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US 5,786,688 AGranted
Electrical ammeter including an induction coil
AssigneePrime Instruments, Inc.
InventorRobert L. Krupa, Jr.
Life of this patent
Estimating the term…
Abstract
An electrical meter, comprising a housing, a motor magnet mounted relative to a housing for pivotal movement, and an induction clip having an arcuate portion of more than 180 degrees, opposite ends of the arcuate being anchored to the housing to define an area within which a conductor is maintained within the radius of the arcuate portion.
Claims14
An electrical meter, comprising:
- a housing;
- a motor magnet mounted relative to said housing for pivotal movement;
- and
- an induction clip defining an area within which may be constrained a conductor through which current passes generating a magnetic field that reacts with the magnetic field of said motor magnet to influence pivotal movement of said motor magnet, said induction clip including an arcuate length of more than 180 degrees between opposite end portions anchored to said housing, and said arcuate portion defining an interior bight space open at one side to a surface of said wall of said housing.
1 more element
A meter, comprising:
- a housing;
- a motor magnet disposed on one side of a wall of said housing;
- and
- an induction clip having an arcuate portion disposed on an opposite side of said housing wall, the arcuate portion of the clip defining with a surface of the wall an area through which a conductor may pass for generating a magnetic field that reacts with the magnetic field of said motor magnet to influence pivotal movement of said motor magnet, said arcuate portion having an inner surface defining a circle that has a portion thereof extending at least halfway through the thickness of said wall of said housing, and said arcuate portion having opposite end portions located closer to said wall of said housing than an intermediate portion of said arcuate portion, thereby to enable retention of the conductor between said arcuate portion and said back wall of said housing.
1 more element
An electrical meter, comprising:
- a housing including a wall having a hole therein;
- a pivot pin having one end in pressed fit engagement with said hole, said pivot pin extending substantially normal from said wall;
- and
- a sleeve bearing rotatably engaged with said pivot pin and a motor magnet affixed to said sleeve bearing.
1 more element
Dependencies are inferred from the claim text.