Devices comprising conductive polymer compositions

Electric heating – Heating devices – With heater-unit housing – casing – or support means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

219549, H05B 302, H05B 336

Patent

active

047615419

ABSTRACT:
A number of improvements to electrical devices, particularly sheet heaters, comprising conductive polymer compositions, are provided. The preferred heater has the following features (a) it comprises a laminar resistive element and a plurality of electrodes which are so positioned that the predominant direction of current flow is parallel to the faces of the laminar element, (b) it comprises a laminar insulating element adjacent to but not secured to the electrodes and the resistive element; (c) it comprises a metallic foil, which acts as a ground plane and is positioned adjacent the insulating element but is not secured thereto; (d) it comprises a dielectric layer intimately bonded to the resistive element and to the electrodes.
The invention also provides an electrical device comprising first and second members having different resistivities, and a thin contact layer of intermediate resistivity positioned between the first and second members.

REFERENCES:
patent: 2529914 (1950-06-01), Challenner
patent: 2745942 (1956-05-01), Cohen
patent: 3022412 (1958-09-01), Waters
patent: 3057952 (1962-10-01), Gordon et al.
patent: 3257498 (1966-06-01), Kahn
patent: 3287684 (1966-11-01), Armbruster, Jr.
patent: 3299253 (1967-01-01), Lawson, Jr.
patent: 3387248 (1968-06-01), Rees
patent: 3522415 (1970-08-01), Eisler
patent: 3535494 (1970-10-01), Ambruster
patent: 3582968 (1971-06-01), Buiting et al.
patent: 3584198 (1971-06-01), Doi et al.
patent: 3657516 (1972-04-01), Fujihara
patent: 3781526 (1973-12-01), Damron
patent: 3793716 (1974-02-01), Smith-Johannsen
patent: 3808403 (1974-04-01), Kanaya et al.
patent: 3858144 (1974-12-01), Bedard et al.
patent: 3859504 (1975-01-01), Motokawa et al.
patent: 3861029 (1975-01-01), Smith-Johannsen et al.
patent: 3878362 (1975-04-01), Stinger
patent: 3900654 (1975-08-01), Stinger
patent: 4034207 (1977-07-01), Tamada et al.
patent: 4037082 (1977-07-01), Tamada et al.
patent: 4055526 (1977-10-01), Kiyokawa et al.
patent: 4149066 (1975-04-01), Niibe
patent: 4162395 (1979-07-01), Kobayashi
patent: 4177446 (1979-12-01), Diaz
patent: 4177785 (1979-12-01), Sundeen
patent: 4223209 (1980-09-01), Diaz
patent: 4237441 (1980-12-01), van Konynenburg et al.
patent: 4242573 (1980-12-01), Batliwalla
patent: 4245149 (1981-01-01), Fairlie
patent: 4250398 (1981-02-01), Ellis et al.
patent: 4307290 (1981-12-01), Bloore et al.
patent: 4323726 (1982-04-01), Criss et al.
patent: 4330703 (1982-05-01), Horsma et al.
patent: 4331860 (1982-05-01), Roller et al.
patent: 4341949 (1982-07-01), Steiner et al.
patent: 4348584 (1982-09-01), Gale et al.
patent: 4385226 (1983-05-01), Sauer
patent: 4388607 (1983-06-01), Toy et al.
patent: 4413174 (1983-11-01), Ting
patent: 4421582 (1983-12-01), Horsma et al.
patent: 4426339 (1984-01-01), Kamath et al.
patent: 4429216 (1984-01-01), Brigham
patent: 4481498 (1984-11-01), McTavish et al.
patent: 4485297 (1984-11-01), Grise et al.
patent: 4542365 (1985-09-01), McTavish et al.
patent: 4549161 (1985-10-01), McTavish et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Devices comprising conductive polymer compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Devices comprising conductive polymer compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Devices comprising conductive polymer compositions will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-712887

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.