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US4418254A Expired / Lapsed US ⏱️ 0.0 years remaining

One piece operator for electric switch having pivoting and sliding contactor

Assignee: Eaton Corp
•
Filing: 1982-04-16
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Granted: 1983-11-29
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Expires: 2002-04-16
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Abstract

Abstract A pivoted operator d(4) for an electric switch has an inwardly extending actuating leg (4d) having direct connection with a contactor (12) to provide over-center pivoting and sliding motion for the contactor. The inner end of the actuating leg has a first slot (4f) wherein the actuator leg straddles the contactor and has grooved (4h) interior surfaces which receive outward lateral projections (12a) on the contactor for affecting a driving connection therebetween. The depending leg has a cylindrical recess (4e) which receives a helical compression spring (14) to bear between the operator and the contactor. Transversely aligned connection points (12a, 4h) actuator and contactor and the edges of the slot (4f) in the actuator cooperating with the lateral edges of the contactor (12) guide the latter throughout its longitudinal movement to prevent angular displacement in a horizontal plane of the contactor within the switch.

Inventors

  • 👤 Robert A. Busby
  • 👤 Gursharan P. S. Nat
  • 👤 John W. Stearley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 21:32
CPC Classifications
H; H01; H01H; H01H23/00; H01H23/02; H01H23/12; H01H23/16; H01H23/164

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 250 words
An electric switch comprising in combination: a housing; a pair of contact terminals spaced apart in said housing; a third terminal mounted between said contact terminals in said housing, said third terminal having a contact portion centrally located and substantially narrower in width than the remainder of that terminal and extending above said contact terminals; a movable contactor of a width greater than said contact portion of said third terminal cooperating with said terminals to complete electrical circuits between said contact portion of said third terminal and either of said contact terminals, said contactor having lateral projections intermediate its ends; an operator pivotally mounted in said housing and having a portion exteriorly of said housing which is engageable to effect pivoting thereof, said operator having a contactor actuating leg extending interiorly of said housing and having a slot in an end thereof defining spaced end portions, said actuator leg straddling said contactor with said spaced end portions extending along lateral edges of said contactor, recesses in each said spaced end portion engaging said lateral projections to provide a driving connection for sliding movement of said contactor while affording free pivoting of the latter therein, said actuating leg being pivotally movable by said operator to pivot said contactor on the contact portion of said third terminal and to slide it thereon into engagement with either of said contact terminals; and spring means carried by said actuating leg for biasing said contactor into engagement with the contact portion of said third terminal.
Claim 2
Dependent Claim 250 words
An electric switch comprising in combination: a housing; a pair of contact terminals spaced apart in said housing; a third terminal mounted between said contact terminals in said housing, said third terminal having a contact portion centrally located and substantially narrower in width than the remainder of that terminal and extending above said contact terminals; a movable contactor of a width greater than said contact portion of said third terminal cooperating with said terminals to complete electrical circuits between said contact portion of said third terminal and either of said contact terminals, said contactor having lateral projections intermediate its ends; an operator pivotally mounted in said housing and having a portion exteriorly of said housing which is engageable to effect pivoting thereof, said operator having a contactor actuating leg extending interiorly of said housing and having a slot in an end thereof defining spaced end portions, said actuator leg straddling said contactor with said spaced end portions extending along lateral edges of said contactor, recesses in each said spaced end portion engaging said lateral projections to provide a driving connection for sliding movement of said contactor while affording free pivoting of the latter therein, said actuating leg being pivotally movable by said operator to pivot said contactor on the contact portion of said third terminal and to slide it thereon into engagement with either of said contact terminals; and spring means carried by said actuating leg for biasing said contactor into engagement with the contact portion of said third terminal.
Claim 3
Dependent Claim 20 words
The invention defined in claim 1 wherein said recesses are upwardly extending grooves having their open sides facing each other.
Claim 4
Dependent Claim 31 words
The invention defined in claim 2 wherein said spaced end portions are closely adjacent said lateral edges of said contactor to restrict pivotal movement of said contactor in a horizontal plane.
Claim 5
Dependent Claim 29 words
The invention defined in claim 3 wherein said actuating leg has a recess extending upwardly from said slot and said spring means is disposed within said last mentioned recess.
Claim 6
Dependent Claim 59 words
The invention defined in claim 4 wherein said recess is a cylindrical bore closed at an upper end thereof and said spring means is a helically wound compression spring, one end of which rests on a top surface of said contactor and is restrained against lateral displacement on that surface by said spaced end portions of said actuating leg.

References Cited (Backward Citations)

US1777330A Cited
US2399462A Cited
US3158704A Cited
US3330930A Cited
US3403236A Cited
US3711663A Cited
US4127754A Cited
US4170725A Cited
US4314121A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-11-28 1987-05-30 1987-11-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-11-28 1991-05-30 1991-11-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-11-28 1995-05-30 1995-11-29 $7700.00 Window Closed / Lapsed

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