US3133193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corona discharge apparatus for the surface treatment of plastic resins
Assignee: EIDP Inc
•
Filing: 1962-01-22
•
Granted: 1964-05-12
•
Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Guillotte John Edward
- 👤 Jr Thomas Francis Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:59
CPC Classifications
H; H01; H01T; H01T19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN APPARATUS FOR TREATMENT OF THE SURFACE OF PLASTIC ARTICLES WITH A CORONA DISCHARGE WHICH COMRPISES A FIRST ELECTRODE; A SECOND ELECTRODE SPACED FROM SAID FIRST ELECTRODE, THE DISCHARGING REGIONS OF SAID FIRST AND SAID SECOND ELECTRODES BEING SUBSTANTIALLY PARALLEL WITH EACH OTHER, MEANS, COMPRISING A DIELECTRIC MATERIAL PLACED OVER THE DISCHARGE REGIONOF AT LEAST ONE ELECTRODE TO PREVENT A DISCHARGE TRAVERSING THE ENTIRE DISTANCE BETWEEN THE SAID FIRST ELECTRODE AND THE SAID SECOND ELECTRODE, MEANS TO PRODUCE AN ALTERNATING HIGH VOLTAGE BETWEENSAID FIRST ELECTRODE AND SAID SECOND ELECTRODE WHEREBY A CORONA DISCHARGE IS PRODUCED, DEFLECTING MEANS BETWEEN SAID FIRST ELECTRODE AND SECOND ELECTRODE, WHEREBY SAID DISCHARGE IS DEFLECTED IN AN ARCUATE FORM, AND MEANS TO TRANSPORT A PLASTIC ARTICLE PAST SAIDAPPARATUS WITH A SURFACE OF THE ARTICLE TANGENTIALLY IN CONTAT WITH THE SAID CORONA DISCHARGE AT A REGION OF THE DISCHARGE OPPOSITE THE SAID DEFLECTING MEANS.
Claim 2
Independent Claim
147 words
AN APPARATUS FOR TREATMENT OF THE SURFACE OF PLASTIC ARTICLES WITH A CORONA DISCHARGE WHICH COMRPISES A FIRST ELECTRODE; A SECOND ELECTRODE SPACED FROM SAID FIRST ELECTRODE, THE DISCHARGING REGIONS OF SAID FIRST AND SAID SECOND ELECTRODES BEING SUBSTANTIALLY PARALLEL WITH EACH OTHER, MEANS, COMPRISING A DIELECTRIC MATERIAL PLACED OVER THE DISCHARGE REGIONOF AT LEAST ONE ELECTRODE TO PREVENT A DISCHARGE TRAVERSING THE ENTIRE DISTANCE BETWEEN THE SAID FIRST ELECTRODE AND THE SAID SECOND ELECTRODE, MEANS TO PRODUCE AN ALTERNATING HIGH VOLTAGE BETWEENSAID FIRST ELECTRODE AND SAID SECOND ELECTRODE WHEREBY A CORONA DISCHARGE IS PRODUCED, DEFLECTING MEANS BETWEEN SAID FIRST ELECTRODE AND SECOND ELECTRODE, WHEREBY SAID DISCHARGE IS DEFLECTED IN AN ARCUATE FORM, AND MEANS TO TRANSPORT A PLASTIC ARTICLE PAST SAIDAPPARATUS WITH A SURFACE OF THE ARTICLE TANGENTIALLY IN CONTAT WITH THE SAID CORONA DISCHARGE AT A REGION OF THE DISCHARGE OPPOSITE THE SAID DEFLECTING MEANS.
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |