Patents by Inventor David W. Ewald

David W. Ewald 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: 20200100474
    Abstract: A modular habitat apparatus for attaching and anchoring aquatic life hiding units thereto comprises a weighted apparatus comprising a mat or platform for submersion in waterways wherein aquatic life hiding units may be attached thereto. The present invention further comprises a modular system of one or more habitat apparatuses having aquatic life hiding units attached thereto. Moreover, a plurality of habitat apparatuses may be fastened together and installed horizontally to cover a relatively large area, and/or connected together both horizontally and vertically to create three-dimensional habitats for aquatic life. Systems and methods of making and using the same are further provided.
    Type: Application
    Filed: June 7, 2019
    Publication date: April 2, 2020
    Inventor: David W. Ewald
  • Patent number: 10602725
    Abstract: A modular habitat apparatus for attaching and anchoring aquatic life hiding units thereto comprises a weighted apparatus comprising a mat or platform for submersion in waterways wherein aquatic life hiding units may be attached thereto. The present invention further comprises a modular system of one or more habitat apparatuses having aquatic life hiding units attached thereto. Moreover, a plurality of habitat apparatuses may be fastened together and installed horizontally to cover a relatively large area, and/or connected together both horizontally and vertically to create three-dimensional habitats for aquatic life. Systems and methods of making and using the same are further provided.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: March 31, 2020
    Inventor: David W. Ewald
  • Patent number: 8640651
    Abstract: Fish hiding units are discloses herein, which may comprise a sinkable container comprising at least one open end; a plurality of elongated and substantially flat projection members comprising a body and opposing ends inserted at one end into the open end of the container; and an adhesive substance disposed in the container for attaching the projection members inside the container.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: February 4, 2014
    Inventor: David W. Ewald
  • Publication number: 20110067642
    Abstract: Fish hiding units are discloses herein, which may comprise a sinkable container comprising at least one open end; a plurality of elongated and substantially flat projection members comprising a body and opposing ends inserted at one end into the open end of the container; and an adhesive substance disposed in the container for attaching the projection members inside the container.
    Type: Application
    Filed: September 24, 2009
    Publication date: March 24, 2011
    Inventor: David W. Ewald
  • Patent number: 4936584
    Abstract: A golf taining device is mounted on the bill of a golfer's headpiece and is operable to provide clear evidence of improper head or neck movement during the golf swing, and foster coordinated rotational movement of shoulders, torso and hips. The device includes a ball and a base member consisting of a cup shaped ball carrying seat structure having a ball retaining wall having side walls of a reduced height but of a size and disposition to normally keep the ball in the seat structure even during the address of a ball to be struck and during a correct swing. The ball is tethered to the base member by a flexible cord and the wall is of insufficient size to prevent movement of the ball out of the seat structure when the base member is moved or tilted in an accented way by improper head or neck movement during the golf swing.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: June 26, 1990
    Inventors: David W. Ewald, Gary S. Worden