US3577887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy storage control device, in particular for electric circuit breakers
Assignee: Merlin Gerin SA
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Filing: 1969-11-25
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Granted: 1971-05-11
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Expires: 1989-11-25
Abstract
Abstract A stored energy closing mechanism for a circuit interrupter comprising a toggle linkage cooperating with stationary guide means so as to allow the scheduling of the torque exerted by the closing spring on the charging device and on the driven parts of the circuit interrupter during the operation of the mechanism.
Inventors
- 👤 Guy Lambert
- 👤 Marcel Macaire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:07
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/16; F; F16; F16H; F16H33/00; F16H33/02; H01; H01H; H01H3/00; H01H3/22; H01H3/30; F16H2706/00; Y; Y10; Y10T; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
74 words
A stored energy control mechanism comprising a frame, an operating shaft rotatably mounted in said frame, closing spring means, crank means having crankpin means on said shaft, said spring means including toggle linkage means connected to said crankpin means to charge said spring means, and guide means acting on said toggle linkage means to cause it to control the folding and the unfolding of said toggle linkage means during the rotation of said shaft.
Claim 2
Dependent Claim
74 words
A stored energy control mechanism comprising a frame, an operating shaft rotatably mounted in said frame, closing spring means, crank means having crankpin means on said shaft, said spring means including toggle linkage means connected to said crankpin means to charge said spring means, and guide means acting on said toggle linkage means to cause it to control the folding and the unfolding of said toggle linkage means during the rotation of said shaft.
Claim 3
Dependent Claim
89 words
A stored energy control mechanism comprising a frame, an operating shaft rotatably mounted in said frame, closing spring means, crank means having crankpin means on said shaft, said spring means including a spring-operating rod, a lever pivotally connected intermediate its ends to said crankpin means, one of the end portions of said lever being pivotally connected to said operating rod, and cam means acting on the other end portion of said lever to control the pivoting of said lever about said crankpin means during the rotation of said shaft.
Claim 4
Dependent Claim
89 words
A stored energy control mechanism comprising a frame, an operating shaft rotatably mounted in said frame, closing spring means, crank means having crankpin means on said shaft, said spring means including a spring-operating rod, a lever pivotally connected intermediate its ends to said crankpin means, one of the end portions of said lever being pivotally connected to said operating rod, and cam means acting on the other end portion of said lever to control the pivoting of said lever about said crankpin means during the rotation of said shaft.
Claim 5
Dependent Claim
104 words
A stored energy control mechanism comprising a frame, an operating shaft rotatably mounted in said frame, closing spring means, crank means having crankpin means on said shaft, said spring means including a movable spring seat for said spring, a rod having an end portion, a lever pivotally connected intermediate its end portions to said crankpin means, a first end portion of said lever being pivotally connected to said end portion of said rod, relatively stationary guide means cooperating with the second end portIon of said lever to control the angular position of said lever as a function of the angular position of said shaft.
Claim 6
Dependent Claim
104 words
A stored energy control mechanism comprising a frame, an operating shaft rotatably mounted in said frame, closing spring means, crank means having crankpin means on said shaft, said spring means including a movable spring seat for said spring, a rod having an end portion, a lever pivotally connected intermediate its end portions to said crankpin means, a first end portion of said lever being pivotally connected to said end portion of said rod, relatively stationary guide means cooperating with the second end portIon of said lever to control the angular position of said lever as a function of the angular position of said shaft.
Claim 7
Dependent Claim
124 words
A stored energy control mechanism comprising a frame, an operating shaft rotatably mounted in said frame, closing spring means, crank means having crankpin means on said shaft, said spring means including a stationary pin, a toggle linkage pivotally connected to said crankpin means, said toggle linkage comprising a spring-operating rod and a control lever, an axis to pivotally connect said rod and said lever, a spring guiding member pivotally connected to said stationary pin, said rod and said member being arranged to slide one with respect to the other between said axis and said pin, and relatively stationary guide means cooperating with said control lever to control the angular position of said control lever as a function of the angular position of said shaft.
Claim 8
Dependent Claim
124 words
A stored energy control mechanism comprising a frame, an operating shaft rotatably mounted in said frame, closing spring means, crank means having crankpin means on said shaft, said spring means including a stationary pin, a toggle linkage pivotally connected to said crankpin means, said toggle linkage comprising a spring-operating rod and a control lever, an axis to pivotally connect said rod and said lever, a spring guiding member pivotally connected to said stationary pin, said rod and said member being arranged to slide one with respect to the other between said axis and said pin, and relatively stationary guide means cooperating with said control lever to control the angular position of said control lever as a function of the angular position of said shaft.
Claim 9
Dependent Claim
71 words
A stored energy, circuit interrupter closing mechanism comprising a frame, an operating shaft rotatably mounted in said frame, a crank mounted on said shaft, a crankpin on said crank, a closing spring means including a spring-operating rod to charge said spring, a lever pivotally mounted on said crankpin and connected to said operating rod, and guide means to schedule the angular position of said lever during the rotation of said shaft.
Claim 10
Dependent Claim
71 words
A stored energy, circuit interrupter closing mechanism comprising a frame, an operating shaft rotatably mounted in said frame, a crank mounted on said shaft, a crankpin on said crank, a closing spring means including a spring-operating rod to charge said spring, a lever pivotally mounted on said crankpin and connected to said operating rod, and guide means to schedule the angular position of said lever during the rotation of said shaft.
Claim 11
Dependent Claim
18 words
A mechanism according to claim 5, wherein said lever is pivotally mounted on an axis of said rod.
Claim 12
Dependent Claim
109 words
A mechanism according to claim 6, further comprising a relatively stationary axis on said frame, a spring supporting member pivotally connected to said relatively stationary axis, said spring supporting member being connected to a first spring seat and said spring-operating rod being connected to a second spring seat whereby the longitudinal sliding movement of said spring supporting member with respect to said rod changes the amount of stored energy of said spring, said guide means being relatively stationary mounted on said frame to bring said rod axis to an offcenter position between said crankpin and said relatively stationary axis during a substantial part of the rotation of said shaft.
Claim 13
Dependent Claim
22 words
A mechanism according to claim 5, wherein said guide means comprise a cam surface cooperating with a cam follower on said lever.
Claim 14
Dependent Claim
14 words
A mechanism according to claim 8, wherein said cam surface comprises a V-shaped portion.
References Cited (Backward Citations)
GB799665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |