Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1982-06-10
1984-09-18
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
With heater-unit housing, casing, or support means
D13 18, 174138J, 219536, 219375, 219542, 338304, H05B 306
Patent
active
044726244
ABSTRACT:
A heater is disclosed having an elongate wire heating element with the heating element including at least two generally parallel runs supported on a frame by insulators with the portion of the heating element consituting the runs being formed generally in a helical coil and with the portion of the heating element between the runs being referred to as a turnaround. Specifically, the turnarounds are of non-helical coil construction and have at least one loop therein between the insulators supporting adjacent runs of the heating element thereby to permit limited movement between the adjacent runs and to permit thermal expansion and contraction of the turnarounds without applying a substantial force to the insulators. Further, the insulators are constructed so as to engage three convolutions of the coiled helical heating element runs with the intermediate engaged coil convolution being resiliently deflected inwardly toward the central longitudinal axis of the helical coil thereby to aid in resiliently retaining the run of the heating element on the insulator.
REFERENCES:
patent: D262285 (1981-12-01), Janning
patent: 1024234 (1912-04-01), Aller
patent: 1844678 (1942-02-01), Pickup
patent: 2921172 (1960-01-01), Hackman
patent: 3016441 (1962-01-01), Hackman et al.
patent: 3358074 (1967-12-01), Himes
patent: 3543002 (1970-11-01), Poole
patent: 3641312 (1972-02-01), Ammerman et al.
patent: 3691348 (1972-09-01), Kunz
patent: 3697727 (1972-10-01), Newman et al.
patent: 3770939 (1973-11-01), Kokjohn
patent: 3846619 (1974-11-01), Wightman et al.
patent: 3890487 (1975-06-01), Wightman et al.
patent: 4250399 (1981-02-01), King
patent: 4268742 (1981-05-01), Cottrell
patent: 4363959 (1982-12-01), Cottrell et al.
Emerson Electric Co.
Mayewsky Volodymyr Y.
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-795342