Patents by Inventor David Edler

David Edler 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).

  • Corrugated tube fitting
    Patent number: 6877781
    Abstract: A fitting for an end of a length of corrugated tubing has a split retainer that grips the tubing corrugations, and is engaged between a fitting body and a nut. Upon tightening the nut on the fitting body, the endmost corrugation is compressed between the retainer and a sealing seat on the fitting body arranged to provide a narrow metal-metal sealing junction and also a gasket seal. The fitting body has an inwardly tapered conical surface with a circular outer radius surrounded by an annular groove, thus forming a sealing edge, and the annular groove carries a gasket. The conical surface is dimensioned so that the sealing edge falls between the maximum and minimum diameters of the endmost corrugation. As the fitting is tightened, the endmost corrugation is collapsed between the sealing edge and the retainer, providing a metal/metal clamped sealing junction. The outer diameter part of the endmost corrugation is wrapped into a bead or torus that compresses the gasket, forming a metal/gasket additional seal.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: April 12, 2005
    Assignee: Highlands Corporation
    Inventor: David Edler
  • CORRUGATED TUBE FITTING
    Publication number: 20050023832
    Abstract: A fitting for an end of a length of corrugated tubing has a split retainer that grips the tubing corrugations, and is engaged between a fitting body and a nut. Upon tightening the nut on the fitting body, the endmost corrugation is compressed between the retainer and a sealing seat on the fitting body arranged to provide a narrow metal-metal sealing junction and also a gasket seal. The fitting body has an inwardly tapered conical surface with a circular outer radius surrounded by an annular groove, thus forming a sealing edge, and the annular groove carries a gasket. The conical surface is dimensioned so that the sealing edge falls between the maximum and minimum diameters of the endmost corrugation. As the fitting is tightened, the endmost corrugation is collapsed between the sealing edge and the retainer, providing a metal/metal clamped sealing junction. The outer diameter part of the endmost corrugation is wrapped into a bead or torus that compresses the gasket, forming a metal/gasket additional seal.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 3, 2005
    Inventor: David Edler