Patents by Inventor Bruce Sellers

Bruce Sellers 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: 7433755
    Abstract: A process for curing a natural or synthetic rubber compound under a plurality of curing conditions by: (1) obtaining time dependent data streams of dielectric or impedance values from a non-bridged impedance sensing circuit and a capacitor having the rubber compound being cured as a dialectric; (2) determining impedance related measurements from the obtained data streams; (3) determining a predictive curing equation by performing a multiple regression between: (a) reheometric data obtained from a plurality of different rubber compound samples cured in a rheometer at various environmental curing conditions, and (b) corresponding samples cured in a production mold at the same environmental conditions; (4) adjusting the curing equation to obtain cured parts having one or more desired properties; and (5) controlling the mass producing cured parts with a controller that uses the curing equation for predicting a cure time for each part, wherein the predictions are effective over variations in the rubber compound, a
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: October 7, 2008
    Assignee: Signature Control Systems, Inc.
    Inventors: Richard Magill, John C. Van Doren, Bruce Sellers, Tim Erickson, Scott Schnieder, Steve Courington, Lance Bethel
  • Publication number: 20070185611
    Abstract: A process for curing a natural or synthetic rubber compound under a plurality of curing conditions by: (1) obtaining time dependent data streams of dielectric or impedance values from a non-bridged impedance sensing circuit and a capacitor having the rubber compound being cured as a dialectric; (2) determining impedance related measurements from the obtained data streams; (3) determining a predictive curing equation by performing a multiple regression between: (a) reheometric data obtained from a plurality of different rubber compound samples cured in a rheometer at various environmental curing conditions, and (b) corresponding samples cured in a production mold at the same environmental conditions; (4) adjusting the curing equation to obtain cured parts having one or more desired properties; and (5) controlling the mass producing cured parts with a controller that uses the curing equation for predicting a cure time for each part, wherein the predictions are effective over variations in the rubber compound, a
    Type: Application
    Filed: March 30, 2007
    Publication date: August 9, 2007
    Applicant: SIGNATURE CONTROL SYSTEMS, INC.
    Inventors: Richard Magill, John Van Doren, Bruce Sellers, Tim Erickson, Scott Schneider, Steve Courington, Lance Bethel
  • Patent number: 7245985
    Abstract: A process for curing a natural or synthetic rubber compound under a plurality of curing conditions by: (1) obtaining time dependent data streams of dielectric or impedance values from a non-bridged impedance sensing circuit and a capacitor having the rubber compound being cured as a dialectric; (2) determining impedance related measurements from the obtained data streams; (3) determining a predictive curing equation by performing a multiple regression between: (a) reheometric data obtained from a plurality of different rubber compound samples cured in a rheometer at various environmental curing conditions, and (b) corresponding samples cured in a production mold at the same environmental conditions; (4) adjusting the curing equation to obtain cured parts having one or more desired properties; and (5) controlling the mass producing cured parts with a controller that uses the curing equation for predicting a cure time for each part, wherein the predictions are effective over variations in the rubber compound, a
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: July 17, 2007
    Assignee: Signature Control Systems
    Inventors: Richard Magill, John C. Van Doren, Bruce Sellers, Tim Erickson, Scott Schneider, Steve Courington, Lance Bethel
  • Publication number: 20050119785
    Abstract: A process for curing a natural or synthetic rubber compound under a plurality of curing conditions by: (1) obtaining time dependent data streams of dielectric or impedance values from a non-bridged impedance sensing circuit and a capacitor having the rubber compound being cured as a dialectric; (2) determining impedance related measurements from the obtained data streams; (3) determining a predictive curing equation by performing a multiple regression between: (a) reheometric data obtained from a plurality of different rubber compound samples cured in a rheometer at various environmental curing conditions, and (b) corresponding samples cured in a production mold at the same environmental conditions; (4) adjusting the curing equation to obtain cured parts having one or more desired properties; and (5) controlling the mass producing cured parts with a controller that uses the curing equation for predicting a cure time for each part, wherein the predictions are effective over variations in the rubber compound, a
    Type: Application
    Filed: March 11, 2004
    Publication date: June 2, 2005
    Applicant: Signature Control Systems
    Inventors: Richard Magill, John Van Doren, Bruce Sellers, Tim Erickson, Scott Schneider, Steve Courington, Lance Bethel
  • Patent number: 6855791
    Abstract: A process for curing a natural or synthetic rubber includes the measuring of curing conditions by dielectric or impedance means to produce a process curve (impedance property data versus time) followed by analyzing the process curve with a software algorithm which defines and statistically quantifies the correlation between the process curve and the desired part properties. The correlation relationship is applied in real time to end the curing process at the optimum time and to produce rubber parts of uniform quality and with reduced process cycle time.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: February 15, 2005
    Assignee: Signature Control Systems
    Inventors: John C. Van Doren, Richard Magill, Bruce Sellers, Tim Erickson, Scott Schnieder, Steve Courington, Lance Bethel
  • Publication number: 20040133301
    Abstract: A process for curing a natural or synthetic rubber includes the measuring of curing conditions by dielectric or impedance means to produce a process curve (impedance property data versus time) followed by analyzing the process curve with a software algorithm which defines and statistically quantifies the correlation between the process curve and the desired part properties. The correlation relationship is applied in real time to end the curing process at the optimum time and to produce rubber parts of uniform quality and with reduced process cycle time.
    Type: Application
    Filed: September 18, 2003
    Publication date: July 8, 2004
    Applicant: Signature Control Systems
    Inventors: John C. Van Doren, Richard Magill, Bruce Sellers, Tim Erickson, Scott Schneider, Steve Courington, Lance Bethel
  • Publication number: 20040010068
    Abstract: A process for curing a natural or synthetic rubber includes the measuring of curing conditions by dielectric or impedance means to produce a process curve (impedance property data versus time) followed by analyzing the process curve with a software algorithm which defines and statistically quantifies the correlation between the process curve and the desired part properties. The correlation relationship is applied in real time to end the curing process at the optimum time and to produce rubber parts of uniform quality and with reduced process cycle time.
    Type: Application
    Filed: October 8, 2002
    Publication date: January 15, 2004
    Applicant: Signature Control Systems
    Inventors: John C. Van Doren, Richard Magill, Bruce Sellers, Tim Erickson, Scott Schnieder, Steve Courington, Lance Bethel