Patents by Inventor Alvin O. Larson

Alvin O. Larson 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).

  • Insertion-point seal for spiral wound module
    Patent number: 8142657
    Abstract: An improved method of fabricating a spiral wound module seals a juncture between each scroll face, preferably a smooth, trimmed scroll face, and a central permeate tube. The tube is generally perpendicular to the scroll face. Modules produced using the improved method have fewer insertion point leaks than those produced without using the improved method.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: March 27, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Alvin O. Larson, Steven D. Jons, Pearl I. Moody
  • INSERTION-POINT SEAL FOR SPIRAL WOUND MODULE
    Publication number: 20110174429
    Abstract: An improved method of fabricating a spiral wound module seals a juncture between each scroll face, preferably a smooth, trimmed scroll face, and a central permeate tube. The tube is generally perpendicular to the scroll face. Modules produced using the improved method have fewer insertion point leaks than those produced without using the improved method.
    Type: Application
    Filed: April 4, 2011
    Publication date: July 21, 2011
    Inventors: Alvin O. Larson, Steven D. Jons, Pearl I. Moody
  • Insertion-point seal for spiral wound module
    Patent number: 7951295
    Abstract: An improved method of fabricating a spiral wound module seals a juncture between each scroll face, preferably a smooth, trimmed scroll face, and a central permeate tube. The tube is generally perpendicular to the scroll face. Modules produced using the improved method have fewer insertion point leaks than those produced without using the improved method. Fast curable cyanoacrylate adhesive is used preferably.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: May 31, 2011
    Assignee: Dow Global Technologies LLC
    Inventors: Alvin O. Larson, Steven D. Jons, Pearl I. Moody
  • INSERTION-POINT SEAL FOR SPIRAL WOUND MODULE
    Publication number: 20110049043
    Abstract: An improved method of fabricating a spiral wound module seals a juncture between each scroll face, preferably a smooth, trimmed scroll face, and a central permeate tube. The tube is generally perpendicular to the scroll face. Modules produced using the improved method have fewer insertion point leaks than those produced without using the improved method. Fast curable cyanoacrylate adhesive is used preferably.
    Type: Application
    Filed: December 6, 2006
    Publication date: March 3, 2011
    Inventors: Alvin O. Larson, Steven D. Jons, Pearl I. Moody