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US3668779A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of manufacturing double insulated plugs

Assignee: General Electric Co
•
Filing: 1969-04-02
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Granted: 1972-06-13
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Expires: 1989-04-02
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Abstract

Abstract A method of manufacturing an electrical wiring device in which the electrical connections of the wiring device are positioned within double insulation. The contacts are electrically and mechanically connected to the conductors of a cord to form connections. A portion of each contact is inserted in a mating recess in a mold and a preformed insert of insulating material is positioned overlying the connections. The insert is held in its position overlying the connections and the contacts are maintained in the recesses while a body of insulating material is molded around the insert and connections.

Inventors

  • 👤 Prescott K Turner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 15:15
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/28; H01R2103/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174; Y10T29/49176; Y10T29/49204; Y10T29/49208; Y10T29/4922

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 102 words
A method of manufacturing an electrical plug, the method comprising the steps of: electrically and mechanically attaching a plurality of contacts to a corresponding plurality of conductors to form a plurality of connections; inserting a portion of each of said contacts into a predetermined position in a mating recess in a mold and then placing a preformed insert of insulating material in juxtaposition to and overlying said connections; restraining said insert in juxtaposition to said connections and maintaining said contacts in their predetermined positions in said mating recesses while molding a body of insulating material substantially enclosing said connections and said insert.
Claim 2
Independent Claim 102 words
A method of manufacturing an electrical plug, the method comprising the steps of: electrically and mechanically attaching a plurality of contacts to a corresponding plurality of conductors to form a plurality of connections; inserting a portion of each of said contacts into a predetermined position in a mating recess in a mold and then placing a preformed insert of insulating material in juxtaposition to and overlying said connections; restraining said insert in juxtaposition to said connections and maintaining said contacts in their predetermined positions in said mating recesses while molding a body of insulating material substantially enclosing said connections and said insert.
Claim 3
Independent Claim 144 words
A method of manufacturing an electrical plug, the method comprising the steps of: electrically and mechanically attaching a plurality of power contacts and a ground contact respectively to a corresponding plurality of power conductors and a ground conductors to form a plurality of power connections and a ground connection; inserting a portion of each of said contacts into a predetermined position in a mating one of a plurality of spaced apart recesses in a mold and placing a preformed insert of insulating material in juxtaposition to and overlying said connections; holding said insert in juxtaposition to said connections and maintaining saiD contacts in their predetermined positions in said mating recesses while molding a body of insulating material substantially around said connection and said insert, with said body having portions thereof surrounding each of said power connections and with a recess between said body portions.
Claim 4
Independent Claim 144 words
A method of manufacturing an electrical plug, the method comprising the steps of: electrically and mechanically attaching a plurality of power contacts and a ground contact respectively to a corresponding plurality of power conductors and a ground conductors to form a plurality of power connections and a ground connection; inserting a portion of each of said contacts into a predetermined position in a mating one of a plurality of spaced apart recesses in a mold and placing a preformed insert of insulating material in juxtaposition to and overlying said connections; holding said insert in juxtaposition to said connections and maintaining saiD contacts in their predetermined positions in said mating recesses while molding a body of insulating material substantially around said connection and said insert, with said body having portions thereof surrounding each of said power connections and with a recess between said body portions.
Claim 5
Independent Claim 155 words
A method of manufacturing an electrical plug, the method comprising the steps of: electrically and mechanically attaching a plurality of power contacts and a ground contact respectively to a corresponding plurality of power conductors and a ground conductor to form a plurality of power connections and a ground connection; inserting a portion of each of said contacts into a predetermined position in a mating one of a plurality of spaced apart recesses in a mold and placing a preformed insert of insulating material in juxtaposition to and overlying said connections, with at least said power connections being received in mating, spaced apart chambers in said insert; restraining said insert in juxtaposition to said connections and restraining said contacts in their predetermined positions in said mating recesses while injection molding a body of insulating material substantially around said connections and said insert, with said body of insulating material substantially filling said chambers about said power connections.
Claim 6
Independent Claim 155 words
A method of manufacturing an electrical plug, the method comprising the steps of: electrically and mechanically attaching a plurality of power contacts and a ground contact respectively to a corresponding plurality of power conductors and a ground conductor to form a plurality of power connections and a ground connection; inserting a portion of each of said contacts into a predetermined position in a mating one of a plurality of spaced apart recesses in a mold and placing a preformed insert of insulating material in juxtaposition to and overlying said connections, with at least said power connections being received in mating, spaced apart chambers in said insert; restraining said insert in juxtaposition to said connections and restraining said contacts in their predetermined positions in said mating recesses while injection molding a body of insulating material substantially around said connections and said insert, with said body of insulating material substantially filling said chambers about said power connections.

References Cited (Backward Citations)

US2700206A Cited
US2743507A Cited
US2949642A Cited
US3093434A Cited
US3093432A Cited
US3243866A Cited
US3191100A Cited
US3277426A Cited
US3251015A Cited
US3406374A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-06-13 1975-12-13 1976-06-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-13 1979-12-13 1980-06-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-13 1983-12-13 1984-06-13 $7700.00 Window Closed / Lapsed

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