Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1985-02-11
1986-12-09
Albritton, C. L.
Electric heating
Heating devices
With heater-unit housing, casing, or support means
174138J, 174175, 219542, 219536, 338286, 338304, H05B 306
Patent
active
046281894
ABSTRACT:
An insulator for a coil-type electric resistance heater is disclosed in which the insulator has inclined side faces forming the outer end of the insulator angling inwardly toward one another with side notches in the insulator at the base of the inclined side faces and a central notch in the outer end of the insulator between the two inclined side faces. The distance between the center notch and the outer ends of the inclined side faces is less than the spacing of the adjacent convolutions of the heater element coils so that upon aligning one convolution with the central notch and upon moving the insulator inwardly toward the axis of the coil, the one convolution will be received in the center notch and the adjacent convolutions will be wedgingly engaged by the side faces of the insulator so as to resiliently spread the convolutions such that the adjacent convolutions will snap into the side notches.
A method of installing an electrical resistance heater on a plurality of insulators is disclosed.
REFERENCES:
patent: D248464 (1978-07-01), Moore
patent: D248641 (1978-07-01), Thweatt, Jr.
patent: D248642 (1978-07-01), Thweatt, Jr.
patent: D248643 (1978-07-01), Thweatt, Jr.
patent: D248943 (1978-08-01), King
patent: D250644 (1978-12-01), Thweatt, Jr.
patent: D253171 (1979-10-01), Harris et al.
patent: D262285 (1981-12-01), Janning
patent: 1844678 (1932-02-01), Pickup
patent: 2921172 (1960-01-01), Hackman
patent: 3016441 (1962-01-01), Hackman et al.
patent: 3358074 (1967-12-01), Himes
patent: 3641312 (1972-02-01), Ammerman et al.
patent: 3697727 (1972-10-01), Neuman et al.
patent: 3770939 (1973-11-01), Kokjohn
patent: 3846619 (1974-11-01), Wightman et al.
patent: 3883721 (1975-05-01), Paulson et al.
patent: 3890487 (1975-06-01), Wightman et al.
patent: 3943333 (1976-03-01), Kokjohn et al.
patent: 4144445 (1979-03-01), Thweatt, Jr.
patent: 4250399 (1981-02-01), King
patent: 4268742 (1981-05-01), Cottrell et al.
patent: 4363959 (1982-12-01), Cottrell et al.
patent: 4458141 (1984-07-01), Howard et al.
patent: 4472624 (1984-09-01), Janning
patent: 4481411 (1984-11-01), Roth
patent: 4531017 (1985-07-01), Sherrill
Albritton C. L.
Emerson Electric Co.
LandOfFree
Electric resistance heater does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric resistance heater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric resistance heater will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1386517