US3340429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus adapted to apply an electrostatic charge to moving fibrous elements
Assignee: EIDP Inc
•
Filing: 1966-04-04
•
Granted: 1967-09-05
•
Expires: 1986-04-04
Abstract
No abstract record available.
Inventors
- 👤 Owens John Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
H; H01; H01T; H01T19/00; H01T19/04; B; B29; B29D; B29D7/00; D; D01; D01D; D01D5/00; D01D5/0007; D01D5/0061; D01D5/0092; D01D5/04; D01D5/11; D01F; D01F13/00; D04; D04H; D04H3/00; D04H3/08; D04H3/16; Y; Y02; Y02P; Y02P70/00; Y02P70/50; Y02P70/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN APPARATUS ADAPTED TO APPLY AN ELECTROSTATIC CHARGE TO FIBROUS ELEMENTS, SAID APPARATUS COMPRISING, IN COMBINATION, MEANS FOR FORWARDING THE SAID FIBROUS ELEMENTS IN A LINEAR PATH, A CORONA DISCHARGE DEVICE CONSISTING OF AN ION GUN AND A GROUNDED TARGET ELECTRODE THEREFORE DISPOSED ON OPPOSITE SIDES OF THE SAID PATH, THE SAID ION GUN BEING COMPRISED OF A ROW OF PARALLEL CONDUCTING NEEDLES FIXED RIGIDLY IN A FIXED LATERAL SPACIAL RELATIONSHIP ARRANGED TRANSVERSE TO AND COMPLETELY ACROSS THE SAID PATH WITH THE POINTS OF THE SAID NEEDLES FACING THE SAID TARGET ELECTRODE, A DIRECT CURRENT SOURCE OF HIGH VOLT-
Claim 2
Independent Claim
99 words
AN APPARATUS ADAPTED TO APPLY AN ELECTROSTATIC CHARGE TO FIBROUS ELEMENTS, SAID APPARATUS COMPRISING, IN COMBINATION, MEANS FOR FORWARDING THE SAID FIBROUS ELEMENTS IN A LINEAR PATH, A CORONA DISCHARGE DEVICE CONSISTING OF AN ION GUN AND A GROUNDED TARGET ELECTRODE THEREFORE DISPOSED ON OPPOSITE SIDES OF THE SAID PATH, THE SAID ION GUN BEING COMPRISED OF A ROW OF PARALLEL CONDUCTING NEEDLES FIXED RIGIDLY IN A FIXED LATERAL SPACIAL RELATIONSHIP ARRANGED TRANSVERSE TO AND COMPLETELY ACROSS THE SAID PATH WITH THE POINTS OF THE SAID NEEDLES FACING THE SAID TARGET ELECTRODE, A DIRECT CURRENT SOURCE OF HIGH VOLT-
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |