Patents by Inventor Erwin A. Ritter

Erwin A. Ritter 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: 6729094
    Abstract: A prefabricated concrete panel for use in forming the walls, floor, roof, ceiling, and/or foundation of a building is provided. The prefabricated concrete panel includes a concrete slab, a metal mesh embedded in the slab, an insulating panel adjacent to a surface of the concrete slab, one or more studs, upper and lower U-shaped tracks, and one or more connectors attached to the studs. A method of making the prefabricated concrete panels and a method of constructing a building using the prefabricated concrete panels are provided.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: May 4, 2004
    Assignee: Tex Rite Building Systems, Inc.
    Inventors: Alicia Spencer, Erwin Ritter
  • Patent number: RE29311
    Abstract: An apparatus is used for applying paint in a container to a surface. The apparatus includes a paint applicator which is movable along the surface to apply paint directed thereto to the surface. Conduit means is provided for directing the paint from the container to the applicator means. A pump having an inlet in communication with the paint in the container and which is operable to continuously draw paint from an open-end container has an outlet which communicates with the conduit means the the pump directs the paint through the conduit means to the applicator. Means is provided for continuously directing at least a part of the paint from the outlet of the pump back to the container so that the paint in the container is continuously mixed in the container while paint is being delivered to the applicator. In addition, the applicator is carried on an extensible or telescoping-type handle and the handle is removable from the applicator without disconnecting the conduit for directing the paint to the applicator.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: July 19, 1977
    Inventor: Erwin A. Ritter