Patent US3246113A successfully refreshed from Google Patents.
US3246113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical stock removal apparatus
Assignee: Motors Liquidation Co
•
Filing: 1962-09-18
•
Granted: 1966-04-12
•
Expires: 1982-09-18
Abstract
No abstract record available.
Inventors
- 👤 August F Scarpelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:30
CPC Classifications
B; B23; B23H; B23H1/00; B23H1/02; B23H1/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN ELECTRICAL STOCK REMOVAL APPARATUS, THE COMBINATION OF CONDUCTIVE CUTTING TOOL AND WORKPIECE ELECTRODES SPACED APART SO AS TO FORM A GAP THEREBETWEEN, AN ELECTRICAL ENERGY SOURCE, AND A CIRCUIT FOR CONNECTING THE SOURCE ACROSS THE GAP, THE CIRCUIT INCLUDING A CONTROLLED RECTIFIER FOR CONTROLLING THE CIRCUIT, THE CONTROLLED RECIFIER INCLUDING A GATE ELECTRODE, MEANS SUPPLYING A GATE PULSE TO THE GATE ELECTRODE SO AS TO RENDER THE CONTROLLED RECTIFIER CONDUCTIVE AND CAUSE A STOCK REMOVING DISCHARGE TO OCCUR ACROSS THE GAP, AND MEANS COMMUNICATING WITH THE GAP AND OPERATIVE IN RESPONSE TO A CERTAIN CONDITION THEREOF FOR IMPOSING A REVERSE BIAS ON THE CONTROLLED RECTIFIER SO AS TO RENDER THE CONTROLLED RECTIFIER NON-CONDUCTIVE.
Claim 2
Dependent Claim
114 words
IN ELECTRICAL STOCK REMOVAL APPARATUS, THE COMBINATION OF CONDUCTIVE CUTTING TOOL AND WORKPIECE ELECTRODES SPACED APART SO AS TO FORM A GAP THEREBETWEEN, AN ELECTRICAL ENERGY SOURCE, AND A CIRCUIT FOR CONNECTING THE SOURCE ACROSS THE GAP, THE CIRCUIT INCLUDING A CONTROLLED RECTIFIER FOR CONTROLLING THE CIRCUIT, THE CONTROLLED RECIFIER INCLUDING A GATE ELECTRODE, MEANS SUPPLYING A GATE PULSE TO THE GATE ELECTRODE SO AS TO RENDER THE CONTROLLED RECTIFIER CONDUCTIVE AND CAUSE A STOCK REMOVING DISCHARGE TO OCCUR ACROSS THE GAP, AND MEANS COMMUNICATING WITH THE GAP AND OPERATIVE IN RESPONSE TO A CERTAIN CONDITION THEREOF FOR IMPOSING A REVERSE BIAS ON THE CONTROLLED RECTIFIER SO AS TO RENDER THE CONTROLLED RECTIFIER NON-CONDUCTIVE.
References Cited (Backward Citations)
US2473915A
Cited
US2835784A
Cited
US2987609A
Cited
US2871410A
Cited
US2951930A
Cited
US2895080A
Cited
US3020448A
Cited
US3056065A
Cited
US3018411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |