US3222494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick-change electrodes system for spark-cutting apparatus
Assignee: Easco Products Inc
•
Filing: 1963-01-09
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Granted: 1965-12-07
•
Expires: 1983-01-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas J O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:35
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/306; B; B23; B23H; B23H1/00; B23H7/00; B23H7/02; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17213; Y10T279/17222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A TOOL FOR USE WITH APPARATUS FOR THE ELECTRO-EROSION OF METALS COMPRISING A BASE ADAPTED TO BE SECURED TO THE APPARATUS FOR THE ELECTRO-EROSION OF METALS, A REEL OF ELECTRODE WIRE, MEANS CARRIED BY SAID BASE FOR SUPPORTING THE REEL OF ELECTRODE WIRE ON SAID BASE, MEANS SECURED TO SAID BASE FOR SUPPORTING A MOVING WORKPIECE ENGAGING PORTION OF UNREELED ELECTRODE WIRE, A SECOND REEL SUPPORTED BY SAID BASE, AND A PAIR OF SYNCHROMIZED MOTORS SUPPORTED BY SAID BASE, ONE OF WHICH IS OPEABLE TO DRIVE THE SECOND REEL AND THE OTHER OF WHICH IS OPERABLE BETWEEN THE MEANS SUPPORTING THE WORKPIECE ENGAGING PORTION OF THE ELECTRODE WIRE AND THE SECOND REEL FOR UNREELING THE ELECTRODE WIRE AND DRAWING IT ACROSS THE SUPPORTING MEANS FOR SUBSEQUENT WINDING ON THE SECOND REEL.
Claim 2
Dependent Claim
131 words
A TOOL FOR USE WITH APPARATUS FOR THE ELECTRO-EROSION OF METALS COMPRISING A BASE ADAPTED TO BE SECURED TO THE APPARATUS FOR THE ELECTRO-EROSION OF METALS, A REEL OF ELECTRODE WIRE, MEANS CARRIED BY SAID BASE FOR SUPPORTING THE REEL OF ELECTRODE WIRE ON SAID BASE, MEANS SECURED TO SAID BASE FOR SUPPORTING A MOVING WORKPIECE ENGAGING PORTION OF UNREELED ELECTRODE WIRE, A SECOND REEL SUPPORTED BY SAID BASE, AND A PAIR OF SYNCHROMIZED MOTORS SUPPORTED BY SAID BASE, ONE OF WHICH IS OPEABLE TO DRIVE THE SECOND REEL AND THE OTHER OF WHICH IS OPERABLE BETWEEN THE MEANS SUPPORTING THE WORKPIECE ENGAGING PORTION OF THE ELECTRODE WIRE AND THE SECOND REEL FOR UNREELING THE ELECTRODE WIRE AND DRAWING IT ACROSS THE SUPPORTING MEANS FOR SUBSEQUENT WINDING ON THE SECOND REEL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |