Patents by Inventor Charles W. Andrews

Charles W. Andrews 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: 11851950
    Abstract: A ladder stabilizer for step ladders and extension ladders. The ladder stabilizer is collapsible for storage. Additionally, the ladder stabilizer includes legs that are adjustable in length and pivotally secured to a rigid lateral support. The rigid lateral support also carries a step plate secured by a hinge to the lateral support. The step plate provides the point of engagement between the ladder stabilizer and a rung of the ladder.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: December 26, 2023
    Assignee: Ladder Armor LLC
    Inventors: Stephen D. Andrews, Robert S. Buchanan, Jr., Charles W. Andrews, Shea K. Wesson
  • Publication number: 20230023715
    Abstract: A ladder stabilizer for step ladders and extension ladders. The ladder stabilizer is collapsible for storage. Additionally, the ladder stabilizer includes legs that are adjustable in length and pivotally secured to a rigid lateral support. The rigid lateral support also carries a step plate secured by a hinge to the lateral support. The step plate provides the point of engagement between the ladder stabilizer and a rung of the ladder.
    Type: Application
    Filed: July 12, 2022
    Publication date: January 26, 2023
    Inventors: Stephen D. Andrews, Robert S. Buchanan, JR., Charles W. Andrews, Shea K. Wesson
  • Patent number: 8087538
    Abstract: An apparatus in an example implementation includes a vessel that includes an inner wall and an outer wall. The outer wall includes a first set of grooves configured on an interior portion of a bottom of the outer wall. The inner wall includes a second set of grooves configured on an exterior of the inner wall. The first set of grooves are configured to interface with the second set of grooves to secure the inner wall and the outer wall together. In more specific embodiments, the first set of grooves and the second set of grooves are provided as ascending steps such that a rotational force applied to one of the walls operates to engage subsequent steps in each of the first and second sets of grooves. The walls are configured such that a rotational force creates a force being applied to the lip to secure the walls together.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: January 3, 2012
    Assignee: Thermoserv Ltd.
    Inventors: Charles W. Andrews, Thomas G. Morris, II, Jack R. Rigby
  • Publication number: 20110056963
    Abstract: An apparatus in an example implementation includes a vessel that includes an inner wall and an outer wall. The outer wall includes a first set of grooves configured on an interior portion of a bottom of the outer wall. The inner wall includes a second set of grooves configured on an exterior of the inner wall. The first set of grooves are configured to interface with the second set of grooves to secure the inner wall and the outer wall together. In more specific embodiments, the first set of grooves and the second set of grooves are provided as ascending steps such that a rotational force applied to one of the walls operates to engage subsequent steps in each of the first and second sets of grooves. The walls are configured such that a rotational force creates a force being applied to the lip to secure the walls together.
    Type: Application
    Filed: September 4, 2009
    Publication date: March 10, 2011
    Inventors: Charles W. Andrews, Thomas G. Morris II, Jack R. Rigby
  • Patent number: D575907
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: August 26, 2008
    Assignee: Doskocil Manufacturing Company, Inc.
    Inventors: Brian Roderman, Justin Pendleton, John Ring, Charles W. Andrews