US3358831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of sorting sheet material
Assignee: Individual
•
Filing: 1965-09-03
•
Granted: 1967-12-19
•
Expires: 1985-09-03
Abstract
No abstract record available.
Inventors
- 👤 Le Roy E Cothrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:16
CPC Classifications
B; B27; B27L; B27L5/00; B27L5/002; Y; Y10; Y10S; Y10S209/00; Y10S209/905; Y10S277/00; Y10S277/906; Y10S277/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
APPARATUS FOR CONVEYING AND SORTING SEMI-RIGID SHEET MATERIAL ALONG INCLINED PATHS EXTENDING IN A SINGLE LONGITUDINAL DIRECTION, SAID APPARATUS COMPRISING A STORAGE ZONE, A GRADING ZONE, A TRANSFER ZONE AND A RECEIVING ZONE ALL ARRANGED CONTIGUOUSLY AND SUCCESSIVELY CONVEYING THE SHEET MATERIAL IN SAID DIRECTION, CONVEYOR MEANS FOR SAID SHEET MATERIAL WITHIN EACH OF SAID ZONES WITH SAID CONVEYOR MEANS IN SAID STORAGE AND TRANSFER ZONES COMPRISING VERTICALLY SPACED APART TRAYS, SUCTION MEANS WITHIN SAID STORAGE AND GRADING ZONES SUBJACENT SAID CONVEYOR MEANS WHEREBY THE UNDERSIDE OF SHEET MATERIAL CONVEYED THEREIN WILL BE SUBJECTED TO A REDUCED ATMOSPHERIC PRESSURE RESULTING IN PRESSURED CONTACT WITH SAID CONVEYOR MEANS.
Claim 2
Dependent Claim
107 words
APPARATUS FOR CONVEYING AND SORTING SEMI-RIGID SHEET MATERIAL ALONG INCLINED PATHS EXTENDING IN A SINGLE LONGITUDINAL DIRECTION, SAID APPARATUS COMPRISING A STORAGE ZONE, A GRADING ZONE, A TRANSFER ZONE AND A RECEIVING ZONE ALL ARRANGED CONTIGUOUSLY AND SUCCESSIVELY CONVEYING THE SHEET MATERIAL IN SAID DIRECTION, CONVEYOR MEANS FOR SAID SHEET MATERIAL WITHIN EACH OF SAID ZONES WITH SAID CONVEYOR MEANS IN SAID STORAGE AND TRANSFER ZONES COMPRISING VERTICALLY SPACED APART TRAYS, SUCTION MEANS WITHIN SAID STORAGE AND GRADING ZONES SUBJACENT SAID CONVEYOR MEANS WHEREBY THE UNDERSIDE OF SHEET MATERIAL CONVEYED THEREIN WILL BE SUBJECTED TO A REDUCED ATMOSPHERIC PRESSURE RESULTING IN PRESSURED CONTACT WITH SAID CONVEYOR MEANS.
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |