US3240437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refiner plate
Assignee: Bauer Brothers Co
•
Filing: 1963-06-17
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Granted: 1966-03-15
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Anton J Horstman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:23
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
139 words
A PULP REFINER UNIT INCLUDING OPPOSED RELATIVELY ROTATABLE DISCS, MEANS DEFINING A REFINING SURFACE AT EACH OF THE RELATIVELY ADJACENT FACES OF SAID DISCS, SAID REFINING SURFACES BEING CONTINUOUSLY SLOPED IN A RADIAL SENSE TO FROM A REFINING THROAT THEREBETWEEN WHICH IS WIDELY DIVERGENT TO ITS ENTRANCE END AT THE INNER EXTREMITIES OF THE REFINING SURFACES AND GRADUALLY DECREASED IN CROSS-SECTION TO ITS EXIT END AT THE OUTER EXTREMITIES OF THE REFINING SURFACES, SAID REFINING SURFACES HAVING MEANS FLATLY PROJECTED THEREFROM THE EXERT A ROLLING INFLUENCE ON MATERIALS PASSED THEREBETWEEN TO INITIALLY ORIENT SUCH MATERIAL IN A RADIAL SENSE AND CAUSE IT TO ASSUME THE FORM OF CYLINDRICAL PARTICLES, SAID REFINING SURFACES HAVING MEANS PROJECTED THEREFROM TO THEIR EXIT ENDS FORMED TO COMPRESS THE PARTICLES TO A DEGREE THE ELEMENTS THEREOF PHYSICALLY SEPARATE ON FLOW OF THE PARTICLES THEREBY.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |