-01), Edwards et al.
patent: 3436816 (1969-04-01), Lemelson
Clark Barry L.
Goldberg E. A.
Hoatson Jr. James R.
Page II William H.
Roskoski Bernard
LandOfFree
Heater assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heater assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heater assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1159899