Patents by Inventor Leonard R. Castellano

Leonard R. Castellano 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: 11207629
    Abstract: Filter systems, filters, and methods of managing filter systems are provided. The filter systems utilize large filters that are too large to be manually handled by service personnel. As such, the filter systems and methods utilize filter positioning units for handling the filters during maintenance intervals. Some systems include sensor for remotely monitoring the status of the filters and the information can be used to reverse pulse the filters as well as to indicate the end of the service life of the filters. The filters can be refurbished with new filter media.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: December 28, 2021
    Assignee: Parker-Hannifin Corporation
    Inventors: Thomas B. Green, Jason LaMarr Tate, Leonard R. Castellano, Stephen David Hiner, Ryan Margate Pastrana
  • Publication number: 20190314748
    Abstract: Filter systems, filters, and methods of managing filter systems are provided. The filter systems utilize large filters that are too large to be manually handled by service personnel. As such, the filter systems and methods utilize filter positioning units for handling the filters during maintenance intervals. Some systems include sensor for remotely monitoring the status of the filters and the information can be used to reverse pulse the filters as well as to indicate the end of the service life of the filters. The filters can be refurbished with new filter media.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 17, 2019
    Applicant: Parker-Hannifin Corporation
    Inventors: Thomas B. Green, Jason LaMarr Tate, Leonard R. Castellano, Stephen David Hiner, Ryan Margate Pastrana
  • Patent number: 5628916
    Abstract: A method for filtering edible oils utilizing a backwashable filter assembly. A filter system having at least two filter assemblies may be utilized to remove bleaching clay and/or nickel catalyst from oil being processed for human consumption. The filter assemblies may be connected in a series and tandem manner to provide continuous and uninterrupted filtering of the edible oil. Each filter assembly preferably comprises multiple, substantially cylindrical filter elements having a porous filter medium which may be formed from polyaramid fibers. The filter elements are designed to withstand the elevated temperatures used in edible oil processing and for ease of cleaning during backwashing.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: May 13, 1997
    Assignee: Pall Corporation
    Inventors: Donald B. Stevens, Leonard R. Castellano, Thomas C. Gsell, Jeffrey M. Seibert, Barry J. Weissman