Patents by Inventor Richard E. Main

Richard E. Main 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: 8677644
    Abstract: An assault weapon locking wedge gage tool assembly includes a main body portion; at least one limit stop plate assembly connected to the main body portion; an interchangeable locking wedge stop connected to the limit stop plate assembly and configured to engage a locking wedge of a weapon; a moveable gage ball plunger positioned in the limit stop plate assembly and contacting the locking wedge; at least one position indicator operatively connected to the moveable gage ball plunger, wherein the position indicator displays a relative position of the locking wedge with respect to a known position of the locking wedge stop. The assembly includes an interchangeable ring configured around the main body portion.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: March 25, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard E. Main
  • Patent number: 7431501
    Abstract: An electrostatic discharge (ESD) protective bag assembly includes a tote bag and an envelope made from ESD protective material positioned at least partially within the tote bag. The envelope may be defined by two sheets of ESD protective material joined along at least two opposing sides thereof to form join regions. At least one layer of a reinforcing material, such as a fibrous web, is coupled to a portion of each of the join regions. The tote bag and envelope may be coupled to one another by stitches that pass through the reinforcing material.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: October 7, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard E. Main
  • Patent number: 5727991
    Abstract: An apparatus and method for sharpening machine tool cutter blades in situ is disclosed. A connector adjustably connects a powered sharpening device to the apparatus. Further adjustment of the apparatus relative to the blades is provided by a body member mounting adjustable arms. One of the arms engages the back of the blade being sharpened, thereby providing a reliable and true reference. A second embodiment sharpens rotary saw blades while a third embodiment sharpens router and shaper bits.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: March 17, 1998
    Inventor: Richard E. Main