Richard W. LaValley

Person

Vancouver, WA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Vacuum filter system and vacuum filter discharge flow assembly
- Patent number 4,816,169
- Issue date Mar 28, 1989
- LaValley Industries, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Replaceable trunnion seal
- Patent number 4,795,572
- Issue date Jan 3, 1989
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Shower pipes for rotary drum filter
- Patent number 4,795,558
- Issue date Jan 3, 1989
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Shower pipes for rotary drum filter
- Patent number 4,697,292
- Issue date Oct 6, 1987
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Vacuum breaker valve-discharge elbow assembly for rotary drum filters
- Patent number 4,683,059
- Issue date Jul 28, 1987
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filtrate discharge accelerator system for center valve filter drums
- Patent number 4,680,115
- Issue date Jul 14, 1987
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method and apparatus for washing a mat of pulp stock on a drum filter
- Patent number 4,670,099
- Issue date Jun 2, 1987
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Electrolytic cell head with replaceable insert and method of protec...
- Patent number 4,632,739
- Issue date Dec 30, 1986
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Adjustable mounting for valve-discharge elbow of rotary drum filters
- Patent number 4,608,171
- Issue date Aug 26, 1986
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Angularly adjustable breaker valve-discharge elbow for rotary drum...
- Patent number 4,608,170
- Issue date Aug 26, 1986
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Butterfly valve with pressurized O-ring sale
- Patent number 4,540,457
- Issue date Sep 10, 1985
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Shower pipes for rotary drum filter
- Patent number 4,522,716
- Issue date Jun 11, 1985
- Richard W. LaValley
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of making a rotary drum filter and method of making an annul...
- Patent number 4,419,165
- Issue date Dec 6, 1983
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of making an annular valve housing for a rotary drum filter
- Patent number 4,383,877
- Issue date May 17, 1983
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Rotary drum filter
- Patent number 4,370,231
- Issue date Jan 25, 1983
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Trunnion and trunnion packing sleeve insert for rotary drum filter
- Patent number 4,248,716
- Issue date Feb 3, 1981
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Replaceable valve seat for center valve filter drum
- Patent number 4,154,687
- Issue date May 15, 1979
- LaValley Industrial Plastics, Inc.
- Richard W. LaValley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Richard W. LaValley

Person

Patents Grantslast 30 patents

Vacuum filter system and vacuum filter discharge flow assembly

Replaceable trunnion seal

Shower pipes for rotary drum filter

Shower pipes for rotary drum filter

Vacuum breaker valve-discharge elbow assembly for rotary drum filters

Filtrate discharge accelerator system for center valve filter drums

Method and apparatus for washing a mat of pulp stock on a drum filter

Electrolytic cell head with replaceable insert and method of protec...

Adjustable mounting for valve-discharge elbow of rotary drum filters

Angularly adjustable breaker valve-discharge elbow for rotary drum...

Butterfly valve with pressurized O-ring sale

Shower pipes for rotary drum filter

Method of making a rotary drum filter and method of making an annul...

Method of making an annular valve housing for a rotary drum filter

Rotary drum filter

Trunnion and trunnion packing sleeve insert for rotary drum filter

Replaceable valve seat for center valve filter drum