Heater assembly for swaged cartridge heater and method of manufacture
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 23, 1996
Grant Date -
N/A
app pub date -
Oct 21, 1992
filing date -
Oct 21, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cartridge heater assembly to be swaged has a sheath with head and slug ends. A resistance heater unit in the sheath includes a flat rectangular core, a resistance wire winding on the core, and first and second core covers, one on each side. Each end of the resistance wire extends from the core through a hole in the adjacent core cover and to the head end of the sheath. Crushable heater unit centralizers at each end of the sheath hold the resistance heater unit. Leads are connected to the ends of the heater wire and the connections are enclosed in the centralizer. A plastic bushing closes the head end of the sheath and a slug closes the slug end of the sheath. The heater assembly is filled with an insulating material and swaged, crushing the centralizers.
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Family
International Classification(s)
Cited Art Landscape
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