US3310155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic conveyor rollers
Assignee: Individual
•
Filing: 1964-10-02
•
Granted: 1967-03-21
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Expires: 1984-10-02
Abstract
No abstract record available.
Inventors
- 👤 Ungerer Irma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:54
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; B65G39/08; B65G57/00; B65G57/02; B65G57/03; B65G57/04; B65G2207/00; B65G2207/22; Y; Y10; Y10S; Y10S100/00; Y10S100/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A CONVEYOR ROLLER FOR MAGNETICALLY ATTRACTABLE ARTICLES COMPRISING, IN COMBINATION, A ROTATABLE ROLLER BARREL; CARRIER MEANS EXTENDING LONGITUDINALLY INTO THE INTERIOR OF SAID ROLLER BARREL AND FORMED THEREIN WITH A SUBSTANTIALLY RADIALLY EXTENDING CAVITY AND A PAIR OF LONGITUDINALLY EXTENDING COOLING DUCTS IN CLOSE PROXIMITY TO AND ON OPPOSITE SIDES OF SAID CAVITY, SAID COOLING DUCTS BEING ADAPTED TO CONVEY A COOLING FLUID THERETHROUGH AND HAVING INTAKE AND OUTLET ENDS RESPECTIVELY PROVIDED IN SAID CARRIER MEANS EXTERIORLY OF SAID ROLLER BARREL; AND ELECTROMAGNET MEANS INCLUDING CORE MEANS RECEIVED IN THE CAVITY OF SAID CARRIER MEANS AND CONNECTED TO THE LATTER IN GOOD HEAT TRANSFER RELATIONSHIP THEREWITH, AND COIL MEANS SURROUNDING SAID CORE MEANS AND EXTENDING INTO CLOSE PROXIMITY OF SAID SIDES OF SAID CAVITY WHEREBY HEAT GENERATED BY SAID ELECTROMAGNET MEANS WILL BE RAPIDLY TRANSFERRED TO THE COOLING FLUID IN SAID DUCTS.
Claim 2
Dependent Claim
142 words
A CONVEYOR ROLLER FOR MAGNETICALLY ATTRACTABLE ARTICLES COMPRISING, IN COMBINATION, A ROTATABLE ROLLER BARREL; CARRIER MEANS EXTENDING LONGITUDINALLY INTO THE INTERIOR OF SAID ROLLER BARREL AND FORMED THEREIN WITH A SUBSTANTIALLY RADIALLY EXTENDING CAVITY AND A PAIR OF LONGITUDINALLY EXTENDING COOLING DUCTS IN CLOSE PROXIMITY TO AND ON OPPOSITE SIDES OF SAID CAVITY, SAID COOLING DUCTS BEING ADAPTED TO CONVEY A COOLING FLUID THERETHROUGH AND HAVING INTAKE AND OUTLET ENDS RESPECTIVELY PROVIDED IN SAID CARRIER MEANS EXTERIORLY OF SAID ROLLER BARREL; AND ELECTROMAGNET MEANS INCLUDING CORE MEANS RECEIVED IN THE CAVITY OF SAID CARRIER MEANS AND CONNECTED TO THE LATTER IN GOOD HEAT TRANSFER RELATIONSHIP THEREWITH, AND COIL MEANS SURROUNDING SAID CORE MEANS AND EXTENDING INTO CLOSE PROXIMITY OF SAID SIDES OF SAID CAVITY WHEREBY HEAT GENERATED BY SAID ELECTROMAGNET MEANS WILL BE RAPIDLY TRANSFERRED TO THE COOLING FLUID IN SAID DUCTS.
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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |