Patents by Inventor Zdzislaw Chajec

Zdzislaw Chajec 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).

  • Publication number: 20250177893
    Abstract: Various example embodiments relate to a filtration system. The filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing comprises a key slot disposed on the first housing end and a housing key element protruding from the first housing end toward the second housing end. The filtration system further comprises a filter element positioned within the central compartment of the housing. The filter element has a first filter end and a second filter end. The filter element includes filter media and an endplate disposed on the first filter end. The endplate includes a central endplate opening, a key element configured for engagement with the key slot, and an installation guidance element formed along the central endplate opening. The installation guidance element is configured for engagement with the housing key element.
    Type: Application
    Filed: February 7, 2025
    Publication date: June 5, 2025
    Applicants: CUMMINS FILTRATION IP, INC., DAVCO Technology, LLC
    Inventors: Manikandan Annamalai, Mark Straussberger, Jayant Singh, Gregory D. Shope, Zdzislaw Chajec, Robert Polkus, David Hipwood
  • Publication number: 20240399274
    Abstract: A filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing includes an alignment tab disposed on the second housing end. The alignment tab protrudes from the second housing end towards the first housing end. A filter element is positioned within the housing. The filter element includes a first endcap, a second endcap, and filter media positioned between and extending axially between the first endcap and the second endcap. The filter media defines a central opening extending axially therein. An alignment notch is disposed on the second endcap, the alignment notch protruding from the second endcap toward the first endcap.
    Type: Application
    Filed: August 9, 2024
    Publication date: December 5, 2024
    Applicants: CUMMINS FILTRATION IP, INC., Davco Technology, LLC
    Inventors: Joshua Luther Young, Dean Olson, Carey A. Curt, Philip S. Hall, Zdzislaw Chajec
  • Patent number: 12064718
    Abstract: A filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing includes an alignment tab disposed on the second housing end. The alignment tab protrudes from the second housing end towards the first housing end. A filter element is positioned within the housing. The filter element includes a first endcap, a second endcap, and filter media positioned between and extending axially between the first endcap and the second endcap. The filter media defines a central opening extending axially therein. An alignment notch is disposed on the second endcap, the alignment notch protruding from the second endcap toward the first endcap.
    Type: Grant
    Filed: March 28, 2023
    Date of Patent: August 20, 2024
    Assignees: Cummins Filtration IP, Inc., Davco Technology, LLC
    Inventors: Joshua Luther Young, Dean Olson, Carey A. Curt, Philip S. Hall, Zdzislaw Chajec
  • Publication number: 20230233960
    Abstract: A filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing includes an alignment tab disposed on the second housing end. The alignment tab protrudes from the second housing end towards the first housing end. A filter element is positioned within the housing. The filter element includes a first endcap, a second endcap, and filter media positioned between and extending axially between the first endcap and the second endcap. The filter media defines a central opening extending axially therein. An alignment notch is disposed on the second endcap, the alignment notch protruding from the second endcap toward the first endcap.
    Type: Application
    Filed: March 28, 2023
    Publication date: July 27, 2023
    Applicants: CUMMINS FILTRATION IP, INC., Davco Technology, LLC
    Inventors: Joshua Luther Young, Dean Olson, Carey A. Curt, Philip S. Hall, Zdzislaw Chajec
  • Patent number: 11628385
    Abstract: A filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing includes an alignment tab disposed on the second housing end. The alignment tab protrudes from the second housing end towards the first housing end. A filter element is positioned within the housing. The filter element includes a first endcap, a second endcap, and filter media positioned between and extending axially between the first endcap and the second endcap. The filter media defines a central opening extending axially therein. An alignment notch is disposed on the second endcap, the alignment notch protruding from the second endcap toward the first endcap.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: April 18, 2023
    Assignees: CUMMINS FILTRATION IP, INC., DAVCO TECHNOLOGY, LLC
    Inventors: Joshua Luther Young, Dean Olson, Carey A. Curt, Philip S. Hall, Zdzislaw Chajec
  • Publication number: 20230050414
    Abstract: Various example embodiments relate to a filtration system. The filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing comprises a key slot disposed on the first housing end and a housing key element protruding from the first housing end toward the second housing end. The filtration system further comprises a filter element positioned within the central compartment of the housing. The filter element has a first filter end and a second filter end. The filter element includes filter media and an endplate disposed on the first filter end. The endplate includes a central endplate opening, a key element configured for engagement with the key slot, and an installation guidance element formed along the central endplate opening. The installation guidance element is configured for engagement with the housing key element.
    Type: Application
    Filed: October 31, 2022
    Publication date: February 16, 2023
    Applicants: CUMMINS FILTRATION IP, INC., DAVCO Technology, LLC
    Inventors: Manikandan Annamalai, Mark Straussberger, Jayant Singh, Gregory D. Shope, Zdzislaw Chajec, Robert Polkus, David Hipwood
  • Patent number: 11504660
    Abstract: Various example embodiments relate to a filtration system. The filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing comprises a key slot disposed on the first housing end and a housing key element protruding from the first housing end toward the second housing end. The filtration system further comprises a filter element positioned within the central compartment of the housing. The filter element has a first filter end and a second filter end. The filter element includes filter media and an endplate disposed on the first filter end. The endplate includes a central endplate opening, a key element configured for engagement with the key slot, and an installation guidance element formed along the central endplate opening. The installation guidance element is configured for engagement with the housing key element.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: November 22, 2022
    Assignees: CUMMINS FILTRATION IP, INC., DAVCO Technology, LLC
    Inventors: Manikandan Annamalai, Mark Straussberger, Jayant Singh, Gregory D. Shope, Zdzislaw Chajec, Robert Polkus, David Hipwood
  • Patent number: 11504659
    Abstract: Various example embodiments relate to a filtration system. The filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing comprises a key slot disposed on the first housing end and a housing key element protruding from the first housing end toward the second housing end. The filtration system further comprises a filter element positioned within the central compartment of the housing. The filter element has a first filter end and a second filter end. The filter element includes filter media and an endplate disposed on the first filter end. The endplate includes a central endplate opening, a key element configured for engagement with the key slot, and an installation guidance element formed along the central endplate opening. The installation guidance element is configured for engagement with the housing key element.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: November 22, 2022
    Assignees: CUMMINS FILTRATION IP, INC., DAVCO TECHNOLOGY, LLC
    Inventors: Manikandan Annamalai, Mark Straussberger, Jayant Singh, Gregory D. Shope, Zdzislaw Chajec, Robert Polkus, David Hipwood
  • Publication number: 20210291089
    Abstract: Various example embodiments relate to a filtration system. The filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing comprises a key slot disposed on the first housing end and a housing key element protruding from the first housing end toward the second housing end. The filtration system further comprises a filter element positioned within the central compartment of the housing. The filter element has a first filter end and a second filter end. The filter element includes filter media and an endplate disposed on the first filter end. The endplate includes a central endplate opening, a key element configured for engagement with the key slot, and an installation guidance element formed along the central endplate opening. The installation guidance element is configured for engagement with the housing key element.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Applicants: CUMMINS FILTRATION IP, INC., DAVCO Technology, LLC
    Inventors: Manikandan Annamalai, Mark Straussberger, Jayant Singh, Gregory D. Shope, Zdzislaw Chajec, Robert Polkus, David Hipwood
  • Publication number: 20210205740
    Abstract: A filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing includes an alignment tab disposed on the second housing end. The alignment tab protrudes from the second housing end towards the first housing end. A filter element is positioned within the housing. The filter element includes a first endcap, a second endcap, and filter media positioned between and extending axially between the first endcap and the second endcap. The filter media defines a central opening extending axially therein. An alignment notch is disposed on the second endcap, the alignment notch protruding from the second endcap toward the first endcap.
    Type: Application
    Filed: July 8, 2019
    Publication date: July 8, 2021
    Applicants: CUMMINS FILTRATION IP, INC., Davco Technology, LLC
    Inventors: Joshua Luther Young, Dean Olson, Carey A. Curt, Philip S. Hall, Zdzislaw Chajec
  • Publication number: 20210138376
    Abstract: Various example embodiments relate to a filtration system. The filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing comprises a key slot disposed on the first housing end and a housing key element protruding from the first housing end toward the second housing end. The filtration system further comprises a filter element positioned within the central compartment of the housing. The filter element has a first filter end and a second filter end. The filter element includes filter media and an endplate disposed on the first filter end. The endplate includes a central endplate opening, a key element configured for engagement with the key slot, and an installation guidance element formed along the central endplate opening. The installation guidance element is configured for engagement with the housing key element.
    Type: Application
    Filed: July 12, 2018
    Publication date: May 13, 2021
    Applicants: CUMMINS FILTRATION IP, INC., DAVCO Technology, LLC
    Inventors: Manikandan Annamalai, Mark Straussberger, Jayant Singh, Gregory D. Shope, Zdzislaw Chajec, Robert Polkus, David Hipwood
  • Patent number: 9586163
    Abstract: A fluid filter assembly for filtering a fluid includes a housing base portion having an axially extending tube, a housing cover that is connected to the housing base portion to define an interior space, a filter element, and an interface structure. The filter element is disposed within the interior space and in engagement with the axially extending tube, the filter element having a filter media, a bottom end cap, a top end cap, and a mounting member defined by the top end cap, the mounting member having an axial wall with a vent passage therethrough and a radial wall that encircles the axial wall. The interface structure is connected to the housing cover and engages the top end cap of the filter element.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 7, 2017
    Assignee: Davco Technology, LLC
    Inventor: Zdzislaw Chajec
  • Publication number: 20140021110
    Abstract: A fluid filter assembly for filtering a fluid includes a housing base portion having an axially extending tube, a housing cover that is connected to the housing base portion to define an interior space, a filter element, and an interface structure. The filter element is disposed within the interior space and in engagement with the axially extending tube, the filter element having a filter media, a bottom end cap, a top end cap, and a mounting member defined by the top end cap, the mounting member having an axial wall with a vent passage therethrough and a radial wall that encircles the axial wall. The interface structure is connected to the housing cover and engages the top end cap of the filter element.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Applicant: DAVCO TECHNOLOGY, LLC
    Inventor: Zdzislaw Chajec
  • Patent number: 8574430
    Abstract: A fluid filter for assembly includes an upright housing having a base portion and a cover to allow viewing of a fluid level. The base portion has a fluid inlet and a fluid outlet. A filter element has a filter media for filtering the fluid, a bottom end cap connected to the fluid outlet, and a top end cap positioned above the bottom end cap. A mounting member is formed on the top end cap, and a vent passage extends through the mounting member for fluid communication between an interior and an exterior of the filter element. An interface structure is connected to cover the upright housing and is removably engageable with the mounting member of the filter element.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: November 5, 2013
    Assignee: Davco Technology, LLC
    Inventor: Zdzislaw Chajec
  • Publication number: 20110062061
    Abstract: A fluid filter for assembly includes an upright housing having a base portion and a cover to allow viewing of a fluid level. The base portion has a fluid inlet and a fluid outlet. A filter element has a filter media for filtering the fluid, a bottom end cap connected to the fluid outlet, and a top end cap positioned above the bottom end cap. A mounting member is formed on the top end cap, and a vent passage extends through mounting member for fluid communication between an interior and an exterior of the filter element. An interface structure is connected to cover of the upright housing and is removably engageable with the mounting member of the filter element.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 17, 2011
    Applicant: DAVCO TECHNOLOGY, LLC
    Inventor: Zdzislaw Chajec
  • Patent number: 7508312
    Abstract: A method and apparatus for determining a fluid level within an enclosed housing. The present invention provides an enclosed housing having a dynamic fluid level contained therein. The apparatus includes an electromagnetic radiation source for directing electromagnetic radiation rays toward the interior of the enclosed housing and an electromagnetic radiation detector for receiving and measuring reflected electromagnetic radiation rays. The electromagnetic radiation detector provides a detector output signal to a controller. The controller interprets the detector output signal to determine whether the fluid level has statically reached a desired level and then generates a controller output signal for indicating that the fluid level has statically reached the desired level. The method includes the steps of generating a logic signal in response to the measured electromagnetic radiation and analyzing the logic signals over a period of time to determine whether a predetermined fluid level has been reached.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: March 24, 2009
    Assignee: Davco Technology, L.L.C.
    Inventor: Zdzislaw Chajec
  • Publication number: 20060191826
    Abstract: A method and apparatus for determining a fluid level within an enclosed housing. The present invention provides an enclosed housing having a dynamic fluid level contained therein. The apparatus includes an electromagnetic radiation source for directing electromagnetic radiation rays toward the interior of the enclosed housing and an electromagnetic radiation detector for receiving and measuring reflected electromagnetic radiation rays. The electromagnetic radiation detector provides a detector output signal to a controller. The controller interprets the detector output signal to determine whether the fluid level has statically reached a desired level and then generates a controller output signal for indicating that the fluid level has statically reached the desired level. The method includes the steps of generating a logic signal in response to the measured electromagnetic radiation and analyzing the logic signals over a period of time to determine whether a predetermined fluid level has been reached.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 31, 2006
    Inventor: Zdzislaw Chajec