US3244833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure operated switch with liquid cooling
Assignee: Loewy Engineering Co Ltd
•
Filing: 1962-10-23
•
Granted: 1966-04-05
•
Expires: 1982-10-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Gillett
- 👤 Banyard Augustus William Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:22
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H1/00; H01H1/62; H01H33/002; H01H9/00; H01H9/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A HEAVY CURRENT ELECTRIC SWITCH MECHANISM COMPRISING AN INSULATING PANEL, A PAIR OF FIXED CONTACT PARTS SPACED FROM ONE ANOTHER AND MOUNTED ON SAID PANEL, A BAR, A FLUID OPERATED JACK HAVING A BODY AND AN EXTENSIBLE RAM, SAID BAR BEING CONNECTED TO SAID RAM, A CONTACT PART CARRIED BY EACH END OF SAID BAR, SAID BAR COMPRISING A CONDUIT CONNECTED TO PASSAGES EXTENDING THROUGH SAID CONTACT PARTS WHICH ARE CARRIED BY SAID BAR, A PAIR OF TUBES EXTENDING THROUGH SAID PANEL, EACH OF SAID TUBES BEING CONNECTED TO A CORRESPONDING ONE OF SAID PASSAGES EXTENDING THROUGH SAID CONTACT PARTS SO THAT THE BAR AND THE CONTACT PARTS CARRIED THEREBY MAY BE WATERCOOLED WHEN THE RAM CARRIES THE COMTACT PARTS ON THE BAR INTO ELECTRICAL CONTACT WITH THE FIXED CONTACT PARTS AND WHEN SAID CONTACT PARTS ARE SEPARATED BY SAID RAM.
Claim 2
Dependent Claim
141 words
A HEAVY CURRENT ELECTRIC SWITCH MECHANISM COMPRISING AN INSULATING PANEL, A PAIR OF FIXED CONTACT PARTS SPACED FROM ONE ANOTHER AND MOUNTED ON SAID PANEL, A BAR, A FLUID OPERATED JACK HAVING A BODY AND AN EXTENSIBLE RAM, SAID BAR BEING CONNECTED TO SAID RAM, A CONTACT PART CARRIED BY EACH END OF SAID BAR, SAID BAR COMPRISING A CONDUIT CONNECTED TO PASSAGES EXTENDING THROUGH SAID CONTACT PARTS WHICH ARE CARRIED BY SAID BAR, A PAIR OF TUBES EXTENDING THROUGH SAID PANEL, EACH OF SAID TUBES BEING CONNECTED TO A CORRESPONDING ONE OF SAID PASSAGES EXTENDING THROUGH SAID CONTACT PARTS SO THAT THE BAR AND THE CONTACT PARTS CARRIED THEREBY MAY BE WATERCOOLED WHEN THE RAM CARRIES THE COMTACT PARTS ON THE BAR INTO ELECTRICAL CONTACT WITH THE FIXED CONTACT PARTS AND WHEN SAID CONTACT PARTS ARE SEPARATED BY SAID RAM.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |