Metal working – Method of mechanical manufacture – Electrical device making
Patent
1975-12-15
1977-07-26
DiPalma, Victor A.
Metal working
Method of mechanical manufacture
Electrical device making
156294, 156305, H05B 304
Patent
active
040373142
ABSTRACT:
A heating element includes an elongated tubular sheath which confines a resistance wire supported by a thermally conductive electrical insulation material which extends to a position flush with the end surface of the sheath. Each end portion of the heating element is supported by a bulkhead fitting which is formed of a sheet metal and includes a tubular wall portion having helical convolutions defining external threads. A radial flange portion projects outwardly from the tubular wall portion and forms an annular tapered hub portion firmly engaging the outer surface of the sheath. The flush end surfaces of the insulation material and the sheath are spaced inwardly from the end surface of the fitting to define a cavity, and a thermosetting sealant material is disposed within this cavity and the space defined between the outer surface of the sheath and the helical convolutions.
REFERENCES:
patent: R13095 (1910-03-01), Ruby
patent: 2245602 (1941-06-01), Morris
patent: 2630469 (1953-03-01), Miller
patent: 3118124 (1964-01-01), Bleckmann
patent: 3354294 (1967-11-01), Kollar et al.
patent: 3676254 (1972-07-01), Hight et al.
LandOfFree
Method of producing an electrical heating element and fitting as does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of producing an electrical heating element and fitting as, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing an electrical heating element and fitting as will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-717628