Oscar Luthi

Person

Nashua, NH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for producing small particles from high consistency wood...
- Patent number 5,810,973
- Issue date Sep 22, 1998
- Beloit Technologies, Inc.
- Lawrence Allan Carlsmith
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for cooling and ozone bleaching wood pulp
- Patent number 5,688,368
- Issue date Nov 18, 1997
- Beloit Technologies, Inc.
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Air inflow restrictor for vacuum filters
- Patent number 5,683,582
- Issue date Nov 4, 1997
- Beloit Technologies, Inc.
- Oscar Luthi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Pulp slurry-handling press roll and twin and single roll slurry han...
- Patent number 5,667,642
- Issue date Sep 16, 1997
- Beloit Technologies, Inc.
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Wood pulp ozone bleaching contactor
- Patent number 5,626,297
- Issue date May 6, 1997
- Beloit Technologies, Inc.
- Lawrence A. Carlsmith
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulp slurry-handling, centrifugal pump
- Patent number 5,520,506
- Issue date May 28, 1996
- Ingersoll-Rand Company
- Oscar Luthi
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Air inflow restrictor for disc filters
- Patent number 5,503,737
- Issue date Apr 2, 1996
- Ingersoll-Rand Company
- Oscar Luthi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Anti-rewet deck for press rolls
- Patent number 5,470,471
- Issue date Nov 28, 1995
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Inlet slice assembly, for a pulp slurry processing machine
- Patent number 5,456,804
- Issue date Oct 10, 1995
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Screening apparatus for papermaking pulp
- Patent number 5,307,939
- Issue date May 3, 1994
- Ingersoll-Rand Company
- Douglas L. G. Young
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Method and apparatus for control of filtrate volume in a disc filter
- Patent number 5,238,564
- Issue date Aug 24, 1993
- Ingersoll-Rand Company
- Oscar Luthi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Multiphase pulp washer
- Patent number 5,046,338
- Issue date Sep 10, 1991
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Filter deck assembly sliding seal
- Patent number 4,906,364
- Issue date Mar 6, 1990
- Ingersoll-Rand Company
- Oscar Luthi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Pressure pulp washer
- Patent number 4,894,121
- Issue date Jan 16, 1990
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulp washer discharging a pulp slurry at a controlled consistency
- Patent number 4,827,741
- Issue date May 9, 1989
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of washing pulp in a pressure pulp washer adding two washing...
- Patent number 4,808,265
- Issue date Feb 28, 1989
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulp centrifugal pump
- Patent number 4,770,604
- Issue date Sep 13, 1988
- Ingersoll-Rand Company
- Oscar Luthi
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Method of reducing the lignin in wood pulp with oxygen gas recircul...
- Patent number 4,581,104
- Issue date Apr 8, 1986
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Fiberglass-reinforced solid plastic drum
- Patent number 4,515,693
- Issue date May 7, 1985
- Ingersoll-Rand Company
- Oscar Luthi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Conduction dryer for flaked or fluffed material
- Patent number 4,480,392
- Issue date Nov 6, 1984
- Ingersoll-Rand Company
- Oscar Luthi
- F26 - DRYING
Information Patent Grant
Mixer for use in pulp processes
- Patent number 4,435,085
- Issue date Mar 6, 1984
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
System for drying wet, porous webs
- Patent number 4,364,185
- Issue date Dec 21, 1982
- Ingersoll-Rand Company
- Jules L. Dussourd
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Clarifier bubble generation and distribution nozzle
- Patent number 4,338,192
- Issue date Jul 6, 1982
- Ingersoll-Rand Company
- Eugene L. Krasnoff
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Disk press
- Patent number 4,321,140
- Issue date Mar 23, 1982
- Ingersoll-Rand Company
- Oscar Luthi
- B30 - PRESSES
Information Patent Grant
Paper sheet dryer
- Patent number 4,297,794
- Issue date Nov 3, 1981
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Centrifugal separator
- Patent number 4,265,740
- Issue date May 5, 1981
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper drier drum
- Patent number 4,251,927
- Issue date Feb 24, 1981
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper web drying system and process
- Patent number 4,242,808
- Issue date Jan 6, 1981
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulp washer discharging a low consistency pulp slurry
- Patent number 4,217,170
- Issue date Aug 12, 1980
- Ingersoll-Rand Company
- Oscar Luthi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Mixing device
- Patent number 4,099,268
- Issue date Jul 4, 1978
- Ingersoll-Rand Company
- Oscar Luthi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Oscar Luthi

Person

Patents Grantslast 30 patents

Apparatus for producing small particles from high consistency wood...

Method for cooling and ozone bleaching wood pulp

Air inflow restrictor for vacuum filters

Pulp slurry-handling press roll and twin and single roll slurry han...

Wood pulp ozone bleaching contactor

Pulp slurry-handling, centrifugal pump

Air inflow restrictor for disc filters

Anti-rewet deck for press rolls

Inlet slice assembly, for a pulp slurry processing machine

Screening apparatus for papermaking pulp

Method and apparatus for control of filtrate volume in a disc filter

Multiphase pulp washer

Filter deck assembly sliding seal

Pressure pulp washer

Pulp washer discharging a pulp slurry at a controlled consistency

Method of washing pulp in a pressure pulp washer adding two washing...

Pulp centrifugal pump

Method of reducing the lignin in wood pulp with oxygen gas recircul...

Fiberglass-reinforced solid plastic drum

Conduction dryer for flaked or fluffed material

Mixer for use in pulp processes

System for drying wet, porous webs

Clarifier bubble generation and distribution nozzle

Disk press

Paper sheet dryer

Centrifugal separator

Paper drier drum

Paper web drying system and process

Pulp washer discharging a low consistency pulp slurry

Mixing device