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Patent US3347528A successfully refreshed from Google Patents.
US3347528A
Expired / Lapsed
US
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Kneading and mixing apparatus
Assignee: Individual
•
Filing: 1965-01-21
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Granted: 1967-10-17
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Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 List Heinz
- 👤 Rouner Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:37
CPC Classifications
A; A21; A21C; A21C1/00; A21C1/06; A21C1/065; B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/42; B29B7/422; B29B7/423; B29C; B29C48/00; B29C48/25; B29C48/268; B29C48/36; B29C48/395; B29C48/50; B29C48/68; B29C48/685; B29C48/687; B29C48/76; B29C48/765; B29C48/766; B29C48/767; B29C48/92; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/1143; B01F27/60; B29C2948/00; B29C2948/92; B29C2948/92504; B29C2948/9258; B29C2948/92819; B29C2948/92857; B29C2948/92876; B29C2948/92885; B29C2948/92895; B29C48/03; B29C48/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A SCREW TYPE KNEADING AND MIXING APPARATUS HAVING A FEEDING AND A DISCHARGE END, AND A LONDITUDINAL AXIS, COMPRISING (A) A HOUSING MEANS INCLUDING AT LEAST (1) A KNEADING SECTION MOUNTED FOR AXIAL RECIPROCATION, (2) A DISCHARGE SECTION, SAID KNEADING SECTION BEING REARWARDLY OF SAID DISCHARGE SECTION, WHEN VIEWED TOWARD SAID DISCHARGE END, AND (3) KNEADING TEETH SECURED ALONG A HELICAL LINE TO AT LEAST A PORTION OF THE INNER WALL OF SAID KNEADING SECTION, (4) MEANS FOR RECIPROCATING SAID KNEADING SECTION, AND (B) A SCREW ROTATABLY MOUNTED WITHIN SAID HOUSING MEANS, AND SCREW HAVING (1) THREAD PORTIONS, THE AXIAL EXTEND OF THE AREA OF SAID THREAD PORTIONS BEING APPROXIMATELY COEXTENSIVE WITH THE AXIAL EXTENT OF THE AREA OF SAID KNEADING TEETH, SAID TEETH EXTENDING INTO THE SPACES BETWEEN SAID THEREAD PORTIONS, AND (2) HELICAL THREADS APPROXIMATELY COEXTENSIVE WITH SAID DISCHARGE SECTION.
Claim 2
Dependent Claim
142 words
A SCREW TYPE KNEADING AND MIXING APPARATUS HAVING A FEEDING AND A DISCHARGE END, AND A LONDITUDINAL AXIS, COMPRISING (A) A HOUSING MEANS INCLUDING AT LEAST (1) A KNEADING SECTION MOUNTED FOR AXIAL RECIPROCATION, (2) A DISCHARGE SECTION, SAID KNEADING SECTION BEING REARWARDLY OF SAID DISCHARGE SECTION, WHEN VIEWED TOWARD SAID DISCHARGE END, AND (3) KNEADING TEETH SECURED ALONG A HELICAL LINE TO AT LEAST A PORTION OF THE INNER WALL OF SAID KNEADING SECTION, (4) MEANS FOR RECIPROCATING SAID KNEADING SECTION, AND (B) A SCREW ROTATABLY MOUNTED WITHIN SAID HOUSING MEANS, AND SCREW HAVING (1) THREAD PORTIONS, THE AXIAL EXTEND OF THE AREA OF SAID THREAD PORTIONS BEING APPROXIMATELY COEXTENSIVE WITH THE AXIAL EXTENT OF THE AREA OF SAID KNEADING TEETH, SAID TEETH EXTENDING INTO THE SPACES BETWEEN SAID THEREAD PORTIONS, AND (2) HELICAL THREADS APPROXIMATELY COEXTENSIVE WITH SAID DISCHARGE SECTION.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |