Claims
- 1. An electrical resistor comprised of:
- a. an elongated resistance core member having ends and periphery side portions, an impervious, electrically insulating, sealing coating on said side portions,
- b. at least one electrically conductive end cap member mounted on said core,
- c. said end cap member being positioned in electrical contact with the end portion only of said core member, and electrically insulated from the periphery portion of said core member by an electrically insulating packing positioned between and in contact with said end cap member and said sealing coating, and
- d. said end cap member having an outward-extending radial portion thereon which is arcuate in cross-section and is positioned contiguous to the junction with said core member.
- 2. The resistor of claim 1 wherein the core member has two ends and a cap member mounted on each end.
- 3. The resistor of claim 1 wherein the outward extending radial portion extends from about 0.16 to about 1.27 cm. from the body of the core member.
- 4. The resistor of claim 1 wherein the cap member has a receiving end adapted to spacedly receive the core member and the side portion of the core member within the receiving end is spaced from about 0.08 to about 0.64 cm. from said cap member.
- 5. The resistor of claim 4 wherein said electrically insulating packing is a layer of thermosetting resin.
- 6. An electrical resistor comprising an elongated resistance core having two ends and periphery side portions, an impervious, electrically insulating, sealing coating on said periphery side portions, an electrically conductive cap member mounted on each of said ends, said cap members being fabricated of a metal selected from aluminum, copper, brass, nickel and steel, each of said cap members being in abutting electrical contact with said core ends, a radial portion of said cap members being spaced outwardly of said side portions, said radial portion being arcuate in cross-section to reduce arcing between said core and said cap members and a layer of epoxy resin between said radial portion of said cap members and said sealing coating to electrically insulate said cap members from said periphery side portions.
Parent Case Info
This is a division of application Ser. No. 352,962, filed Feb. 26, 1982, which matured to U.S. Pat. No. 4,417,389 on Nov. 29, 1983.
US Referenced Citations (10)
Divisions (1)
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Number |
Date |
Country |
Parent |
352962 |
Feb 1982 |
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