Patents by Inventor Allan Roush

Allan Roush 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).

  • Combination particulate and acid-neutralizing filter
    Patent number: 7410572
    Abstract: The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. Preferably, the particulate filter and the acid-neutralizing filter are positioned within a housing. A conduit having a pressure reduction section is arranged to create a pressure differential across the acid-neutralizing filter such that a portion of the fluid to be filtered by the filter apparatus passes through the acid-neutralizing filter.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: August 12, 2008
    Assignees: Baldwin Filters, Inc., D-A Lubricant Company, Inc.
    Inventors: John H. Beard, Allan Roush
  • Combination particulate and acid-neutralizing filter
    Publication number: 20070034559
    Abstract: The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. Preferably, the particulate filter and the acid-neutralizing filter are positioned within a housing. A conduit having a pressure reduction section is arranged to create a pressure differential across the acid-neutralizing filter such that a portion of the fluid to be filtered by the filter apparatus passes through the acid-neutralizing filter.
    Type: Application
    Filed: October 23, 2006
    Publication date: February 15, 2007
    Applicants: Baldwin Filters, Inc., D-A Lubricant Company, Inc.
    Inventors: John Beard, Allan Roush
  • Combination particulate and acid-neutralizing filter
    Patent number: 7132047
    Abstract: The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. Preferably, the particulate filter and the acid-neutralizing filter are positioned within a housing. A conduit having a pressure reduction section is arranged to create a pressure differential across the acid-neutralizing filter such that a portion of the fluid to be filtered by the filter apparatus passes through the acid-neutralizing filter.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: November 7, 2006
    Assignees: Baldwin Filters, Inc., D-A Lubricant Company, Inc.
    Inventors: John H. Beard, Allan Roush
  • Combination particulate and acid-neutralizing filter
    Publication number: 20060000760
    Abstract: The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. Preferably, the particulate filter and the acid-neutralizing filter are positioned within a housing. A conduit having a pressure reduction section is arranged to create a pressure differential across the acid-neutralizing filter such that a portion of the fluid to be filtered by the filter apparatus passes through the acid-neutralizing filter.
    Type: Application
    Filed: August 31, 2005
    Publication date: January 5, 2006
    Applicant: Baldwin Filters, Inc.
    Inventors: John Beard, Allan Roush
  • Combination particulate and acid-neutralizing filter
    Patent number: 6969461
    Abstract: The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. Preferably, the particulate filter and the acid-neutralizing filter are positioned within a housing. A conduit having a pressure reduction section is arranged to create a pressure differential across the acid-neutralizing filter such that a portion of the fluid to be filtered by the filter apparatus passes through the acid-neutralizing filter.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: November 29, 2005
    Assignees: Baldwin Filters, Inc., D-A Lubricant Company, Inc.
    Inventors: John H. Beard, Allan Roush
  • Acid neutralizing filter canister
    Publication number: 20050247615
    Abstract: An acid neutralizing filter construction is provided that may be used as a bypass type filter. The filter includes a canister having an open end. An end plate is secured to the canister at the open end and includes an inlet port and an outlet port to provide for fluid communication with a mounting adaptor of an oil circuit. A reactor housing is arranged inside the canister and comprises a bowl and a lid. The reactor housing defines an entrance port and an exit port. An acid neutralizing bed of acid neutralizing particles is deposited in the reactor housing. The acid neutralizing particles comprises primarily of calcium carbonate compound or other suitable medium which may be provided by crushed limestone. A particulate filter is also arranged in the reactor housing between the acid neutralizing bed and the exit port.
    Type: Application
    Filed: July 18, 2005
    Publication date: November 10, 2005
    Inventors: Steven Merritt, Gene Brown, Allan Roush, John Beard
  • Acid neutralizing filter canister
    Patent number: 6919023
    Abstract: An acid neutralizing filter construction is provided that may be used as a bypass type filter. The filter includes a canister having an open end. An end plate is secured to the canister at the open end and includes an inlet port and an outlet port to provide for fluid communication with a mounting adaptor of an oil circuit. A reactor housing is arranged inside the canister and comprises a bowl and a lid. The reactor housing defines an entrance port and an exit port. An acid neutralizing bed of acid neutralizing particles is deposited in the reactor housing. The acid neutralizing particles comprises primarily of calcium carbonate compound or other suitable medium which may be provided by crushed limestone. A particulate filter is also arranged in the reactor housing between the acid neutralizing bed and the exit port.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: July 19, 2005
    Assignee: Baldwin Filters, Inc.
    Inventors: Steven J. Merritt, Gene W. Brown, Allan Roush, John H. Beard
  • Acid-neutralizing filter
    Patent number: 6537453
    Abstract: The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. The particulate filter and the acid-neutralizing filter may be positioned within separate housings or they may be positioned within a common housing. The acid-neutralizing filter contains an acid-neutralizing compound such as crushed limestone, calcium carbonate or magnesium carbonate.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: March 25, 2003
    Assignee: Baldwin Filters, Inc.
    Inventors: John H. Beard, Allan Roush
  • Full flow particulate and acid-neutralizing filter
    Publication number: 20020185454
    Abstract: The present invention provides a filter apparatus for use in removing acids and particulate impurities contained in a fluid such as the oil contained in the oil circulation system for a diesel engine. In one embodiment, the filter apparatus includes an outer canister, an inner shell, and a particulate filter and an acid-neutralizing compound contained within the inner shell.
    Type: Application
    Filed: May 17, 2001
    Publication date: December 12, 2002
    Inventors: John H. Beard, Allan Roush
  • Acid-neutralizing filter
    Publication number: 20020185453
    Abstract: The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. The particulate filter and the acid-neutralizing filter may be positioned within separate housings or they may be positioned within a common housing. The acid-neutralizing filter contains an acid-neutralizing compound such as crushed limestone, calcium carbonate or magnesium carbonate.
    Type: Application
    Filed: May 17, 2001
    Publication date: December 12, 2002
    Inventors: John H. Beard, Allan Roush
  • Combination particulate and acid-neutralizing filter
    Publication number: 20020043495
    Abstract: The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. Preferably, the particulate filter and the acid-neutralizing filter are positioned within a housing. A conduit having a pressure reduction section is arranged to create a pressure differential across the acid-neutralizing filter such that a portion of the fluid to be filtered by the filter apparatus passes through the acid-neutralizing filter.
    Type: Application
    Filed: May 17, 2001
    Publication date: April 18, 2002
    Inventors: John H. Beard, Allan Roush