US3846576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partition with openings for plugging through voltage-carrying contacts
Assignee: Siemens AG
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Filing: 1973-04-11
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Granted: 1974-11-05
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Expires: 1993-04-11
Abstract
Abstract An improved shutter for closing off the holes in an insulated partition between a circuit breaker space and a bus bar space when the circuit breaker is removed in which spherical members, each attached to one end of a respective rope which has its other end let through a small hole above the hole to be covered and held in place by a knob on its other end, are suspended by the ropes to lie against and cover the holes.
Inventors
- 👤 E Silbermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:18
CPC Classifications
H; H02; H02B; H02B11/00; H02B11/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
In a switching installation wherein an insulating partition is placed between a bus bar space and a circuit breaker space, the partition having holes therein through which circuit breaker contacts may pass to plug into mating contacts in the bus bar space, apparatus to close off the holes when a circuit breaker is removed, Comprising, for at least one hole in the panel, a spherical member vertically suspended, by means attached above the hole, said means permitting movement of said spherical member in at least one direction, to lie opposite the hole on the bus side, whereby a circuit breaker contact being inserted through the hole will push said spherical member out of its way and retraction of the circuit breaker contact will allow said spherical member to rest against the hole closing it off.
Claim 2
Dependent Claim
135 words
In a switching installation wherein an insulating partition is placed between a bus bar space and a circuit breaker space, the partition having holes therein through which circuit breaker contacts may pass to plug into mating contacts in the bus bar space, apparatus to close off the holes when a circuit breaker is removed, Comprising, for at least one hole in the panel, a spherical member vertically suspended, by means attached above the hole, said means permitting movement of said spherical member in at least one direction, to lie opposite the hole on the bus side, whereby a circuit breaker contact being inserted through the hole will push said spherical member out of its way and retraction of the circuit breaker contact will allow said spherical member to rest against the hole closing it off.
Claim 3
Dependent Claim
15 words
The invention according to claim 1 wherein said suspending means comrpise means which are elastic.
Claim 4
Dependent Claim
136 words
In a switching installation wherein an insulating partition is placed between a bus bar space and a circuit breaker space, the partition having holes therein through which circuit breaker contacts may pass to plug into mating contacts in the bus bar space, apparatus to close off the holes when a circuit breaker is removed, comrpising, for at least one hole in the panel, a spherical member vertically suspended, by means led through a further hole said means permitting movement of said spherical member in at least one direction, to lie opposite the hole on the bus side, whereby a circuit breaker contact being inserted through the hole will push said spherical member out of its way and retraction of the circuit breaker contact will allow said spherical member to rest against the hole closing it off.
Claim 5
Dependent Claim
136 words
In a switching installation wherein an insulating partition is placed between a bus bar space and a circuit breaker space, the partition having holes therein through which circuit breaker contacts may pass to plug into mating contacts in the bus bar space, apparatus to close off the holes when a circuit breaker is removed, comrpising, for at least one hole in the panel, a spherical member vertically suspended, by means led through a further hole said means permitting movement of said spherical member in at least one direction, to lie opposite the hole on the bus side, whereby a circuit breaker contact being inserted through the hole will push said spherical member out of its way and retraction of the circuit breaker contact will allow said spherical member to rest against the hole closing it off.
Claim 6
Dependent Claim
24 words
The invention according to claim 3 wherein a knob is attached to the end of said suspending means which is led through the panel.
Claim 7
Dependent Claim
21 words
The invention according to claim 4 wherein said further hole comprises a smaller hole directly above the hole to be covered.
Claim 8
Dependent Claim
13 words
The invention according to claim 5 wherein said suspending means comprises a rope.
Claim 9
Dependent Claim
15 words
The invention according to claim 3 wherein said suspending means comprise means which are elastic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |