US3842221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker with automatic ice removal means on contact bar
Assignee: Cegelec SA
•
Filing: 1973-10-23
•
Granted: 1974-10-15
•
Expires: 1993-10-23
Abstract
Abstract Ice-breaking device for electrical separation devices comprising a support for a mobile contact provided with contact fingers affecting a contact bar, characterised in that the bar comprises, at its periphery, studs provided with means for driving the said studs round the bar when manipulating the device.
Inventors
- 👤 J Dayet
- 👤 P Bastide
- 👤 M Besson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:00
CPC Classifications
H; H01; H01H; H01H31/00; Y; Y10; Y10S; Y10S241/00; Y10S241/17
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
58 words
In an ice-breaking device for an electrical equipment separation device including; a mobile contact supported for movement and provided with fingers engageable with a fixed contact bar, the improvement comprising studs provided on the periphery of the bar, and means for driving, said studs in rotation about the bar axis in response to movement of said mobile contact.
Claim 2
Dependent Claim
58 words
In an ice-breaking device for an electrical equipment separation device including; a mobile contact supported for movement and provided with fingers engageable with a fixed contact bar, the improvement comprising studs provided on the periphery of the bar, and means for driving, said studs in rotation about the bar axis in response to movement of said mobile contact.
Claim 3
Dependent Claim
33 words
The ice-breaking device according to claim 1, wherein: the studs are arranged on a lateral face, of a wheel rotatably carried by said bar which constitutes the axis of rotation of said wheel.
Claim 4
Dependent Claim
42 words
The ice-breaking device according to claim 1, wherein: the wheel is driven by a stop fixed to the mobile contact support, and at least one tooth is arranged on the periphery of the wheel in the path of movement of said stop.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |