US3573692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary terminal and shorting device
Assignee: General Electric Co
•
Filing: 1969-09-19
•
Granted: 1971-04-06
•
Expires: 1989-09-19
Abstract
Abstract The secondary terminals of a current transformer are provided with a cutout section which provides a flat contact surface on each terminal. A short circuit member has a pair of depending angular legs having faces which are parallel to the flat contact surfaces of the secondary terminals. This provides a large contact area with good electrical contact between the secondary terminals and the shorting device.
Inventors
- 👤 Ralph B Stetson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:14
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40; H01F38/00; H01F38/20; H01F38/22; H01F38/28; H01F38/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
A shorting means for the secondary of an instrument transformer comprising: a pair of secondary terminals spaced on the surface of an instrument transformer; a cutout in each of said pair of secondary terminals on the portion of said terminals facing each other providing a flat contact surface on each said terminal; a stud mounted on the transformer surface midway between said terminals; a shorting device rotatably mounted on said stud and provided with a pair of depending leg portions, each said leg portion having a face parallel to the flat contact surface of Said terminals.
Claim 2
Dependent Claim
96 words
A shorting means for the secondary of an instrument transformer comprising: a pair of secondary terminals spaced on the surface of an instrument transformer; a cutout in each of said pair of secondary terminals on the portion of said terminals facing each other providing a flat contact surface on each said terminal; a stud mounted on the transformer surface midway between said terminals; a shorting device rotatably mounted on said stud and provided with a pair of depending leg portions, each said leg portion having a face parallel to the flat contact surface of Said terminals.
Claim 3
Dependent Claim
30 words
A shorting means as claimed in claim 1 in which each said cutout provides an angular contact surface and said depending leg portions are bent downwardly at the same angle.
Claim 4
Dependent Claim
29 words
A shorting means as claimed in claim 1 in which said shorting device has an insulating spacer extending through a hole in said shorting device and surrounding said stud.
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |