Patents by Inventor Robert C. Metzger

Robert C. Metzger 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: 5836303
    Abstract: A respirator apparatus comprises a mask with a passage and a mesh material disposed across the passage. The mesh material is fused between two layers of the mask material in a molding process. The mask is made of a cross-linked polyethylene material that is flexible, resilient, impervious to liquids, and a good insulator. The cross-linked polyethylene material may be formed to fit the individual facial contours of the wearer, and has a memory. A lip is disposed across the top of the mask, and provides a seal, preventing moist air from escaping that may fog the goggles or the glasses of the wearer.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: November 17, 1998
    Assignee: Thermal Air Products, Inc.
    Inventors: Wendell Hurst, William J. Nielsen, Robert C. Metzger, Frederick D. Walker
  • Patent number: 5727804
    Abstract: A wheeled load connector for connecting a load to a vehicle, such as a pickup truck, includes a tongue connected at its front end to the vehicle between front and rear axles thereof, and a wheel-supported frame fixed to a rear end of the tongue to extend behind the vehicle. A vertically extending channel defined by a pair of spaced plates fixed at the juncture of the tongue and frame is arranged to slidably receive a guide bar attached to the rear of the vehicle, thereby constraining the load connector against side-to-side pivotal motion while permitting vertical pivotal motion thereof. A load may be connected by a universal trailer hitch mounted on the tongue by a mounting member, or by a dump truck bed tiltably connected to the tongue.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: March 17, 1998
    Assignees: Tammy Ann Metzger, Lynette Metzger-Metro
    Inventor: Robert C. Metzger