Patents by Inventor Nishaj Attassery

Nishaj Attassery 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: 11773990
    Abstract: Embodiments of a multi-port multi-mode valve are provided. The multi-port multi-plane valve includes a housing which defines an internal cavity. The housing further includes a plurality of ports, including two inlet ports and four outlet ports. Each of the plurality of ports is in communication with the internal cavity. A shell body is rotatably disposed within the internal cavity and provides selectable fluid communications between the ports. A seal member is also provided which has a plurality of openings and surrounds the shell body. Six modes of operation are provided by rotation of the shell body.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: October 3, 2023
    Assignee: ROBERTSHAW CONTROLS COMPANY
    Inventors: Michael J. Koch, Nishaj Attassery, Kyle William Svejcar, Eapen Chacko, Daniel Knapper
  • Patent number: 11592116
    Abstract: A multiport valve has a plurality of inlets and outlets with selected positions to selectively direct fluid differently through the valve based on the position of the valve. A cylindrical exterior stemshell rotates internal to a housing to position channels and/or bores to provide the desired flow paths. Some flow paths are channels which extend linearly from one port to another, whether formed into an exterior surface, parallel to an axis of rotation of the stemshell, or pass from an inlet to an outlet in the exterior surface of the stemshell, preferably separated from flow from flow to an internal passage, which is preferably colinear with the axis of rotation, for at least some embodiments.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: February 28, 2023
    Assignee: Robertshaw Controls Company
    Inventors: Kyle Svejcar, Nishaj Attassery, Eapen Chacko
  • Publication number: 20220255164
    Abstract: A fluid manifold for cooling systems has parallel inlets directing flow through a base of a nozzle to an outlet which is preferably parallel to the inlets. The pressure drop from the inlets to the outlet is preferably less than 3 psi and the inlets have inlet portions with check valves connected thereto.
    Type: Application
    Filed: January 14, 2022
    Publication date: August 11, 2022
    Inventors: Shubhada Surve, Nishaj Attassery, Eapen Chacko
  • Publication number: 20220163124
    Abstract: A multiport valve has a plurality of inlets and outlets with selected positions to selectively direct fluid differently through the valve based on the position of the valve. A cylindrical exterior stemshell rotates internal to a housing to position channels and/or bores to provide the desired flow paths. Some flow paths are channels which extend linearly from one port to another, whether formed into an exterior surface, parallel to an axis of rotation of the stemshell, or pass from an inlet to an outlet in the exterior surface of the stemshell, preferably separated from flow from flow to an internal passage, which is preferably colinear with the axis of rotation, for at least some embodiments.
    Type: Application
    Filed: November 11, 2021
    Publication date: May 26, 2022
    Inventors: Kyle Svejcar, Nishaj Attassery, Eapen Chacko
  • Publication number: 20210381607
    Abstract: Embodiments of a multi-port multi-mode valve are provided. The multi-port multi-plane valve includes a housing which defines an internal cavity. The housing further includes a plurality of ports, including two inlet ports and four outlet ports. Each of the plurality of ports is in communication with the internal cavity. A shell body is rotatably disposed within the internal cavity and provides selectable fluid communications between the ports. A seal member is also provided which has a plurality of openings and surrounds the shell body. Six modes of operation are provided by rotation of the shell body.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 9, 2021
    Inventors: Michael J. Koch, Nishaj Attassery, Kyle William Svejcar, Eapen Chacko, Daniel Knapper
  • Patent number: 7708147
    Abstract: A fluid filter assembly comprises a filter and a case. The case defines a filter chamber receiving the filter. The case comprises a notch extending into the filter chamber and engaging the filter.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: May 4, 2010
    Assignee: Purolator Filters NA LLC
    Inventors: Nishaj Attassery, Bruce Murray Roxburgh, Lorne Burry
  • Patent number: 7481862
    Abstract: A cylindrical shaped pleated media includes adhesive beads arranged on a periphery to bridge pleats and provide structural support for the pleated media. The pleated media is used in a fluid filter.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: January 27, 2009
    Assignee: Purolator Filters NA LLC
    Inventor: Nishaj Attassery
  • Publication number: 20070163946
    Abstract: A filter uses a reversible element guide. The filter includes a housing that provides a cavity. A filter element assembly is arranged in the cavity and includes an end cap supporting the filter media. An element guide is arranged between the end cap and the housing. The element guide includes a first set of tabs engaging the end cap and a second set of tabs engaging the housing. The number of tabs in each set are equal to one another so that they will exert the same biasing force when installed in either orientation. The tabs extend away from a base at a height that is the same on each side of the base.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 19, 2007
    Inventors: Nishaj Attassery, L. Cline
  • Publication number: 20070080105
    Abstract: An oil filter includes an integrated bypass and anti-drain back valve. The valve is part of a valve assembly that includes a rigid support. The valve is constructed from a flexible material and includes unitary first and second legs that provide the bypass and anti-drain back features. The valve assembly is arranged between a tapping plate and a filter assembly.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 12, 2007
    Inventor: Nishaj Attassery
  • Publication number: 20060277880
    Abstract: A cylindrical shaped pleated media includes adhesive beads arranged on a periphery to bridge pleats and provide structural support for the pleated media. The pleated media is used in a fluid filter.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 14, 2006
    Inventor: Nishaj Attassery
  • Publication number: 20060102548
    Abstract: A fluid filter assembly comprises a filter and a case. The case defines a filter chamber receiving the filter. The case comprises a notch extending into the filter chamber and engaging the filter.
    Type: Application
    Filed: November 15, 2004
    Publication date: May 18, 2006
    Inventor: Nishaj Attassery