The Black Clawson Company

Organization

Middletown, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods and apparatus for pulping and deinking
- Patent number 5,762,756
- Issue date Jun 9, 1998
- The Black Clawson Company
- Don L. Scott
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Precision hydraulic adjustable stop
- Patent number 5,711,153
- Issue date Jan 27, 1998
- The Black Clawson Company
- Richard S. Tetro
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Extruder screw with multiple flighting
- Patent number 5,599,098
- Issue date Feb 4, 1997
- The Black Clawson Company
- Andrew W. Christie
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Extruder screw for plastic extruders
- Patent number 5,599,097
- Issue date Feb 4, 1997
- The Black Clawson Company
- Andrew W. Christie
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Apparatus for dewatering and or washing papermaking stock
- Patent number 5,591,336
- Issue date Jan 7, 1997
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
High pressure water jet comminuting
- Patent number 5,582,686
- Issue date Dec 10, 1996
- The Black Clawson Company
- David E. Chupka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper pulp washing
- Patent number 5,466,335
- Issue date Nov 14, 1995
- The Black Clawson Company
- Clinton R. Parks
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Screening apparatus with adjustable hydrofoil portion
- Patent number 5,385,240
- Issue date Jan 31, 1995
- The Black Clawson Company
- John J. Egan
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Apparatus and method for thickening pulp and paper stock
- Patent number 5,384,014
- Issue date Jan 24, 1995
- The Black Clawson Company
- Terry L. Bliss
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for thickening pulp and paper stock
- Patent number 5,382,327
- Issue date Jan 17, 1995
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus and method for washing cellulosic pulp
- Patent number 5,367,894
- Issue date Nov 29, 1994
- The Black Clawson Company
- Clinton R. Parks
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Splice tail tape-down method and apparatus
- Patent number 5,356,496
- Issue date Oct 18, 1994
- The Black Clawson Company
- Edward M. Lincoln
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Pelletizer with automatic knife adjustment
- Patent number 5,330,340
- Issue date Jul 19, 1994
- The Black Clawson Company
- Frederick C. Suppon
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Waste paper disintegration, classification and pulping system
- Patent number 5,324,389
- Issue date Jun 28, 1994
- The Black Clawson Company
- Mark W. Spencer
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper pulp washing
- Patent number 5,275,024
- Issue date Jan 4, 1994
- The Black Clawson Company
- Clinton R. Parks
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Gravity type pulp washer or thickener with rotating disrupters
- Patent number 5,266,168
- Issue date Nov 30, 1993
- The Black Clawson Company
- David E. Suica
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and system for defibering paper making materials
- Patent number 5,262,003
- Issue date Nov 16, 1993
- The Black Clawson Company
- David E. Chupka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
High pressure water jet comminuting
- Patent number 5,234,172
- Issue date Aug 10, 1993
- The Black Clawson Company
- David E. Chupka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Screening apparatus for paper making stock
- Patent number 5,221,437
- Issue date Jun 22, 1993
- The Black Clawson Company
- Michael A. Sieron
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Zone controlled deflection compensated roll
- Patent number 5,189,775
- Issue date Mar 2, 1993
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for thickening pulp and paper stock
- Patent number 5,186,791
- Issue date Feb 16, 1993
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper stock screening apparatus having heavy rejects trap
- Patent number 5,186,332
- Issue date Feb 16, 1993
- The Black Clawson Company
- Derald R. Hatton
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Process and system for preparation of waste paper stock with short...
- Patent number 5,133,832
- Issue date Jul 28, 1992
- The Black Clawson Company
- Mark W. Gilkey
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus and method for washing cellulosic pulp
- Patent number 5,122,229
- Issue date Jun 16, 1992
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Screening apparatus for paper making stock
- Patent number 5,078,275
- Issue date Jan 7, 1992
- The Black Clawson Company
- David E. Chupka
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Screening apparatus for paper making stock
- Patent number 5,072,834
- Issue date Dec 17, 1991
- The Black Clawson Company
- David E. Suica
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Seamless screen cylinder with laser cut openings
- Patent number 5,064,537
- Issue date Nov 12, 1991
- The Black Clawson Company
- David E. Chupka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Side extraction pulper with screw type rotor
- Patent number 5,051,151
- Issue date Sep 24, 1991
- The Black Clawson Company
- Joseph P. Constiner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Wire with guide belts for a pulp thickener
- Patent number 5,039,412
- Issue date Aug 13, 1991
- The Black Clawson Company
- Paul G. Marsh
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Froth flotation apparatus and method
- Patent number 5,028,315
- Issue date Jul 2, 1991
- The Black Clawson Company
- Ronald D. Cruea
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

The Black Clawson Company

Organization

Patents Grantslast 30 patents

Methods and apparatus for pulping and deinking

Precision hydraulic adjustable stop

Extruder screw with multiple flighting

Extruder screw for plastic extruders

Apparatus for dewatering and or washing papermaking stock

High pressure water jet comminuting

Paper pulp washing

Screening apparatus with adjustable hydrofoil portion

Apparatus and method for thickening pulp and paper stock

Apparatus for thickening pulp and paper stock

Apparatus and method for washing cellulosic pulp

Splice tail tape-down method and apparatus

Pelletizer with automatic knife adjustment

Waste paper disintegration, classification and pulping system

Paper pulp washing

Gravity type pulp washer or thickener with rotating disrupters

Method and system for defibering paper making materials

High pressure water jet comminuting

Screening apparatus for paper making stock

Zone controlled deflection compensated roll

Apparatus for thickening pulp and paper stock

Paper stock screening apparatus having heavy rejects trap

Process and system for preparation of waste paper stock with short...

Apparatus and method for washing cellulosic pulp

Screening apparatus for paper making stock

Screening apparatus for paper making stock

Seamless screen cylinder with laser cut openings

Side extraction pulper with screw type rotor

Wire with guide belts for a pulp thickener

Froth flotation apparatus and method