Patent US3688563A successfully refreshed from Google Patents.
US3688563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring the beating degree of pulp flowing through a conduit
Assignee: KAELLE REGULATORER AB
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Filing: 1971-05-04
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Granted: 1972-09-05
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Expires: 1991-05-04
Abstract
Abstract The beating degree of pulp flowing through a conduit is determined by a cylinder connected to the conduit and containing a movable piston partly formed as a strainer. The inner end of the cylinder can be closed by a cover when a sample has been withdrawn, and pressure fluid can be supplied to the cylinder to cause a dewatering of the sample through the strainer.
Inventors
- 👤 Knut Enarsson
- 👤 Henrik M Kitsnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:33
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
179 words
Apparatus for measuring the beating degree of pulp flowing through a conduit, comprising a vertical sampling cylinder closed at its bottom but open at the top, the upper end of the cylinder being connected to a corresponding opening in the lower wall of a substantially horizontal portion of said conduit, a cover plate mounted within the conduit above the cylinder and adapted to be moved to and from a position in which the open cylinder end is kept closed, a piston movable in the cylinder, said piston being composed of a strainer disk and a solid disk normally covering the bottom side of the strainer disk but movable therefrom to form a space below the strainer, when the latter reaches its lowest position, a tapping pipe extending from said space to a measuring vessel, a valve in said pipe, and a valve controlled pressure fluid conduit connectEd to the upper end of the cylinder, whereby a sample of pulp filling the cylinder may be dewatered at overpressure, when the upper cylinder end has been closed by the cover plate.
Claim 2
Dependent Claim
179 words
Apparatus for measuring the beating degree of pulp flowing through a conduit, comprising a vertical sampling cylinder closed at its bottom but open at the top, the upper end of the cylinder being connected to a corresponding opening in the lower wall of a substantially horizontal portion of said conduit, a cover plate mounted within the conduit above the cylinder and adapted to be moved to and from a position in which the open cylinder end is kept closed, a piston movable in the cylinder, said piston being composed of a strainer disk and a solid disk normally covering the bottom side of the strainer disk but movable therefrom to form a space below the strainer, when the latter reaches its lowest position, a tapping pipe extending from said space to a measuring vessel, a valve in said pipe, and a valve controlled pressure fluid conduit connectEd to the upper end of the cylinder, whereby a sample of pulp filling the cylinder may be dewatered at overpressure, when the upper cylinder end has been closed by the cover plate.
Claim 3
Dependent Claim
110 words
Apparatus as claimed in claim 1, in which the strainer disk is secured to a tubular piston rod extending through the sampling cylinder, in which the solid piston disk is secured to the upper end of a second tube slidably inserted through an opening in the bottom wall of the cylinder, in which the lower end of the second tube is connected to a valve controlled conduit for supply of pressure fluid, and in which the lower end of the tubular piston rod is slidably connected to the upper end of said second tube so as to form a channel for the pressure fluid to the top of the cylinder.
Claim 4
Dependent Claim
42 words
Apparatus as claimed in claim 1, in which a valve controlled conduit for supply of rinsing water is connected to the lower end of the sampling cylinder, an outlet controlled by a valve being provided at the upper end of said cylinder.
Claim 5
Dependent Claim
25 words
Apparatus as claimed in claim 1, in which springs are provided to force the cover plate on to the upper end of the sampling cylinder.
References Cited (Backward Citations)
DE1043669B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |