US3076582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling particulate material
Assignee: Flintkote Co
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Filing: 1960-03-22
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Granted: 1963-02-05
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Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
- 👤 Louis M Arcement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:59
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/62; B03B5/623; B01; B01F; B01F33/00; B01F33/40; B01F33/405; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/36; B65G65/365
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
APPARATUS FOR HANDLING PARTICULATE MATERIAL COMPOSED OF PARTICLES OF DIFFERENT SIZES AND REQUIRED TO BE TRANSFERRED FROM ONE LOCATION TO ANOTHER, COMPRISING A VERTICALLY ELONGATED CONTAINER ADAPTED TO BE CHARGED WITH SAID MATERIAL AT THE CENTER OF THE TOP THEREOF, SAID CONTAINER HAVING A DOWNWARDLY AND INWARDLY INCLINED BOTTOM SECTION AND A DISCHARGE OUTLET DISPOSED CENTRALLY OF THE BOTTOM THEREOF, AND A FLOW CONTROL MEMBER DISPOSED IN SAID CONTAINER, SAID MEMBER COMPRISING A STATIONARY ELONGATED TUBE POSITIONED VERTICALLY IN SAID CONTAINER IN AXIAL ALIGNMENT WITH SAID DISCHARGE OUTLET AND HAVING A DIAMETER SLIGHTLY GREATER THAN THAT OF SAID OUTLET, THE WALL OF SAID TUBE HAVING AN OPENING EXTENDING IN A HELICAL PATH THEREAROUND FROM THE TOP TO THE BOTTOM THEREOF, SAID TUBE EXTENDING THROUGHOUT THE HEIGHT OF SAID CONTAINER AND HAVING ITS LOWERMOST END DISPOSED AT SAID DISCHARGE OUTLET.
Claim 2
Dependent Claim
139 words
APPARATUS FOR HANDLING PARTICULATE MATERIAL COMPOSED OF PARTICLES OF DIFFERENT SIZES AND REQUIRED TO BE TRANSFERRED FROM ONE LOCATION TO ANOTHER, COMPRISING A VERTICALLY ELONGATED CONTAINER ADAPTED TO BE CHARGED WITH SAID MATERIAL AT THE CENTER OF THE TOP THEREOF, SAID CONTAINER HAVING A DOWNWARDLY AND INWARDLY INCLINED BOTTOM SECTION AND A DISCHARGE OUTLET DISPOSED CENTRALLY OF THE BOTTOM THEREOF, AND A FLOW CONTROL MEMBER DISPOSED IN SAID CONTAINER, SAID MEMBER COMPRISING A STATIONARY ELONGATED TUBE POSITIONED VERTICALLY IN SAID CONTAINER IN AXIAL ALIGNMENT WITH SAID DISCHARGE OUTLET AND HAVING A DIAMETER SLIGHTLY GREATER THAN THAT OF SAID OUTLET, THE WALL OF SAID TUBE HAVING AN OPENING EXTENDING IN A HELICAL PATH THEREAROUND FROM THE TOP TO THE BOTTOM THEREOF, SAID TUBE EXTENDING THROUGHOUT THE HEIGHT OF SAID CONTAINER AND HAVING ITS LOWERMOST END DISPOSED AT SAID DISCHARGE OUTLET.
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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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |