Patents by Inventor David Tyms

David Tyms 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: 9638481
    Abstract: Semi-automatic features can be eliminated from a weapon that originally had a bolt carrier that was reciprocated by a gas tube communicating with a barrel. After eliminating the gas tube, a carriage and pushing member can be taken from a kit and installed on the weapon. The carriage is reciprocatably mounted at the barrel forward of the bolt carrier, with the pushing member connecting between the carriage and the bolt carrier. The carriage can be manually reciprocated to reciprocate the push member and the bolt carrier.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: May 2, 2017
    Inventors: Frank Marano, David Tyms