Patents by Inventor David H. Cummings, Jr.

David H. Cummings, Jr. 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).

  • Ball screw seal
    Patent number: 9388890
    Abstract: A ball screw seal assembly which includes at least one energizer and a seal body, the ball screw seal assembly being configured for being positioned in a housing groove, the seal body including at least one outer diameter lip and two inner diameter lips, the at least one outer diameter lip being configured for contacting and sealing against the housing groove, the inner diameter lips being configured for wiping or scraping an outer surface of a threaded rod including a plurality of threads, the inner diameter lips being wipers or scrapers and being spaced apart from one another, the at least one energizer being configured for energizing and thereby biasing each of the inner diameter lips radially inwardly.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: July 12, 2016
    Assignee: Trelleborg Sealing Solutions US, Inc.
    Inventors: Ronald G. Garrett, David H. Cummings, Jr., Larry J. Castleman
  • BALL SCREW SEAL
    Publication number: 20140190287
    Abstract: a ball screw seal assembly which includes at least one energizer and a seal body, the ball screw seal assembly being configured for being positioned in a housing groove, the seal body including at least one outer diameter lip and two inner diameter lips, the at least one outer diameter lip being configured for contacting and optionally sealing against the housing groove, the inner diameter lips being configured for wiping or scraping an outer surface of a threaded rod including a plurality of threads, the inner diameter lips being wipers or scrapers and being spaced apart from one another, the at least one energizer being configured for energizing and thereby biasing each of the inner diameter lips radially inwardly.
    Type: Application
    Filed: January 3, 2014
    Publication date: July 10, 2014
    Applicant: TRELLEBORG SEALING SOLUTIONS US, INC.
    Inventors: Ronald G. Garrett, David H. Cummings, Jr., Larry J. Castleman