US3212624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory screw feeder
Assignee: Carrier Manufacturing Co
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Filing: 1963-11-26
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Granted: 1965-10-19
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Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Robert J Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:07
CPC Classifications
B; B65; B65G; B65G27/00; B65G2812/00; B65G2812/03; B65G2812/0304; B65G2812/032; Y; Y10; Y10S; Y10S198/00; Y10S198/952
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A FEEDER COMPRISING, IN COMBINATION, AN AUGER MOUNTED FOR ROTATION, A MOVABLY MOUNTED CONDUIT SURROUNDING AND CLOSELY SPACED FROM AT LEAST THE LOWER PORTION OF THE AUGER ALONG AT LEAST PART OF THE LENGTH OF THE AUGER, MEANS FOR VIBRATING THE CONDUIT TO CONVEY MATERIAL THEREALONG IN ONE DIRECTION, AND MEANS FOR ROTATING THE AUGER TO CONVEY THE MATERIAL ALONG THE CONDUIT IN THE OPPOSITE DIRECTION, RESULTING IN AN ACCURATE, UNIFORMDENSITY DISCHARGE-FLOW OF THE MATERIAL.
Claim 2
Dependent Claim
75 words
A FEEDER COMPRISING, IN COMBINATION, AN AUGER MOUNTED FOR ROTATION, A MOVABLY MOUNTED CONDUIT SURROUNDING AND CLOSELY SPACED FROM AT LEAST THE LOWER PORTION OF THE AUGER ALONG AT LEAST PART OF THE LENGTH OF THE AUGER, MEANS FOR VIBRATING THE CONDUIT TO CONVEY MATERIAL THEREALONG IN ONE DIRECTION, AND MEANS FOR ROTATING THE AUGER TO CONVEY THE MATERIAL ALONG THE CONDUIT IN THE OPPOSITE DIRECTION, RESULTING IN AN ACCURATE, UNIFORMDENSITY DISCHARGE-FLOW OF THE MATERIAL.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |