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US3778742A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrical switch construction and end plug therefor or the like

Assignee: MICRO DEVICES CORP
•
Filing: 1971-07-16
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Granted: 1973-12-11
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Expires: 1991-07-16
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Abstract

Abstract An end plug for a switch construction, the plug having two identical inward and outward extensions extending from a large central portion so as to be usable in a like manner regardless of which extension is the inward or outward thereof in its assembled relation with the switch casing whereby the inward extension is adapted to provide a locating means for a spring inside the switch casing and the outward extension is adapted to provide means for spacing an exposed part of one of the switch conductors from the casing a predetermined distance. Each of the extensions of the plug has an axial length at least substantially the same as the axial length of the central portion thereof. Each of the extensions of the plug of one embodiment has a locating means intermediate its ends whereby the locating means on the inward extension is adapted to provide locating means for positioning one end of the internal spring in the switch casing and the locating means on the outward extension is adapted to provide means for mechanically locking an adhesive thereto that secures the casing to the exposed portion of the conductor whereas in another embodiment each of the extensions of the plug has a smooth frusto-conical configuration.

Inventors

  • 👤 P Merrill

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 15:04
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/74; H01H37/76; H01H37/764; H01H37/765; H01H33/00; H01H33/70; H01H33/76

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 285 words
In a switch construction having an open ended casing provided with two conductors and means for normally maintaining one electrical relationship between said conductors and for providing another electrical relationship between said conductors upon the occurrence of a certain event, the switch construction having a rigid insulating plug closing the open end of said casing and having a plug opening passing therethrough and through which one of said conductors is received so as to extend outwardly from said casing and inwardly into said casing, said plug having a large central portion secured to said casing, said plug having two identical inward and outward extensions extending from said central portion so as to be useable in a like manner regardless of which extension is the inward or outward one thereof in its assembled relation with said casing whereby the inward extension provides a locating means for a spring inside said casing and the outward extension provides means for spacing the exposed part of said one conductor from said casing a predetermined distance, the improvement wherein each of said extensions of said plug has an axial length at least substantially the same as the axial length of said central portion of said plug, each of said extensions of said plug having an outer peripheral surface and a locating means extending outwardly from and substantially transversely from said outer peripheral surface of its respective extension and intermediate its ends, the locating means on the inward extension providing locating means for positioning one end of said internal spring in said casing and the locating means on the outward extension providing means for mechanically locking an adhesive thereto that secures said casing to said exposed portion of said one conductor.
Claim 2
Dependent Claim 285 words
In a switch construction having an open ended casing provided with two conductors and means for normally maintaining one electrical relationship between said conductors and for providing another electrical relationship between said conductors upon the occurrence of a certain event, the switch construction having a rigid insulating plug closing the open end of said casing and having a plug opening passing therethrough and through which one of said conductors is received so as to extend outwardly from said casing and inwardly into said casing, said plug having a large central portion secured to said casing, said plug having two identical inward and outward extensions extending from said central portion so as to be useable in a like manner regardless of which extension is the inward or outward one thereof in its assembled relation with said casing whereby the inward extension provides a locating means for a spring inside said casing and the outward extension provides means for spacing the exposed part of said one conductor from said casing a predetermined distance, the improvement wherein each of said extensions of said plug has an axial length at least substantially the same as the axial length of said central portion of said plug, each of said extensions of said plug having an outer peripheral surface and a locating means extending outwardly from and substantially transversely from said outer peripheral surface of its respective extension and intermediate its ends, the locating means on the inward extension providing locating means for positioning one end of said internal spring in said casing and the locating means on the outward extension providing means for mechanically locking an adhesive thereto that secures said casing to said exposed portion of said one conductor.
Claim 3
Dependent Claim 302 words
A plug for a switch construction having an open ended casing provided with two conductors and means for normally maintaining one electrical relationship between said conductors and for providing another electrical relationship between said conductors upon the occurence of a certain event, said plug comprising a rigid insulating member for closing the open End of said casing and having a plug opening passing therethrough and through which one of said conductors is adapted to be received so as to extend outwardly from said casing and inwardly into said casing, said plug having a large central portion adapted to be secured to said casing, said plug having two identical inward and outward extensions extending from said central portion so as to be useable in a like manner regardless of which extension is the inward or outward one therof in its associated relation with said casing whereby the inward extension is adapted to provide a locating means for a spring inside said casing and the outward extension is adapted to provide means for spacing the exposed part of said one conductor from said casing a predetermined distance, each of said extensions of said plug having an axial length at least substantially the same as the length of said central portion of said plug, each of said extensions of said plug having an outer peripheral surface and a locating means extending outwardly from and substantially transversely from said outer peripheral surface of its respective extension and intermediate its ends, the locating means on the inward extension being adapted to provide locating means for positioning one end of said internal spring in said casing and the locating means on the outward extension being adapted to provide means for mechanically locking an adhesive thereto that would secure said casing to said exposed portion of said one conductor.
Claim 4
Dependent Claim 302 words
A plug for a switch construction having an open ended casing provided with two conductors and means for normally maintaining one electrical relationship between said conductors and for providing another electrical relationship between said conductors upon the occurence of a certain event, said plug comprising a rigid insulating member for closing the open End of said casing and having a plug opening passing therethrough and through which one of said conductors is adapted to be received so as to extend outwardly from said casing and inwardly into said casing, said plug having a large central portion adapted to be secured to said casing, said plug having two identical inward and outward extensions extending from said central portion so as to be useable in a like manner regardless of which extension is the inward or outward one therof in its associated relation with said casing whereby the inward extension is adapted to provide a locating means for a spring inside said casing and the outward extension is adapted to provide means for spacing the exposed part of said one conductor from said casing a predetermined distance, each of said extensions of said plug having an axial length at least substantially the same as the length of said central portion of said plug, each of said extensions of said plug having an outer peripheral surface and a locating means extending outwardly from and substantially transversely from said outer peripheral surface of its respective extension and intermediate its ends, the locating means on the inward extension being adapted to provide locating means for positioning one end of said internal spring in said casing and the locating means on the outward extension being adapted to provide means for mechanically locking an adhesive thereto that would secure said casing to said exposed portion of said one conductor.
Claim 5
Dependent Claim 242 words
In a switch construction having an open ended casing provided with two conductors and means for normally maintaining one electrical relationship between said conductors and for providing another electrical relationship between said conductors upon the occurrence of a certain event, the switch construction having a rigid insulating plug closing the open end of said casing and having a plug opening passing therethrough and through which one of said conductors is received so as to extend outwardly from said casing and inwardly into said casing, said plug having two identical inward and outward extensions so as to be useable in a like manner regardless of which extension is the inward or outward one thereof in its assembled relation with said casing whereby the inward extension provides a locating means for a spring inside said casing and the outward extension provides means for spacing the exposed part of said one conductor from said casing a predetermined distance, the improvement wherein each of said extensions of said plug has an outer peripheral surface and a locating means extending outwardly from and substantially transversely from said outer peripheral surface of its respective extension and intermediate its ends, the locating means on the inward extension providing locating means for positioning one end of said internal spring in said casing and the locating means on the outward extension providing means for mechanically locking an adhesive thereto that secures said casing to said exposed portion of said one conductor.
Claim 6
Dependent Claim 242 words
In a switch construction having an open ended casing provided with two conductors and means for normally maintaining one electrical relationship between said conductors and for providing another electrical relationship between said conductors upon the occurrence of a certain event, the switch construction having a rigid insulating plug closing the open end of said casing and having a plug opening passing therethrough and through which one of said conductors is received so as to extend outwardly from said casing and inwardly into said casing, said plug having two identical inward and outward extensions so as to be useable in a like manner regardless of which extension is the inward or outward one thereof in its assembled relation with said casing whereby the inward extension provides a locating means for a spring inside said casing and the outward extension provides means for spacing the exposed part of said one conductor from said casing a predetermined distance, the improvement wherein each of said extensions of said plug has an outer peripheral surface and a locating means extending outwardly from and substantially transversely from said outer peripheral surface of its respective extension and intermediate its ends, the locating means on the inward extension providing locating means for positioning one end of said internal spring in said casing and the locating means on the outward extension providing means for mechanically locking an adhesive thereto that secures said casing to said exposed portion of said one conductor.
Claim 7
Dependent Claim 22 words
In a switch construction as set forth in claim 3, the further improvement wherein said locating means on said plug are annular.
Claim 8
Dependent Claim 34 words
In a switch construction as set forth in claim 4, the further improvement wherein each extension of said plug is substantially frusto-conical with the smaller end thereof being the free end of said plug.
Claim 9
Dependent Claim 62 words
In a switch construction as set forth in claim 5, the further improvement wherein each extension of said plug has an inner part that is substantially frusto-conical and an outer part that is substantially frusto-conical in a downwardly stepped manner from the inner part thereof, said locating means of the respective extension comprising the juncture between said inner and outer parts thereof.
Claim 10
Dependent Claim 29 words
In a switch construction as set forth in claim 6, the further improvement wherein the juncture of each extension has an arcuate configuration in any axial cross section thereof.
Claim 11
Dependent Claim 257 words
A plug for a switch construction having an open ended casing prOvided with two conductors and means for normally maintaining one electrical relationship between said conductors and for providing another electrical relationship between said conductors upon the occurrence of a certain event, said plug comprising a rigid insulating member for closing the open end of said casing and having a plug opening passing therethrough and through which one of said conductors is adapted to be received so as to extend outwardly from said casing and inwardly into said casing, said plug having two identical inward and outward extensions so as to be useable in a like manner regardless of which extension is the inward or outward one thereof in its associated relation with said casing whereby the inward extension is adapted to provide a locating means for a spring inside said casing and the outward extension is adapted to provide means for spacing the exposed part of said one conductor from said casing a predetermined distance, each of said extensions of said plug having an outer peripheral surface and a locating means extending outwardly from and substantially transversely from said outer peripheral surface of its respective extension and intermediate its ends, the locating means on the inward extension being adapted to provide locating means for positioning one end of an internal spring in said casing and the locating means on the outward extension being adapted to provide means for mechanically locking an adhesive thereto that would secure said casing to said exposed portion of said one conductor.
Claim 12
Dependent Claim 257 words
A plug for a switch construction having an open ended casing prOvided with two conductors and means for normally maintaining one electrical relationship between said conductors and for providing another electrical relationship between said conductors upon the occurrence of a certain event, said plug comprising a rigid insulating member for closing the open end of said casing and having a plug opening passing therethrough and through which one of said conductors is adapted to be received so as to extend outwardly from said casing and inwardly into said casing, said plug having two identical inward and outward extensions so as to be useable in a like manner regardless of which extension is the inward or outward one thereof in its associated relation with said casing whereby the inward extension is adapted to provide a locating means for a spring inside said casing and the outward extension is adapted to provide means for spacing the exposed part of said one conductor from said casing a predetermined distance, each of said extensions of said plug having an outer peripheral surface and a locating means extending outwardly from and substantially transversely from said outer peripheral surface of its respective extension and intermediate its ends, the locating means on the inward extension being adapted to provide locating means for positioning one end of an internal spring in said casing and the locating means on the outward extension being adapted to provide means for mechanically locking an adhesive thereto that would secure said casing to said exposed portion of said one conductor.
Claim 13
Dependent Claim 17 words
A plug as set forth in claim 8 wherein said locating means on said plug are annular.
Claim 14
Dependent Claim 29 words
A plug as set forth in claim 9 wherein each extension of said plug is substantially frusto-conical with the smaller end thereof being the free end of said plug.
Claim 15
Dependent Claim 57 words
A plug as set forth in claim 10 wherein each extension of said plug has an inner part that is substantially frusto-conical and an outer part that is substantially frusto-conical in a downwardly stepped manner from the inner part thereof, said locating means of the respective extension comprising the juncture between said inner and outer parts thereof.
Claim 16
Dependent Claim 24 words
A plug as set forth in claim 11 wherein the juncture of each extension has an arcuate configuration in any axial cross section thereof.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-12-10 1977-06-11 1977-12-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-12-10 1981-06-11 1981-12-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-12-10 1985-06-11 1985-12-11 $7700.00 Window Closed / Lapsed

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