Patents by Inventor Rhyta Sabina Rounds

Rhyta Sabina Rounds 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).

  • Test methods and device for measuring transient resistance to movement
    Patent number: 9541491
    Abstract: A device for transient measurement of motion resistance between test substance and one or two test surfaces, comprising a tension/compression force transducer, a speed and/or torque controlled motor with position encoder, rails for mounting a movable sled, method for applying a normal force on the test specimen and computerized data acquisition. The tension/compression force transducer is capable of measuring the transient resistance to motion of the sample mounted to the movable sled in either horizontal direction or in reversible motion oscillatory pull/pull direction at variable frequency and amplitude. The force transducer is capable of precise measurement of the full motion record of the test material from the initiation of motion to the steady state movement.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: January 10, 2017
    Inventors: Phillip Nelson Rounds, Rhyta Sabina Rounds
  • Test Methods and Device for Measuring Transient Resistance to Movement
    Publication number: 20140311210
    Abstract: A device for transient measurement of motion resistance between test substance and one or two test surfaces, comprising a tension/compression force transducer, a speed and/or torque controlled motor with position encoder, rails for mounting a movable sled, method for applying a normal force on the test specimen and computerized data acquisition. The tension/compression force transducer is capable of measuring the transient resistance to motion of the sample mounted to the movable sled in either horizontal direction or in reversible motion oscillatory pull/pull direction at variable frequency and amplitude. The force transducer is capable of precise measurement of the full motion record of the test material from the initiation of motion to the steady state movement.
    Type: Application
    Filed: April 18, 2013
    Publication date: October 23, 2014
    Inventors: Phillip N. Rounds, Rhyta Sabina Rounds
  • Balanced water purification system
    Patent number: 6149821
    Abstract: A balanced water purification system is provided with a buffer compound, and oxidizer/clarifier compound, and a biocide compound disposed in multiple packets such that the biocide compound and the oxidizer/clarifier compound are contained in different packets. The composition purifies and clarifies water while maintaining the existing water pH. The composition may also include a filtration aid, an algicide, a calcium releasing source, a chelator, and a sequestering agent.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: November 21, 2000
    Assignee: Advanced Water Technology, Inc.
    Inventors: Rhyta Sabina Rounds, Tsui-Ling Hsu
  • Balanced water purification composition
    Patent number: 6120698
    Abstract: A balanced water purification composition is provided with a buffer compound, and oxidizer/clarifier compound, and a biocide compound. The composition purifies and clarifies water while maintaining the existing water pH. The composition may also include a filtration aid, an algicide, a calcium releasing source, a chelator, and a sequestering agent.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: September 19, 2000
    Assignee: Advanced Water Technology, Inc.
    Inventors: Rhyta Sabina Rounds, Tsui-Ling Hsu