US3389791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flatware sorter
Assignee: FMC Corp
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Filing: 1966-07-14
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Granted: 1968-06-25
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Expires: 1986-07-14
Abstract
No abstract record available.
Inventors
- 👤 Naslund Erik
- 👤 Frank S Chytil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:35
CPC Classifications
A; A47; A47L; A47L21/00; A47L21/02; B; B07; B07C; B07C99/00; Y; Y10; Y10S; Y10S209/00; Y10S209/926; Y10S209/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A DEVICE FOR SORTING A RANDOM ASSORTMENT OF ARTICLES ACCORDING TO SIZE COMPRISING MEANS FOR SUPPLYING THE ARTICLES IN A SINGLE ROW, AN INCLINED ROTATABLE DRUM HAVING AT LEAST ONE LONGITUDINAL GROOVE POSITIONED FOR SLIDABLY RECEIVING THE ARTICLES FROM SAID SUPPLYING MEANS, SAID GROOVE BEING PROVIDED WITH A FIRST STEP FOR INTERCEPTING A PORTION OF THE ARTICLES OF A FIRST SIZE AND A SECOND STEP FOR INTERCEPTING THE ARTICLES OF A SIZE LESS THAN SAID FIRST PREDETERMINED SIZE, MEANS POSITIONED FOR RETAINING THE ARTICLES WITHIN SAID GROOVE DURING ROTATION OF SAID DRUM THROUGH A FIRST ZONE AND FOR DISCHARGING THE ARTICLES IN A SECOND ZONE, MEANS POSITIONED FOR COLLECTING THE ARTICLES DISCHARGED AT SAID SECOND ZONE, AND MEANS FOR ROTATING SAID DRUM WHEREBY THE ARTICLES SLIDING WITHIN SAID GROOVE ARE SEPARATED INTO AT LEAST TWO PORTIONS OF DIFFERENT PREDETERMINED SIZES.
Claim 2
Independent Claim
140 words
A DEVICE FOR SORTING A RANDOM ASSORTMENT OF ARTICLES ACCORDING TO SIZE COMPRISING MEANS FOR SUPPLYING THE ARTICLES IN A SINGLE ROW, AN INCLINED ROTATABLE DRUM HAVING AT LEAST ONE LONGITUDINAL GROOVE POSITIONED FOR SLIDABLY RECEIVING THE ARTICLES FROM SAID SUPPLYING MEANS, SAID GROOVE BEING PROVIDED WITH A FIRST STEP FOR INTERCEPTING A PORTION OF THE ARTICLES OF A FIRST SIZE AND A SECOND STEP FOR INTERCEPTING THE ARTICLES OF A SIZE LESS THAN SAID FIRST PREDETERMINED SIZE, MEANS POSITIONED FOR RETAINING THE ARTICLES WITHIN SAID GROOVE DURING ROTATION OF SAID DRUM THROUGH A FIRST ZONE AND FOR DISCHARGING THE ARTICLES IN A SECOND ZONE, MEANS POSITIONED FOR COLLECTING THE ARTICLES DISCHARGED AT SAID SECOND ZONE, AND MEANS FOR ROTATING SAID DRUM WHEREBY THE ARTICLES SLIDING WITHIN SAID GROOVE ARE SEPARATED INTO AT LEAST TWO PORTIONS OF DIFFERENT PREDETERMINED SIZES.
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |