Patents by Inventor Yehya A. Elsayed

Yehya A. Elsayed 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).

  • Enclosure ventilation filter and assembly method
    Patent number: 8979811
    Abstract: A filter assembly for an enclosure, particularly for an ostomy bag, is described having an enclosure side, a first layer which is gas permeable, and an adsorbent layer comprising adsorbent particles dispersed in a fine fiber web. The enclosure side of the filter assembly includes an adhesive zone in which adhesive is present having an outer adhesive perimeter and a weld area surrounding at least a portion of the adhesive zone, where the filter assembly is heat-sealable to the enclosure at the weld area. A method of assembly is also described.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: March 17, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Lloyd G. Keleny, Veli E. Kalayci, Michael J. Hebert, Yehya A. Elsayed, David W. Mulder, Andrew J. Dallas
  • CUSTOM WATER ADSORPTION MATERIAL
    Publication number: 20110315922
    Abstract: The technology disclosed herein is directed to controlling humidity levels, such as the humidity level in an enclosed environment. The water isotherm of the adsorbent material is customized through the modification of the surface chemistry of the adsorbent. By modifying the surface chemistry of the adsorbent in various ways and to varying degrees, it is possible to customize the adsorbent properties to a range of different humidity levels. Such modification can enhance the adsorbing capacity and efficiency of the adsorbent, especially with regard to low molecular weight water-soluble compounds.
    Type: Application
    Filed: November 4, 2009
    Publication date: December 29, 2011
    Applicant: DONALDSON COMPANY INC.
    Inventors: Yehya A. Elsayed, Andrew J. Dallas, Jon D. Joriman, Dustin Zastera
  • LIQUID FILTRATION MEDIA, FILTER ELEMENTS AND METHODS
    Publication number: 20110198280
    Abstract: A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber (such as glass) and a binder fiber (such as bicomponent) that combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 18, 2011
    Applicant: DONALDSON COMPANY, INC.
    Inventors: Derek O. Jones, Keh B. Dema, Stephen M. Larsen, Mike J. Madsen, Andrew J. Dallas, Yehya A. Elsayed, Chuanfang Yang
  • ENCLOSURE VENTILATION FILTER AND ASSEMBLY METHOD
    Publication number: 20090247970
    Abstract: A filter assembly for an enclosure, particularly for an ostomy bag, is described having an enclosure side, a first layer which is gas permeable, and an adsorbent layer comprising adsorbent particles dispersed in a fine fiber web. The enclosure side of the filter assembly includes an adhesive zone in which adhesive is present having an outer adhesive perimeter and a weld area surrounding at least a portion of the adhesive zone, where the filter assembly is heat-sealable to the enclosure at the weld area. A method of assembly is also described.
    Type: Application
    Filed: March 31, 2009
    Publication date: October 1, 2009
    Applicant: Donaldson Company, Inc.
    Inventors: Lloyd G. Keleny, Veli E. Kalayci, Michael J. Hebert, Yehya A. Elsayed, David W. Mulder, Andrew J. Dallas