Back to results
US 4,185,263 AGranted
Wire-wound resistor
AssigneeP. R. Mallory & Co. Inc.
InventorRobert L. Frey
Life of this patent
Estimating the term…
Abstract
A wire-wound resistor has an adhesive applied to the wire and the insulative substrate upon which the wire is wound at a predetermined location. The wire is then cut or otherwise broken at that location to open-circuit the resistor. The adhesive holds the cut end of the wires in place on the substrate.
Claims12
A method of open circuiting a wire wound resistance element comprising:
- (a) applying a wire in a number of turns to a length of electrically insulative strip to provide said wire wound resistance element,
- (b) applying an adhesive to a side of said resistance element not to be in contact with an electrical contact so as to bond said wire to said electrically insulative strip at a predetermined location, and
- (c) severing at least one turn of said turns of wire at said predetermined location to open circuit said resistance element.
A wire wound variable resistor comprising:
- (a) an electrically insulative strip,
- (b) a wire wound about said electrically insulative strip for a number of turns to provide a resistance element, and electrical terminals at opposed ends of said wire,
- (c) at least one turn of wire bonded to said electrically insulative strip at a predetermined location between said electrical terminals,
- (d) a break in said at least one turn of wire at said predetermined location to open circuit said wire wound resistor, and
- (e) an electrical contact engaging said wire between said break and one of said electrical terminals.
2 more elements
Dependencies are inferred from the claim text.