US3156541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for stirring grain and similar particulate material
Assignee: Individual
•
Filing: 1961-07-24
•
Granted: 1964-11-10
•
Expires: 1981-07-24
Abstract
No abstract record available.
Inventors
- 👤 Henry A Kalke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:09
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/74; B65D88/742; F; F26; F26B; F26B9/00; F26B9/06; F26B9/08; F26B9/082; F26B9/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
GRAIN STORING AND DRYING APPARATUS COMPRISING A BIN HAVING A PERFORATED BOTTOM ON WHICH GRAIN MAY BE PILED; AIR DRYING MEANS; MEANS FOR FORCING DRIED AIR THROUGH SAID PERFORATED BOTTOM AND THROUGH THE PILE OF GRAIN; GRAIN STIRRING MEANS; MEANS MOUNTING SAID SURRING MEANS FOR SPIRALLING MOVEMENT THROUGH SAID GRAIN ABOUT A VERTICAL AXIS WITHIN SAID BIN; DRIVING MEANS FOR REVOLVING SAID STIRRING MEANS ABOUT SAID VERTICAL AXIS IN A SINGLE DIRECTION OF REVOLUTION; AND MEANS OPERABLE WHILE SAID STIRRING MEANS IS REVOLVEING ABOUT SAID AXIS FOR SERIALLY MOVING SAID STIRRING MEANS RADIALLY TOWARD AND RADIALLY AWAY FROM SAID AXIS WHEREBY SAID STIRRING MEANS WILL SERIALLY TRACE A SPIRAL PATH OF EVER DECREASING RADII FOLLOWED BY TRACING A SPIRAL PATH OF EVER INCREASING RADII, WILL THEN REPEAT TRACING A PATH OF EVER DECREASING RADII FOLLOWED BY TRACING A PATH OF EVER INCREASING RADII, AND SO ON.
Claim 2
Dependent Claim
146 words
GRAIN STORING AND DRYING APPARATUS COMPRISING A BIN HAVING A PERFORATED BOTTOM ON WHICH GRAIN MAY BE PILED; AIR DRYING MEANS; MEANS FOR FORCING DRIED AIR THROUGH SAID PERFORATED BOTTOM AND THROUGH THE PILE OF GRAIN; GRAIN STIRRING MEANS; MEANS MOUNTING SAID SURRING MEANS FOR SPIRALLING MOVEMENT THROUGH SAID GRAIN ABOUT A VERTICAL AXIS WITHIN SAID BIN; DRIVING MEANS FOR REVOLVING SAID STIRRING MEANS ABOUT SAID VERTICAL AXIS IN A SINGLE DIRECTION OF REVOLUTION; AND MEANS OPERABLE WHILE SAID STIRRING MEANS IS REVOLVEING ABOUT SAID AXIS FOR SERIALLY MOVING SAID STIRRING MEANS RADIALLY TOWARD AND RADIALLY AWAY FROM SAID AXIS WHEREBY SAID STIRRING MEANS WILL SERIALLY TRACE A SPIRAL PATH OF EVER DECREASING RADII FOLLOWED BY TRACING A SPIRAL PATH OF EVER INCREASING RADII, WILL THEN REPEAT TRACING A PATH OF EVER DECREASING RADII FOLLOWED BY TRACING A PATH OF EVER INCREASING RADII, AND SO ON.
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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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |