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US3983428A Expired / Lapsed US ⏱️ 0.0 years remaining

Interchangeable connector means for electric motor operation on either of two supply voltages

Assignee: Emerson Electric Co
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Filing: 1974-06-10
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Granted: 1976-09-28
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Expires: 1994-06-10
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Abstract

Abstract One half of a main motor winding and a shunting lead are connected between one side of a power source and two of the terminals of a three terminal plug-in receptacle; the other half of the main winding and a second shunting lead are connected at one end to the other side of the power source and each has a plug-in terminal connected to its other end for selectively connecting the two winding halves in parallel or in series across the power source.

Inventors

  • 👤 Richard C. Bitsch
  • 👤 Lawrence E. McCrary

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 09:15
CPC Classifications
H; H01; H01R; H01R29/00; H02; H02K; H02K5/00; H02K5/04; H02K5/22; H02K5/225

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 290 words
In an electric motor having a casing and a stator winding therein, means for interchangeably connecting two portions of said winding in parallel or in series across a power source comprising; a first main lead for connecting one end of a first winding portion to one side of a power source, and a second main lead for connecting one end of a second winding portion to the other side of the power source, a receptacle mounted in an aperture in a wall of said casing comprising; a floor substantially closing said aperture, four outwardly extending side walls forming a rectangle, and two partitioning walls forming a series of three open end compartments, three terminals fixed in said receptacle floor each having a portion extending interiorly and a portion extending exteriorly in one of said compartments and arranged for cooperation with a push-fit lead connector, a first internal lead connecting said one end of said first winding portion to said interiorly extending portion of a first terminal, and a second internal lead connecting the other end of said first winding portion to said interiorly extending portion of a second terminal, first and second internally and externally extending leads connected at their internal ends to the opposite ends of said second winding portion and each having a push-fit connector at their exterior end for engagement with said exterior extending portion of said terminals, a cover member comprising four side walls forming a rectangle arranged for push-fit assembly over said receptacle side walls in either of two end-for-end positions, and said cover member having a bottom wall portion enclosing one end compartment of the series when assembled in said one position and enclosing the other end compartment when assembled in said other position.
Claim 2
Dependent Claim 290 words
In an electric motor having a casing and a stator winding therein, means for interchangeably connecting two portions of said winding in parallel or in series across a power source comprising; a first main lead for connecting one end of a first winding portion to one side of a power source, and a second main lead for connecting one end of a second winding portion to the other side of the power source, a receptacle mounted in an aperture in a wall of said casing comprising; a floor substantially closing said aperture, four outwardly extending side walls forming a rectangle, and two partitioning walls forming a series of three open end compartments, three terminals fixed in said receptacle floor each having a portion extending interiorly and a portion extending exteriorly in one of said compartments and arranged for cooperation with a push-fit lead connector, a first internal lead connecting said one end of said first winding portion to said interiorly extending portion of a first terminal, and a second internal lead connecting the other end of said first winding portion to said interiorly extending portion of a second terminal, first and second internally and externally extending leads connected at their internal ends to the opposite ends of said second winding portion and each having a push-fit connector at their exterior end for engagement with said exterior extending portion of said terminals, a cover member comprising four side walls forming a rectangle arranged for push-fit assembly over said receptacle side walls in either of two end-for-end positions, and said cover member having a bottom wall portion enclosing one end compartment of the series when assembled in said one position and enclosing the other end compartment when assembled in said other position.

References Cited (Backward Citations)

US3012159A Cited
US3231767A Cited
US3350587A Cited
US3602748A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-09-28 1980-03-29 1980-09-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-09-28 1984-03-29 1984-09-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-09-28 1988-03-29 1988-09-28 $7700.00 Window Closed / Lapsed

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