US3333572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic printing
Assignee: RCA Corp
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Filing: 1965-04-27
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Granted: 1967-08-01
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Expires: 1985-04-27
Abstract
No abstract record available.
Inventors
- 👤 Roger G Olden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:25
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/09; G03G15/0921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
APPARATUS FOR DEVELOPING A LATENT IMAGE ON THE SURFACE OF THE RECORDING ELEMENT COMPRISING: RECORD-ELEMENT GUIDING MEANS FOR GUIDING SAID RECORDELEMENT ALONG A PREDETERMINED PATH, A ROTATABLE BRUSH DISPOSED TO BRUSH AGAINST SAID SURFACE OF SAID RECORDING ELEMENT DURING THE MOVEMENT OF SAID RECORDING ELEMENT ALONG SAID PATH, MEANS DISPOSED BENEATH SAID BRUSH FOR HOLDING A DEVELOPER MIXTURE OF TONER BRUSH FOR HOLDING A DEPARTICLES TO BE APPLIED TO SAID SURFACE BY SAID BRUSH TO DEVELOP SAID LATENT IMAGE, AN ENDLESS BELT DISPOSED ADJACENT SAID BRUSH, MEANS TO ROTATE SAID ENDLESS BELT AND SAID BRUSH, MEANS TO FEED REPLENISHER TONER PARTICLES TO SAID BELT, MAGNETIC MEANS DISPOSED TO CREATE TWO SPACED-APART MAGNETIC CIRCUITS ALONG PATH, EACH OF SAID CIRCUITS TRAVERSING SAID PATH, AND AT LEAST ONE ROLLER OF MAGNETIC MATERIAL DISPOSED ADJACENT TO SAID SURFACE AND FORMING A PART OF ONE OF SAID MAGNETIC CIRCUITS FOR ATTRACTING MAGNETIC PARTICLES THAT ARE ON SAID SURFACE AND FOR CAUSING THEM TO FALL ONTO SAID BELT.
Claim 2
Dependent Claim
163 words
APPARATUS FOR DEVELOPING A LATENT IMAGE ON THE SURFACE OF THE RECORDING ELEMENT COMPRISING: RECORD-ELEMENT GUIDING MEANS FOR GUIDING SAID RECORDELEMENT ALONG A PREDETERMINED PATH, A ROTATABLE BRUSH DISPOSED TO BRUSH AGAINST SAID SURFACE OF SAID RECORDING ELEMENT DURING THE MOVEMENT OF SAID RECORDING ELEMENT ALONG SAID PATH, MEANS DISPOSED BENEATH SAID BRUSH FOR HOLDING A DEVELOPER MIXTURE OF TONER BRUSH FOR HOLDING A DEPARTICLES TO BE APPLIED TO SAID SURFACE BY SAID BRUSH TO DEVELOP SAID LATENT IMAGE, AN ENDLESS BELT DISPOSED ADJACENT SAID BRUSH, MEANS TO ROTATE SAID ENDLESS BELT AND SAID BRUSH, MEANS TO FEED REPLENISHER TONER PARTICLES TO SAID BELT, MAGNETIC MEANS DISPOSED TO CREATE TWO SPACED-APART MAGNETIC CIRCUITS ALONG PATH, EACH OF SAID CIRCUITS TRAVERSING SAID PATH, AND AT LEAST ONE ROLLER OF MAGNETIC MATERIAL DISPOSED ADJACENT TO SAID SURFACE AND FORMING A PART OF ONE OF SAID MAGNETIC CIRCUITS FOR ATTRACTING MAGNETIC PARTICLES THAT ARE ON SAID SURFACE AND FOR CAUSING THEM TO FALL ONTO SAID BELT.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |