US2742018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating by electrostatic force
Assignee: Individual
•
Filing: 1952-01-02
•
Granted: 1956-04-17
•
Expires: 1972-01-02
Abstract
No abstract record available.
Inventors
- 👤 Lindquist Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:20
CPC Classifications
B; B05; B05C; B05C19/00; B05C19/001; B05C19/002; B05B; B05B5/00; B05B5/08; B05B5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A MACHINE OF THE CLASS DESCRIBED, COMPRISING A TRAVELING BELT FOR TRANSPORTING THROUGH AN ELECTROSTATIC FIELD SHEET MATERIAL PROVIDED WITH AN ADHESIVE COATED TOP SURFACE, AN ELECTRO-CONDUCTIVE TABLE SUPPORTING SAID BELT, A PAIR OF ELECTRODES ARRANGED ABOVE AND TRANSVERSE TO THE LINE OF TRAVEL OF SAID BELT, A PAIR OF DOWNWARDLY BOWED FORAMINOUS BAFFLES EACH HAVING OPENINGS LARGER THAN THE PARTICLES TO BE HANDLED, AND ARRANGED ONE ABOVE THE OTHER IN THE SPACE BETWEEN SAID ELECTRODES, MEANS FOR ELECTROSTATICALLY CHARGING SAID TABLE AND THE LOWER OF SAID BAFFLES TO ONE POLARITY AND SID ELECTRODES AND THE UPPER OF SAID BAFFLES TO THE OPPOSITE POLARITY, THE UPPER OF SAID BAFFLES SERVING AS A LOAD RETAINER OF SUCH PARTICLES FED BY ELECTROSTATIC FORCE TO SAID COATED SURFACE.
Claim 2
Dependent Claim
125 words
A MACHINE OF THE CLASS DESCRIBED, COMPRISING A TRAVELING BELT FOR TRANSPORTING THROUGH AN ELECTROSTATIC FIELD SHEET MATERIAL PROVIDED WITH AN ADHESIVE COATED TOP SURFACE, AN ELECTRO-CONDUCTIVE TABLE SUPPORTING SAID BELT, A PAIR OF ELECTRODES ARRANGED ABOVE AND TRANSVERSE TO THE LINE OF TRAVEL OF SAID BELT, A PAIR OF DOWNWARDLY BOWED FORAMINOUS BAFFLES EACH HAVING OPENINGS LARGER THAN THE PARTICLES TO BE HANDLED, AND ARRANGED ONE ABOVE THE OTHER IN THE SPACE BETWEEN SAID ELECTRODES, MEANS FOR ELECTROSTATICALLY CHARGING SAID TABLE AND THE LOWER OF SAID BAFFLES TO ONE POLARITY AND SID ELECTRODES AND THE UPPER OF SAID BAFFLES TO THE OPPOSITE POLARITY, THE UPPER OF SAID BAFFLES SERVING AS A LOAD RETAINER OF SUCH PARTICLES FED BY ELECTROSTATIC FORCE TO SAID COATED SURFACE.
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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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |