US3102694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing and crushing
Assignee: Frenkel AG C D
•
Filing: 1961-05-29
•
Granted: 1963-09-03
•
Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Meyer S Frenkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:33
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/42; B29B7/425; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/50; B29C48/505; B29C48/56; B29C48/68; B29C48/685; B29C48/686; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
245 words
IN APPARATUS FOR MIXING AND CRUSHING, A BARREL COMPONENT AND A WORM COMPONENT COAXIAL WITH SAID BARREL, SAID BARREL HAVING AN INNER AND SAID WORM HAVING AN OUTER HELICAL THREAD EACH WITH LANDS BETWEEN ADJACENT THREAD GROOVE CONVOLUTIONS SO THAT THE LANDS OF THE WORM FACE THE LANDS OF THE BARREL, SAID THREADS BEING OF OPPOSITE LEADS, THE CROSS-SECTIONAL AREAS OF OPPOSITE THREAD GROOVE PORTIONS VARYING THE ONE FROM A MAXIMUM TO A MINIMUM VALUE AND THE OTHER ONE FROM A MINIMUM TO A MAXIMUM VALUE SO THAT SAID PORTIONS COMPLEMENT EACH OTHER TO FORM A CONTINUOUS PASSAGE HAVING AN ENTRANCE AND AN EXIT END FOR A MEDIUM TO BE MIXED, THE LANDS OF SAID BARREL THREAD BEING LOCATED ON A FIRST SUBSTANTIALLY CONICAL SURFACE AND THE LANDS OF THE WORM THREAD BEING LOCATED ON A SECOND SUBSTANTIALLY CONICAL SURFACE PARALLEL TO THE FIRST ONE, SAID WORM BEING AXIALLY SHIFTABLE IN RELATION TO SAID BARREL THEREBY TO VARY THE SPACING OF SAID SURFACES FROM EACH OTHER, AT LEAST ONE OF SAID COMPONENTS BEING ROTATABLE IN THE DIRECTION OF THE LEAD OF ITS THREAD SO AS TO CONVEY THE MEDIUM TOWARDS SAID EXIT END, AND THE THREAD GROOVE PORTION VARYING IN CROSS-SECTION AREA FROM A MAXIMUM TO A MINIMUM HAVING ITS LANDS NARROWER THAN ITS GROOVE FORMED THEREBETWEEN, AND THE THREAD GROOVE PORTION ON SAID OTHER COMPONENT VARYING IN CROSS-SECTIONAL AREA FROM A MINIMUM TO A MAXIMUM HAVING ITS LANDS BROADER THAN ITS GROOVE FORMED THEREBETWEEN.
Claim 2
Dependent Claim
245 words
IN APPARATUS FOR MIXING AND CRUSHING, A BARREL COMPONENT AND A WORM COMPONENT COAXIAL WITH SAID BARREL, SAID BARREL HAVING AN INNER AND SAID WORM HAVING AN OUTER HELICAL THREAD EACH WITH LANDS BETWEEN ADJACENT THREAD GROOVE CONVOLUTIONS SO THAT THE LANDS OF THE WORM FACE THE LANDS OF THE BARREL, SAID THREADS BEING OF OPPOSITE LEADS, THE CROSS-SECTIONAL AREAS OF OPPOSITE THREAD GROOVE PORTIONS VARYING THE ONE FROM A MAXIMUM TO A MINIMUM VALUE AND THE OTHER ONE FROM A MINIMUM TO A MAXIMUM VALUE SO THAT SAID PORTIONS COMPLEMENT EACH OTHER TO FORM A CONTINUOUS PASSAGE HAVING AN ENTRANCE AND AN EXIT END FOR A MEDIUM TO BE MIXED, THE LANDS OF SAID BARREL THREAD BEING LOCATED ON A FIRST SUBSTANTIALLY CONICAL SURFACE AND THE LANDS OF THE WORM THREAD BEING LOCATED ON A SECOND SUBSTANTIALLY CONICAL SURFACE PARALLEL TO THE FIRST ONE, SAID WORM BEING AXIALLY SHIFTABLE IN RELATION TO SAID BARREL THEREBY TO VARY THE SPACING OF SAID SURFACES FROM EACH OTHER, AT LEAST ONE OF SAID COMPONENTS BEING ROTATABLE IN THE DIRECTION OF THE LEAD OF ITS THREAD SO AS TO CONVEY THE MEDIUM TOWARDS SAID EXIT END, AND THE THREAD GROOVE PORTION VARYING IN CROSS-SECTION AREA FROM A MAXIMUM TO A MINIMUM HAVING ITS LANDS NARROWER THAN ITS GROOVE FORMED THEREBETWEEN, AND THE THREAD GROOVE PORTION ON SAID OTHER COMPONENT VARYING IN CROSS-SECTIONAL AREA FROM A MINIMUM TO A MAXIMUM HAVING ITS LANDS BROADER THAN ITS GROOVE FORMED THEREBETWEEN.
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |