Peter Seifert

Person

Middletown, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Wedge wire and paper stock screening apparatus incorporating such w...
- Patent number 6,595,373
- Issue date Jul 22, 2003
- Kadant Black Clawson, Inc.
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper stock screening apparatus and method
- Patent number 6,193,073
- Issue date Feb 27, 2001
- Thermo Black Clawson Inc.
- David E. Chupka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for pulping and deinking
- Patent number 6,120,648
- Issue date Sep 19, 2000
- Thermo Black Clawson Inc.
- Don L. Scott
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
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
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
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
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
Apparatus and method for thickening pulp and paper stock
- Patent number 4,722,793
- Issue date Feb 2, 1988
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Screening apparatus for paper making stock
- Patent number 4,410,424
- Issue date Oct 18, 1983
- The Black Clawson Company
- David E. Chupka
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
High turbulence screen
- Patent number 4,383,918
- Issue date May 17, 1983
- The Black Clawson Company
- David E. Chupka
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Dual flow screening apparatus
- Patent number 4,328,096
- Issue date May 4, 1982
- The Black Clawson Company
- David E. Chupka
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Method of operating a disk refiner provided with reversible refinin...
- Patent number 4,171,101
- Issue date Oct 16, 1979
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Defibering apparatus for paper making stock
- Patent number RE30011
- Issue date May 29, 1979
- The Black Clawson Company
- Peter Seifert
- 241 - Solid material comminution or disintegration
Information Patent Grant
High turbulence screen
- Patent number 4,155,841
- Issue date May 22, 1979
- The Black Clawson Company
- David E. Chupka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Reverse centrifugal cleaning of paper making stock
- Patent number 4,155,839
- Issue date May 22, 1979
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Thickener apparatus including a shaftless cylinder mold
- Patent number 4,106,980
- Issue date Aug 15, 1978
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for screening paper fiber stock
- Patent number 4,105,543
- Issue date Aug 8, 1978
- The Black Clawson Company
- Peter Seifert
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Cone press
- Patent number 4,099,458
- Issue date Jul 11, 1978
- The Black Clawson Company
- Peter Seifert
- B30 - PRESSES
Information Patent Grant
Reversible disk refiner plates
- Patent number 4,081,147
- Issue date Mar 28, 1978
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for screening paper fiber stock
- Patent number 3,970,548
- Issue date Jul 20, 1976
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Defibering apparatus for paper making stock
- Patent number 3,960,332
- Issue date Jun 1, 1976
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Cone press
- Patent number 3,948,165
- Issue date Apr 6, 1976
- The Black Clawson Company
- Peter Seifert
- B30 - PRESSES

Peter Seifert

Person

Patents Grantslast 30 patents

Wedge wire and paper stock screening apparatus incorporating such w...

Paper stock screening apparatus and method

Apparatus for pulping and deinking

Methods and apparatus for pulping and deinking

Apparatus for dewatering and or washing papermaking stock

High pressure water jet comminuting

Apparatus for thickening pulp and paper stock

Apparatus and method for washing cellulosic pulp

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

Apparatus and method for washing cellulosic pulp

Screening apparatus for paper making stock

Apparatus and method for thickening pulp and paper stock

Screening apparatus for paper making stock

High turbulence screen

Dual flow screening apparatus

Method of operating a disk refiner provided with reversible refinin...

Defibering apparatus for paper making stock

High turbulence screen

Reverse centrifugal cleaning of paper making stock

Thickener apparatus including a shaftless cylinder mold

Method for screening paper fiber stock

Cone press

Reversible disk refiner plates

Apparatus for screening paper fiber stock

Defibering apparatus for paper making stock

Cone press