Patents by Inventor Dan P. Wilkins

Dan P. Wilkins 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: 6530373
    Abstract: A respirator mask seal and shell are provided according to one embodiment of the invention. The respirator mask seal and shell includes a mask shell having a face opening, a slot for air passage, and at least one attachment portion spaced around the face opening. They also include a movable interface having a hose connector and a contoured opening adapted to fit against the mask shell. The contoured opening is slidable over the slot and is capable of being positioned on the mask shell. The mask seal has a flexible sidewall having distal and proximal ends and includes a rounded outer seal portion located on the distal end of the sidewall, a rounded inner seal portion located between the distal and proximal ends, and a support ring embedded in the sidewall. The inner seal portion is thicker than the outer seal portion and is non-continuous. The support ring includes at least one attachment portion adapted to engage the at least one attachment portion of the mask shell.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: March 11, 2003
    Assignee: Mallinckrodt Inc.
    Inventors: Anthony P. Patron, Michael Sullivan, Gary L. Hansen, Bradley J. Bonnette, John W. Lai, Christine G. Kronich, Steven S. Bordewick, Clifford T. Jue, Dan P. Wilkins, Jeff C. Weintraub
  • Patent number: D1055651
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: December 31, 2024
    Assignee: iFixit
    Inventors: Brett Laurence Hartt, Alyssa Kinoshita, Dan P. Wilkins