Patent US3233535A successfully refreshed from Google Patents.
US3233535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal coffee brewer
Assignee: HAVAJAVA Manufacturing CO
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Filing: 1962-12-27
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Granted: 1966-02-08
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 Henry D Fowlie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:38
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/22; A47J31/24; A47J31/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
A COFFEE BREWER COMPRISING (A) A ROTATABLE SHAFT, (B) TWO HOLLOW MATING BREWING CONTAINER PARTS ROTATABLE WITH THE SHAFT, SAID PORTS HAVING PERIPHERAL LIPS, MEANS FOR SPACING SAID LIPS TO DEFINE A SMALLEST ORIFICE THEREBETWEEN, ONE OF SAID PARTS BEING LONGITUDINALLY MOVABLE WITH RESPECT TO THE OTHER TO VARY THE SIZE OF THE ORIFICE BETWEEN SAID LIPS, SAID CONTAINER PARTS DEFINING A WEDGE SHAPED INTERNAL SPACE ADJACENT TO THE INNER EDGE OF THE PERIPHERAL LIPS, (C) MEANS FOR ROTATING THE SHAFT, (D) MEANS FOR INJECTING HOT WATER AND GROUND COFFEE INTO THE CONTAINER PARTS, (E) THE COFFEE GROUNDS BEING IMPACTED INTO THE WEDGE SHAPED SPACE UPON ROTATION OF THE PARTS, (F) A PAIR OF SPACED COLLECTORS CIRCUMSCRIBED ABOUT THE OUTER EDGES OF THE CONTAINER LIPS, SAID COLLECTORS BEING MOVABLE IN UNISON RELATIVELY LONGITUDINALLY WITH RESPECT TO THE CONTAINER LIPS, (G) HOLD DOWN MEANS FOR HOLDING THE CONTAINER PARTS IN THE SMALLER ORIFICE SIZE DURING ROTATION OF THE CONTAINER PARTS TO RETAIN THE GROUND COFFEE WITHIN THE WEDGE SHAPED SPACE, THE FIRST OF SAID COLLECTORS BEING JUXTAPOSED TO THE SMALLER ORIFICE OPENING, (H) MEANS FOR CONDITIONING THE CONTAINER PARTS SO THAT FURTHER ROTATION THEREOF WILL CAUSE THE IMPACTED GROUND COFFEE TO MOVE THE CONTAINER PARTS APART AND CAUSE THE ORIFICE TO ASSUME ITS LARGER SIZE, AND (I) MEANS FOR MOVING THE SECOND OF THE COLLECTORS INTO JUXTAPOSITION WITH THE LARGER ORIFICE OPENING.
Claim 2
Dependent Claim
231 words
A COFFEE BREWER COMPRISING (A) A ROTATABLE SHAFT, (B) TWO HOLLOW MATING BREWING CONTAINER PARTS ROTATABLE WITH THE SHAFT, SAID PORTS HAVING PERIPHERAL LIPS, MEANS FOR SPACING SAID LIPS TO DEFINE A SMALLEST ORIFICE THEREBETWEEN, ONE OF SAID PARTS BEING LONGITUDINALLY MOVABLE WITH RESPECT TO THE OTHER TO VARY THE SIZE OF THE ORIFICE BETWEEN SAID LIPS, SAID CONTAINER PARTS DEFINING A WEDGE SHAPED INTERNAL SPACE ADJACENT TO THE INNER EDGE OF THE PERIPHERAL LIPS, (C) MEANS FOR ROTATING THE SHAFT, (D) MEANS FOR INJECTING HOT WATER AND GROUND COFFEE INTO THE CONTAINER PARTS, (E) THE COFFEE GROUNDS BEING IMPACTED INTO THE WEDGE SHAPED SPACE UPON ROTATION OF THE PARTS, (F) A PAIR OF SPACED COLLECTORS CIRCUMSCRIBED ABOUT THE OUTER EDGES OF THE CONTAINER LIPS, SAID COLLECTORS BEING MOVABLE IN UNISON RELATIVELY LONGITUDINALLY WITH RESPECT TO THE CONTAINER LIPS, (G) HOLD DOWN MEANS FOR HOLDING THE CONTAINER PARTS IN THE SMALLER ORIFICE SIZE DURING ROTATION OF THE CONTAINER PARTS TO RETAIN THE GROUND COFFEE WITHIN THE WEDGE SHAPED SPACE, THE FIRST OF SAID COLLECTORS BEING JUXTAPOSED TO THE SMALLER ORIFICE OPENING, (H) MEANS FOR CONDITIONING THE CONTAINER PARTS SO THAT FURTHER ROTATION THEREOF WILL CAUSE THE IMPACTED GROUND COFFEE TO MOVE THE CONTAINER PARTS APART AND CAUSE THE ORIFICE TO ASSUME ITS LARGER SIZE, AND (I) MEANS FOR MOVING THE SECOND OF THE COLLECTORS INTO JUXTAPOSITION WITH THE LARGER ORIFICE OPENING.
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |