Patent US3227441A successfully refreshed from Google Patents.
US3227441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document handling apparatus
Assignee: RCA Corp
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Filing: 1962-08-01
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Granted: 1966-01-04
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Expires: 1982-08-01
Abstract
No abstract record available.
Inventors
- 👤 Carl G Fraidenburgh
- 👤 Theodore J Misbin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:51
CPC Classifications
B; B07; B07C; B07C3/00; B07C3/02; B07C3/08; A; A41; A41C; A41C1/00; A41C1/06; B65; B65H; B65H1/00; B65H1/02; B65H3/00; B65H3/02; B65H3/06; B65H3/0653; B65H3/46; B65H3/48; G; G06; G06K; G06K13/00; G06K13/02; G06K13/07; G06K13/073; G06K13/08; G06K13/12; G06K13/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN COMBINATION A DOCUMENT TRANSPORT VACUUM DRUM, A PLURALITY OF APERTURES IN THE WALL OF SAID DRUM SPACED ALONG A CIRCUMFERENTIAL PATH; A NUMBER OF DRUM SHOES SLIDABLY MOUNTED ON SAID DRUM ALONG SAID PATH AND EACH SHOE HAVING APERTURES THEREIN WHICH ARE SPACED TO MATE WITH APERTURES IN SAID DRUM FOR ONE POSITION OF THAT SHOE; AND MEANS FOR INDIVIDUALLY CLAMPING EACH OF SAID SHOES TO SAID DRUM IN A DESIRED POSITION, WHEREBY EACH SHOE MAY BE POSITIONED WITH ITS APERTURES MATING WITH ONES OF THE DRUM APERTURES OR WITH THE SHOE BLOCKING THOSE DRUM APERTURES, AS DESIRED.
Claim 2
Dependent Claim
99 words
IN COMBINATION A DOCUMENT TRANSPORT VACUUM DRUM, A PLURALITY OF APERTURES IN THE WALL OF SAID DRUM SPACED ALONG A CIRCUMFERENTIAL PATH; A NUMBER OF DRUM SHOES SLIDABLY MOUNTED ON SAID DRUM ALONG SAID PATH AND EACH SHOE HAVING APERTURES THEREIN WHICH ARE SPACED TO MATE WITH APERTURES IN SAID DRUM FOR ONE POSITION OF THAT SHOE; AND MEANS FOR INDIVIDUALLY CLAMPING EACH OF SAID SHOES TO SAID DRUM IN A DESIRED POSITION, WHEREBY EACH SHOE MAY BE POSITIONED WITH ITS APERTURES MATING WITH ONES OF THE DRUM APERTURES OR WITH THE SHOE BLOCKING THOSE DRUM APERTURES, AS DESIRED.
References Cited (Backward Citations)
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |