Patents by Inventor Glenn G. Havens

Glenn G. Havens 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: 4627573
    Abstract: A pressure compensating flow control device includes a generally elongated, collapsible tubular body of flexible material such as silicone rubber having a teardrop shaped inlet orifice for extending into a high pressure supply line, an outlet end for distributing a flow of liquid with the inlet orifice and tubular body collapsible in response to pressure to maintain a generally predetermined uniform flow rate over a predetermined pressure range. The inlet end of the tubular member tapers down to a reduced teardrop inlet orifice with the outlet opening in one embodiment comprising a crescent shaped slit in the wall of the tube.
    Type: Grant
    Filed: February 17, 1984
    Date of Patent: December 9, 1986
    Assignee: Havens International
    Inventors: Glenn G. Havens, deceased, by Richard C. Thompson, executor
  • Patent number: 4589595
    Abstract: A pressure compensated emitter for irrigation systems and the like includes a generally tubular hard plastic support body for mounting in a port or opening in an irrigation line with a flexible tubular flow control member mounted within the housing with a seal end sealingly engaging a seat in the outlet end of the housing with an inlet port extending toward the inlet opening in the housing with the flow control device being a flexible tubular member having an inlet section of a generally teardrop cross-sectional configuration of a first diameter and a tubular barrel of a second diameter of a generally cylindrical tubular cross section with the inlet section responsive to a first range of pressures and the barrel section responsive to a second range of pressures for regulating and maintaining a substantially uniform flow rate over a range of pressures.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: May 20, 1986
    Assignee: Havens International, Inc.
    Inventor: Glenn G. Havens, deceased
  • Patent number: 4254916
    Abstract: A thin wall irrigation emitter tube is constructed of a generally flat configuration having a plurality of holes in a crease extending along the top of the tubing for distribution from the tubing in vertical spray or streams. The method of forming the tubing includes the forming of a rib or crease along the upper surface in which holes are formed by means of laser or the like so that smearing of the melted tube material during subsequent flattening of the tubing and thereby closing or partially closing of the holes is prevented.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: March 10, 1981
    Assignee: Bayshore Creative Products, Inc.
    Inventors: Glenn G. Havens, Thomas F. McGee
  • Patent number: 4193545
    Abstract: A pressure compensating emitter comprises a generally cylindrical body member having a longitudinal passageway therethrough connecting an inward port and an outward port and a flexible pressure responsive boot mounted within the passageway for responding to increases in pressure within the boot or cup for biasing the walls of the boot into a water flow passageway and restricting the passageway communicating between the inlet and outlet ports in the body of the emitter.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: March 18, 1980
    Assignee: Bayshore Creative Products, Inc.
    Inventor: Glenn G. Havens