US3359786A
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Method of and apparatus for determining the shives content in a fiber suspension
Assignee: OSAKEYHTIO KESKUSLABORATORIO C
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Filing: 1965-04-06
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Granted: 1967-12-26
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Expires: 1985-04-06
Abstract
No abstract record available.
Inventors
- 👤 Alfthan Georg Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:33
CPC Classifications
D; D21; D21G; D21G9/00; D21G9/0009; G; G01; G01N; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD FOR THE DETERMINATION OF THE SHIVE CONTENT OF PULPS, COMPRISING FORMING A LIQUID SUSPENSION OF A SELECTED AMOUNT OF PULP, CAUSING SAID SUSPENSION TO FLOW ALONG A RESTRICTED PATH INCLUDING A SLIT, DIMENSIONING SAID SLIT TO ALLOW FIBERS TO PASS BUT TO RETAIN PATICLES EXCEEDING A PRE-SELECTED SIZE, DETECTING A PRE-SELECTED DECREASE OF FLOW THROUGH SAID SLIT CAUSED BY ITS PARTIAL CLOGGING BY RETAINED PARTICLES, MOMENTARILY WIDENING SAID SLIT FOR RINSING IT OF SAID RETAINED PARTICLES UPON DETECTING SAID DECREASE OF FLOW, AND REGISTERING THE NUMBER OF RINSINGS
Claim 2
Independent Claim
90 words
A METHOD FOR THE DETERMINATION OF THE SHIVE CONTENT OF PULPS, COMPRISING FORMING A LIQUID SUSPENSION OF A SELECTED AMOUNT OF PULP, CAUSING SAID SUSPENSION TO FLOW ALONG A RESTRICTED PATH INCLUDING A SLIT, DIMENSIONING SAID SLIT TO ALLOW FIBERS TO PASS BUT TO RETAIN PATICLES EXCEEDING A PRE-SELECTED SIZE, DETECTING A PRE-SELECTED DECREASE OF FLOW THROUGH SAID SLIT CAUSED BY ITS PARTIAL CLOGGING BY RETAINED PARTICLES, MOMENTARILY WIDENING SAID SLIT FOR RINSING IT OF SAID RETAINED PARTICLES UPON DETECTING SAID DECREASE OF FLOW, AND REGISTERING THE NUMBER OF RINSINGS
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |