Patents by Inventor John Himmelberger

John Himmelberger 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).

  • Irrigation tubing connection system
    Patent number: 6343813
    Abstract: A spline for joining irrigation tubing includes an elongated body portion. The body is configured to be inserted into and substantially fill a channel formed by aligning an interior channel in a female tubing end and a corresponding exterior channel in a male end. One or more serrations or slots in the body facilitate bending the body into annular channels. The end of the body is tapered to facilitate its insertion, including a taper along its length (such as on the side opposite the serrations), and a gripping portion on the spline further facilitates insertion and removal. Related methods are disclosed.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: February 5, 2002
    Assignee: Olson Irrigation Systems
    Inventors: Donald O. Olson, John Himmelberger
  • Towable nonconductive pipe adapter for a sprinkler having laterally extending surfaces
    Patent number: 5511826
    Abstract: Mechanically locking sprinkler fittings are provided by this invention for making a fluid connection between irrigation pipes. The sprinkler fittings contain a tubular fitting member having first and second open ends for mating with a pair of irrigation pipes. The tubular fitting member contains a laterally facing orifice for receiving a sprinkler riser and an annular recess located along its surface which corresponds with a mating annular recess on at least a first of the irrigation pipes to form an annular cavity. The fitting also includes a flexible spline inserted into the annular cavity to form a mechanical lock between the first pipe and the tubular fitting member. The sprinkler fittings of this invention are convenient to use, and can be made of lightweight polymeric materials.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: April 30, 1996
    Assignee: CertainTeed Corporation
    Inventors: James Clare, John Himmelberger
  • Mechanical joint pipe adapter with inserted flexible spline
    Patent number: 5509699
    Abstract: Mechanical pipe adapters are provided by this invention which include a gland for fitting around the circumference of a first pipe. The gland includes an annular recess located along its inner diameter and an aperture through a side wall of the gland for communicating with the annular recess. The adapter further includes a flexible spline inserted into the annular recess through the side aperture. The flexible spline forms a mechanical lock between the first pipe and the gland. After mounting the gland to a pipe, such as a PVC pipe, the gland can be thereafter mounted to a flanged end of a pipe, e.g., a cast iron fitting.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: April 23, 1996
    Assignee: CertainTeed Corporation
    Inventor: John Himmelberger