Patents by Inventor Robert Widerski

Robert Widerski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pulse jet air cleaner systems; components; and, methods
    Patent number: 10967320
    Abstract: Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a possible pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; possible evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: April 6, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Gary Gillingham, Fred Wahlquist, Thomas Olson, Charles Jensen, Ervin Fuchs, Eugene Wilson, Robert Widerski
  • PULSE JET AIR CLEANER SYSTEMS; COMPONENTS; AND, METHODS
    Publication number: 20200230538
    Abstract: Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a possible pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; possible evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Application
    Filed: November 21, 2019
    Publication date: July 23, 2020
    Inventors: Gary Gillingham, Fred Wahlquist, Thomas Olson, Charles Jensen, Ervin Fuchs, Eugene Wilson, Robert Widerski
  • Pulse jet air cleaner systems, components, and, methods
    Patent number: 10512870
    Abstract: Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a possible pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; possible evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: December 24, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Gary Gillingham, Fred Wahlquist, Thomas Olson, Charles Jensen, Ervin Fuchs, Eugene Wilson, Robert Widerski
  • PULSE JET AIR CLEANER SYSTEMS, COMPONENTS, AND, METHODS
    Publication number: 20170368489
    Abstract: Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a possible pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; possible evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Application
    Filed: September 11, 2017
    Publication date: December 28, 2017
    Inventors: Gary Gillingham, Fred Wahlquist, Thomas Olson, Charles Jensen, Ervin Fuchs, Eugene Wilson, Robert Widerski
  • Pulse jet air cleaner systems, components, and, methods
    Patent number: 9757673
    Abstract: Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a possible pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; possible evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: September 12, 2017
    Assignee: Donaldson Company, Inc.
    Inventors: Gary Gillingham, Fred Wahlquist, Thomas Olson, Charles Jensen, Ervin Fuchs, Eugene Wilson, Robert Widerski
  • PULSE JET AIR CLEANER SYSTEMS, COMPONENTS, AND, METHODS
    Publication number: 20150343362
    Abstract: Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a possible pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; possible evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Application
    Filed: August 13, 2015
    Publication date: December 3, 2015
    Inventors: GARY GILLINGHAM, Fred Wahlquist, Thomas Olson, Charles Jensen, Ervin Fuchs, Eugene Wilson, Robert Widerski
  • Pulse jet air cleaner systems; components; and, methods
    Patent number: 9108135
    Abstract: Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: August 18, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Gary Gillingham, Fred Wahlquist, Thomas Olson, Charles Jensen, Ervin Fuchs, Eugene Wilson, Robert Widerski
  • Pulse jet air cleaner system; components; and, methods
    Patent number: 8404021
    Abstract: Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: March 26, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Gary R. Gillingham, Fred H. Wahlquist, Thomas R. Olson, Charles D. Jensen, Ervin P. Fuchs, Eugene D. Wilson, Robert Widerski
  • Air cleaner arrangement; serviceable filter cartridge; and, methods
    Patent number: 8382876
    Abstract: Principles, techniques and configurations applicable in air cleaner arrangements and filter cartridges therefore, are described. In general the filter cartridge includes an axial pivot arrangement, for pivoting the filter cartridge in place, when mounted in an air cleaner for use. The air cleaner may include a base pivot, for engagement with the pivot projection on the filter cartridge. Methods of assembly, installation and use are described.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: February 26, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Robert Widerski, Randall Engelland, Thomas Olson, Gary Gillingham, Richard Suydam
  • AIR CLEANER ARRANGEMENT; SERVICEABLE FILTER CARTRIDGE; AND, METHODS
    Publication number: 20120042616
    Abstract: Principles, techniques and configurations applicable in air cleaner arrangements and filter cartridges therefore, are described. In general the filter cartridge includes an axial pivot arrangement, for pivoting the filter cartridge in place, when mounted in an air cleaner for use. The air cleaner may include a base pivot, for engagement with the pivot projection on the filter cartridge. Methods of assembly, installation and use are described.
    Type: Application
    Filed: October 31, 2011
    Publication date: February 23, 2012
    Applicant: Donaldson Company, Inc.
    Inventors: Robert Widerski, Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Richard Lawrence Suydam
  • Air cleaner arrangements; serviceable filter cartridge; and, methods
    Patent number: 8048188
    Abstract: Principles, techniques and configurations applicable in air cleaner arrangements and filter cartridges therefore, are described. In general the filter cartridge includes an axial pivot arrangement, for pivoting the filter cartridge in place, when mounted in an air cleaner for use. The air cleaner preferably includes a base pivot, for engagement with the pivot projection on the filter cartridge. Methods of assembly, installation and use are described.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: November 1, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: Robert Widerski, Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Richard Lawrence Suydam
  • Pulse jet air cleaner system; components; and, methods
    Publication number: 20110011042
    Abstract: Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.
    Type: Application
    Filed: June 18, 2007
    Publication date: January 20, 2011
    Applicant: Donaldson Company, Inc.
    Inventors: Gary R. Gillingham, Fred H. Wahlquist, Thomas R. Olson, Charles D. Jensen, Erwin P. Fuchs, Eugene D. Wilson, Robert Widerski
  • Air Cleaner Arrangements; Serviceable Filter Cartridge; and, Methods
    Publication number: 20080250763
    Abstract: Principles, techniques and configurations applicable in air cleaner arrangements and filter cartridges therefore, are described. In general the filter cartridge includes an axial pivot arrangement, for pivoting the filter cartridge in place, when mounted in an air cleaner for use. The air cleaner preferably includes a base pivot, for engagement with the pivot projection on the filter cartridge. Methods of assembly, installation and use are described.
    Type: Application
    Filed: June 16, 2005
    Publication date: October 16, 2008
    Applicant: Donaldson Company, Inc.
    Inventors: Robert Widerski, Randall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Richard Lawrence Suydam