Abstract A composite radiating plate and rod heating unit for an electric-heated broiler compartment has a generally flat but arcuate-sided ceiling panel in the form of a rectangular metal sheet whose bottom bears a series of parallel passes of ''''Calrod'''' electric heating rod components. These, whether represented by individual lengths electrically jumper-connected at their opposite ends, or as arranged in sets of two or more in a serpentine outline, are non-uniformly spaced from one another in at least some of the successive components of the units, generally increasing in spacing starting at a front or rear pass. They and the thermally conductive sheet panels to which they are fixedly secured are curved downwardly adjacent opposite side margins of the latter to afford a warm dead air ceiling or dome space as installed at the top of a broiler chamber.
Inventors
👤 Mitchell D Charneski
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-30 13:39
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
150 words
An electrical heating unit comprising the combination, in relatively fixed relation to one another, of a thermally conductive sheet which is electrically non-conducting in the operation of the unit, and sets of elongated, relatively localized, but non-uniformly distributed, electrically and thermally energized heating elements arranged in a generally parallel relation to one another and disposed in direct and thermally conductive contact with said sheet, said sheet having angularly offset and downwardly angled side margins, said heating elements being conformed to and fixedly secured in nesting contact with said offset sheet side margins, the transverse spacing of certain of the respective heating elements differing in a generally progressive way from an element of one set to an element of another in a direction transverse of the length of said elements, elements of the respective sets being electrically connected in series with one another and the sets being electrically connected in parallel.
Claim 2
Dependent Claim
150 words
An electrical heating unit comprising the combination, in relatively fixed relation to one another, of a thermally conductive sheet which is electrically non-conducting in the operation of the unit, and sets of elongated, relatively localized, but non-uniformly distributed, electrically and thermally energized heating elements arranged in a generally parallel relation to one another and disposed in direct and thermally conductive contact with said sheet, said sheet having angularly offset and downwardly angled side margins, said heating elements being conformed to and fixedly secured in nesting contact with said offset sheet side margins, the transverse spacing of certain of the respective heating elements differing in a generally progressive way from an element of one set to an element of another in a direction transverse of the length of said elements, elements of the respective sets being electrically connected in series with one another and the sets being electrically connected in parallel.
Claim 3
Dependent Claim
46 words
The unit of claim 1, in which said sheet and heating elements are contoured in the direction of the length of the latter to provide a hot air trapping dome space directly beneath the unit which extends in a front-rear direction transversely of the element length.