Patents by Inventor David M Schardt

David M Schardt 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).

  • Publication number: 20130253823
    Abstract: The International Address System identifies a location with a combination of 10 alpha/numeric digits and does not need the input of the numeral zero or cardinal directions (i.e., north, south, east, west) to determine the location with a minimum accuracy of 129 square feet. The system utilizes a radix greater than 10 to improve accuracy without adding digits to accommodate existing displays. Such a system may be employed in hardware, software, or both, of a navigation system.
    Type: Application
    Filed: May 16, 2013
    Publication date: September 26, 2013
    Inventor: David M. Schardt
  • Publication number: 20110137555
    Abstract: The International Address System identifies a location with a combination of 10 alphanumeric digits and does not need the input of the numeral zero or cardinal directions (N, S, E, W) to determine the location with 129 square feet of accuracy or less.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 9, 2011
    Inventor: David M Schardt
  • Publication number: 20110072864
    Abstract: An assembly that includes solid blocking placed between the interior door panel and the key cylinder of a vehicle that restricts the cylinder from being turned without the appropriate key when the cylinder is pushed into the cavity of the door.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventor: David M. Schardt
  • Patent number: 7735231
    Abstract: This Chalk Line End Fastener, is a hook similar in size to the conventional hooks but is cylindrical and narrower, coming to a sharp point. This pointed hook can still be used in the prior art manner, but more effectively can be pushed into most surfaces without the use of additional tools, fasteners, or a helper to hold the end of the line securely in place. The design of the front of the body of this invention allows for maximization of surface area, which eases any pressure on the user's fingers as they push the point into a material to secure the chalk line. The rear of the body is designed to allow the user to lift straight up on the chalk line and easily disengage the point. There is also a lip at the back of the body which allows the user to pry the point straight out.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: June 15, 2010
    Inventor: David M Schardt
  • Publication number: 20100115782
    Abstract: This Chalk Line End Fastener, is a hook similar in size to the conventional hooks but is cylindrical and narrower, coming to a sharp point. This pointed hook can still be used in the prior art manner, but more effectively can be pushed into most surfaces without the use of additional tools, fasteners, or a helper to hold the end of the line securely in place. The design of the front of the body of this invention allows for maximization of surface area, which eases any pressure on the user's fingers as they push the point into a material to secure the chalk line. The rear of the body is designed to allow the user to lift straight up on the chalk line and easily disengage the point. There is also a lip at the back of the body which allows the user to pry the point straight out.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 13, 2010
    Inventor: David M. Schardt