Patents by Inventor David Ofori-Amoah

David Ofori-Amoah 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).

  • Patent number: 9511314
    Abstract: A filter element disclosed herein includes a center tube defining a central reservoir and including an interior sidewall. The filter element further includes an end plate and a pocket defining a port extending from the end plate into the central reservoir. The pocket includes an inner wall, an outer wall, and a plurality of projections extending from the outer wall of the pocket toward the interior sidewall of the center tube.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: December 6, 2016
    Assignees: Caterpillar Inc., Donaldson Company, Inc., Advanced Filtration Systems, Inc.
    Inventors: Mark T. Allott, David Ofori-Amoah, Christopher J. Salvador, Randall W. Heibenthal, Dennis M. Deedrich, David B. Harder, John R. Hacker, Richard J. Eisenmenger
  • Publication number: 20150060344
    Abstract: A filter assembly with a replaceable filter element and a reusable filter housing, which incorporates a locking mechanism to ensure that the filter system will not be operated without a filter element installed.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 5, 2015
    Applicant: CATERPILLAR INC.
    Inventors: Mark T. Allott, David Ofori-Amoah
  • Publication number: 20130313183
    Abstract: A filter element disclosed herein includes a center tube defining a central reservoir and including an interior sidewall. The filter element further includes an end plate and a pocket defining a port extending from the end plate into the central reservoir. The pocket includes an inner wall, an outer wall, and a plurality of projections extending from the outer wall of the pocket toward the interior sidewall of the center tube.
    Type: Application
    Filed: July 29, 2013
    Publication date: November 28, 2013
    Applicants: CATERPILLAR INC., DONALDSON COMPANY, INC., ADVANCED FILTRATION SYSTEMS, INC.
    Inventors: Mark T. Allott, David Ofori-Amoah, Christopher J. Salvador, Randall W. Heibenthal, Dennis M. Deedrich, David B. Harder, John R. Hacker, Richard J. Eisenmenger
  • Patent number: 8535529
    Abstract: A filter assembly with a replaceable filter element and a reusable filter housing, which incorporates a locking mechanism to ensure that the filter system will not be operated without a filter element installed.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: September 17, 2013
    Assignee: Caterpillar Inc.
    Inventors: Mark T. Allott, David Ofori-Amoah
  • Patent number: 8501003
    Abstract: A filter element disclosed herein includes a center tube defining a central reservoir and including an interior sidewall. The filter element further includes an end plate and a pocket defining a port extending from the end plate into the central reservoir. The pocket includes an inner wall, an outer wall, and a plurality of projections extending from the outer wall of the pocket toward the interior sidewall of the center tube.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: August 6, 2013
    Assignee: Caterpillar Inc.
    Inventors: Mark T. Allott, David Ofori-Amoah, Christopher J. Salvador, Randall W. Heibenthal, Dennis M. Deedrich, David B. Harder, John R. Hacker, Richard J. Eisenmenger
  • Patent number: 8460545
    Abstract: A filter assembly with a replaceable filter element and a reusable filter housing, which incorporates a locking mechanism to ensure that the filter system will not be operated without a filter element installed.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: June 11, 2013
    Assignee: Caterpillar Inc.
    Inventors: Mark T. Allott, David Ofori-Amoah
  • Patent number: 8157997
    Abstract: A canister filter system includes a base, a canister attachable to the base, and positioned inside the canister a filter element having filter media. A drain engages and forms a seal with the filter element in a closed position. In an open position, the drain allows fluid to be removed from the canister. Because the drain is engaged to and forms a seal with the filter element in the closed position, the drain cannot be closed unless a filter element is present inside the canister. This prevents accidental or intentional use of the filter system without a filter element in place.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: April 17, 2012
    Assignee: Caterpillar Inc.
    Inventors: Mark T. Allott, David Ofori-Amoah
  • Publication number: 20120000841
    Abstract: A filter assembly with a replaceable filter element and a reusable filter housing, which incorporates a locking mechanism to ensure that the filter system will not be operated without a filter element installed.
    Type: Application
    Filed: September 16, 2011
    Publication date: January 5, 2012
    Inventors: Mark T. Allott, David Ofori-Amoah
  • Publication number: 20120000056
    Abstract: A filter assembly with a replaceable filter element and a reusable filter housing, which incorporates a locking mechanism to ensure that the filter system will not be operated without a filter element installed.
    Type: Application
    Filed: September 16, 2011
    Publication date: January 5, 2012
    Inventors: Mark T. Allott, David Ofori-Amoah
  • Publication number: 20110073537
    Abstract: A filter element disclosed herein includes a center tube defining a central reservoir and including an interior sidewall. The filter element further includes an end plate and a pocket defining a port extending from the end plate into the central reservoir. The pocket includes an inner wall, an outer wall, and a plurality of projections extending from the outer wall of the pocket toward the interior sidewall of the center tube.
    Type: Application
    Filed: October 1, 2010
    Publication date: March 31, 2011
    Applicants: CATERPILLAR, INC., ADVANCED FILTRATION SYSTEMS, INC., DONALDSON COMPANY, INC.
    Inventors: Mark T. Allott, David Ofori-Amoah, Christopher J. Salvador, Randall W. Heibenthal, Dennis M. Deedrich, David B. Harder, John R. Hacker, Richard J. Eisenmenger
  • Publication number: 20090101595
    Abstract: A canister filter system includes a base, a canister attachable to the base, and positioned inside the canister a filter element having filter media. A drain engages and forms a seal with the filter element in a closed position. In an open position, the drain allows fluid to be removed from the canister. Because the drain is engaged to and forms a seal with the filter element in the closed position, the drain cannot be closed unless a filter element is present inside the canister. This prevents accidental or intentional use of the filter system without a filter element in place.
    Type: Application
    Filed: October 17, 2007
    Publication date: April 23, 2009
    Inventors: Mark T. Allott, David Ofori-Amoah
  • Publication number: 20090091167
    Abstract: A seating system for a child includes a base. A formed seat is arranged so as to communicate with and selectively rotate about the base. A retention apparatus includes a first handle and the retention apparatus secures the formed seat to the base. A single actuation and substantially continuous movement of the first handle causes the formed seat to move around the base with respect to at least two different axes.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Applicant: THINK/THING
    Inventors: Hemant Jha, David Ofori-Amoah