US3178009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate structure
Assignee: WESTERN VELO AND CEMENT SPECIALTY CO
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Filing: 1963-02-13
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Granted: 1965-04-13
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Expires: 1983-02-13
Abstract
No abstract record available.
Inventors
- 👤 Willard H Gooding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:19
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/54; B65D90/58; B65D90/587
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN A SCREW CONVEYOR HAVING AN ELONGATED CYLINDRICAL BARREL, AN OPENING LEADING INTO AN END OF SAID BARREL, AN INLET CONDUIT LEADING INTO SAID OPENING, SAID SCREW FLIGHT FITTING CLOSELY WITHIN THE INTERIOR OF SAID BARREL, SAID SCREW FLIGHT EXTENDING PAST SAID OPENING, AN IMPROVEMENT WHICH COMPRISES: A HOUSING SECURED TO THE EXTERIOR OF SAID BARREL ADJACENT TO SAID OPENING AND SAID INLET CONDUIT, SAID HOUSING HAVING A SHAPE CORRESPONDING TO THE SHAPE OF SAID BARREL AND SPACED THEREFROM AND BEING OPEN TO THE INTERIOR OF SAID BARREL, SAID INLET CONDUIT BEING ATTACHED TO SAID HOUSING AN INLET GATE HAVING A CURVED SHAPE CORRESPONDING TO THE SHAPE OF SAID BARREL LOCATED WITHIN SAID SPACE BETWEEN SAID BARREL AND SAID HOUSING, SAID GATE BEING CAPABLE OF BEING LINEALLY MOVED SO AS TO CLOSE OFF SAID OPENING; AND MEANS FOR LINEALLY MOVING SAID INLET GATE FROM AN OPEN POSITION WITHIN SAID HOUSING TO A CLOSED POSITION IN WHICH SAID OPENING IS CLOSED.
Claim 2
Dependent Claim
160 words
IN A SCREW CONVEYOR HAVING AN ELONGATED CYLINDRICAL BARREL, AN OPENING LEADING INTO AN END OF SAID BARREL, AN INLET CONDUIT LEADING INTO SAID OPENING, SAID SCREW FLIGHT FITTING CLOSELY WITHIN THE INTERIOR OF SAID BARREL, SAID SCREW FLIGHT EXTENDING PAST SAID OPENING, AN IMPROVEMENT WHICH COMPRISES: A HOUSING SECURED TO THE EXTERIOR OF SAID BARREL ADJACENT TO SAID OPENING AND SAID INLET CONDUIT, SAID HOUSING HAVING A SHAPE CORRESPONDING TO THE SHAPE OF SAID BARREL AND SPACED THEREFROM AND BEING OPEN TO THE INTERIOR OF SAID BARREL, SAID INLET CONDUIT BEING ATTACHED TO SAID HOUSING AN INLET GATE HAVING A CURVED SHAPE CORRESPONDING TO THE SHAPE OF SAID BARREL LOCATED WITHIN SAID SPACE BETWEEN SAID BARREL AND SAID HOUSING, SAID GATE BEING CAPABLE OF BEING LINEALLY MOVED SO AS TO CLOSE OFF SAID OPENING; AND MEANS FOR LINEALLY MOVING SAID INLET GATE FROM AN OPEN POSITION WITHIN SAID HOUSING TO A CLOSED POSITION IN WHICH SAID OPENING IS CLOSED.
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |