Patents by Inventor Steven K. Dentel

Steven K. Dentel 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).

  • Chemical treatment for control of sulfide odors in waste materials
    Publication number: 20040226891
    Abstract: Disclosed herein is a process for removing odorants from a waste system comprising treating said waste system with ferric nitrate at a ratio of less than 2.4 parts nitrate oxygen for each 1 part reduced sulfur.
    Type: Application
    Filed: March 12, 2004
    Publication date: November 18, 2004
    Inventor: Steven K. Dentel
  • Selective adsorption of organic material from water by modified clays
    Patent number: 5401417
    Abstract: Purification of water with clay modified by cationic surfactant permits treatment of water with multiple impurities.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: March 28, 1995
    Assignee: University of Delaware
    Inventors: Steven K. Dentel, Ahmad I. Jamrah
  • Calibration of streaming current detection
    Patent number: 5220283
    Abstract: In a streaming current detector, a standard calibration solution is used to calibrate the streaming current signal representing the charged condition in a sample fluid containing particles. The standard calibration solution is electrokinetically stable over a wide range of pH and concentration. Calibration allows direct comparison of readings from different streaming current detectors.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: June 15, 1993
    Assignee: Milton Roy Company
    Inventor: Steven K. Dentel
  • Streaming current detector probe
    Patent number: 5121062
    Abstract: A streaming current detector has a reciprocating piston with a sensing region having a uniform clearance from the casing which is sufficiently large to avoid significant shearing of the particles in the fluid of the sample stream. A separate guiding region of the piston has a sufficiently tight fit in the casing for smooth reciprocation. A relief region of the piston has the largest clearance from the casing to provide a sufficiently large area to control a constant low velocity of the sample fluid.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: June 9, 1992
    Assignee: Milton Roy Company
    Inventors: Robert F. Bean, Steven K. Dentel