Patent US3633545A successfully refreshed from Google Patents.
US3633545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic printout equipment
Assignee: Bell and Howell Co
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Filing: 1969-11-03
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Granted: 1972-01-11
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Expires: 1989-11-03
Abstract
Abstract An apparatus for conveying magnetizable toner particles from a toner supply region to a toning region for toning magnetic images includes a plurality of detached magnetic members for advancing toner particles from the toner supply region to the toning region. These detached magnetic members are successively engaged, advanced and thereupon released by a screw structure, and are thereafter returned for reengagement by a tube. Toner guide means extend from the toner supply region to the toning region for shielding the magnetic members against contact by the toner particles and for guiding the advancing toner particles.
Inventors
- 👤 Felix Samaniego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:52
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/09
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
In apparatus for conveying magnetizable toner particles from a toner supply region toward a toning region for toning magnetic images, the improvement comprising in combination: a plurality of detached magnetic members for advancing toner particles from said toner supply region toward said toning region; means for advancing said magnetic members from said toner supply region toward said toning region, said advancing means including means for successively engaging said detached magnetic members at said toner supply region and for releasing said engaged magnetic members in the vicinity of said toning region; means for successively returning said released magnetic members to said toner supply region for reengagement by said engaging means; and toner guide means extending from said toner supply region to said toning region for shielding said magnetic members and said engaging and advancing means against contact by said toner particles and for guiding said advancing toner particles toward said toning region.
Claim 2
Dependent Claim
151 words
In apparatus for conveying magnetizable toner particles from a toner supply region toward a toning region for toning magnetic images, the improvement comprising in combination: a plurality of detached magnetic members for advancing toner particles from said toner supply region toward said toning region; means for advancing said magnetic members from said toner supply region toward said toning region, said advancing means including means for successively engaging said detached magnetic members at said toner supply region and for releasing said engaged magnetic members in the vicinity of said toning region; means for successively returning said released magnetic members to said toner supply region for reengagement by said engaging means; and toner guide means extending from said toner supply region to said toning region for shielding said magnetic members and said engaging and advancing means against contact by said toner particles and for guiding said advancing toner particles toward said toning region.
Claim 3
Dependent Claim
31 words
Apparatus as claimed in claim 1, wherein: said returning means include a tube structure for guiding said released magnetic members toward said toner supply region for reengagement by said engaging means.
Claim 4
Dependent Claim
29 words
Apparatus as claimed in claim 1, wherein: said engaging and advancing means include a rotatable member defining a thread for successively engaging, advancing and thereupon releasing said magnetic members.
Claim 5
Dependent Claim
37 words
Apparatus as claimed in claim 3, wherein: said returning means include a tube structure extending from one end to the other end of said rotatable member for guiding said released magnetic members into reengagement with said thread.
Claim 6
Dependent Claim
30 words
Apparatus as claimed in claim 1, wherein: said engaging and advancing means include an endless conveyor belt structure for engaging, advancing and thereupon releasing successive ones of said magnetic members.
Claim 7
Dependent Claim
20 words
Apparatus as claimed in claim 5, wherein: said conveyor belt structure includes members for engaging and carrying said magnetic members.
Claim 8
Dependent Claim
25 words
Apparatus as claimed in claim 5, including means defining a frictional surface near said conveyor belt structure for receiving said magnetic members in rolling engagement.
References Cited (Backward Citations)
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Cited
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |