Patents by Inventor Michael A. Boylan

Michael A. Boylan 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: 5238717
    Abstract: An end cap for a filter element comprises first and second concentric components of a thermoplastic material. The first of the components forms a side wall and a base of a peripheral groove of the end cap while the second of the components forms a second side of the peripheral groove. The first and second components are connected by a weld extending around the components in the region of the peripheral groove. The weld may be an ultrasonic weld. This prevents distortion of the components at high temperatures by strengthening the composite while allowing use of lightweight inexpensive components that have smooth sealing surfaces with no injection mould parting lines.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: August 24, 1993
    Assignee: Pall Corporation
    Inventor: Michael A. Boylan