Patents by Inventor W.C. Litzinger

W.C. Litzinger 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).

  • IMPACT-DRIVABLE SCREW WITH ELASTOMER SEAL AND TIP HIGHLIGHT
    Publication number: 20130336742
    Abstract: An asymmetric thread impact drivable screw and clip for use with a power impact device for penetrating wood fibers while minimizing cut fibers. The screw includes an impact head and a conical shaped tip having a ballistic insertion angle at the ends of a shank. The shank defines asymmetrical threads with an insertion flank having a long side at a slide angle peaking at a crest supported by a catch flank positioned at a grip angle. Varying tool accepting recess are taught for the head along with multiple thread sections. A mushroom compaction thread section is also taught.
    Type: Application
    Filed: August 22, 2013
    Publication date: December 19, 2013
    Inventor: W.C. Litzinger
  • Impact-drivable screw with elastomer seal and tip highlight
    Publication number: 20110305540
    Abstract: An asymmetric thread impact drivable screw and clip for use with a power impact device for penetrating wood fibers while minimizing cut fibers. The screw includes an impact head and a conical shaped tip having a ballistic insertion angle at the ends of a shank. The shank defines asymmetrical threads with an insertion flank having a long side at a slide angle peaking at a crest supported by a catch flank positioned at a grip angle. Varying tool accepting recess are taught for the head along with multiple thread sections. A mushroom compaction thread section is also taught.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 15, 2011
    Inventor: W.C. Litzinger
  • Mushroom-compaction and asymmetric-thread impact-drivable screw
    Publication number: 20070258794
    Abstract: An asymmetric thread impact drivable screw and clip for use with a power impact device for penetrating wood fibers while minimizing cut fibers. The screw includes an impact head and a conical shaped tip having a ballistic insertion angle at the ends of a shank. The shank defines asymmetrical threads with an insertion flank having a long side at a slide angle peaking at a crest supported by a catch flank positioned at a grip angle. Varying tool accepting recess are taught for the head along with multiple thread sections. A mushroom compaction thread section is also taught.
    Type: Application
    Filed: March 20, 2007
    Publication date: November 8, 2007
    Inventor: W.C. Litzinger