Patents by Inventor John J. Cain

John J. Cain 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).

  • Adsorption process for paraxylene purifacation using Cs SSZ-25 adsorbent with benzene desorbent
    Patent number: 6281406
    Abstract: An adsorption process for the recovery of paraxylene from mixed xylenes using a molecular sieve adsorbent comprising SSZ-25, MCM-22, PSH-3, ERB-1, or ITQ-1. A preferred desorbent for the process is benzene. A hybrid adsorption/crystallization PX purification process is also described using the molecular sieve adsorbent.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: August 28, 2001
    Assignee: Chevron Corporation
    Inventor: John J. Cain
  • Single cavity automobile muffler
    Patent number: 5272286
    Abstract: A noise suppression system for use on internal combustion engines and small enough for use in automotive applications is disclosed. A cancellation noise generator and actuator speakers produce a noise to combine with and cancel the engine noise carried in exhaust gases in a mixing chamber. The resultant noise leaving the mixing chamber is measured by a circular tubular microphone array to control the noise generator.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: December 21, 1993
    Assignee: Active Noise and Vibration Technologies, Inc.
    Inventors: John J. Cain, Dennis Barnes, David A. Dye
  • Noise suppression system
    Patent number: 5133017
    Abstract: A noise cancellation system, comprising a symmetrical assembly of microphone inputs is disclosed. A controller receives the output of the microphone assembly and generates an electrical cancellation signal having a polarity opposite the polarity of a portion of a noise to be cancelled and a magnitude equal to the magnitude of the portion of the noise to be cancelled. An actuator receives the electrical cancellation signal and outputs an audio cancellation signal.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: July 21, 1992
    Assignee: Active Noise and Vibration Technologies, Inc.
    Inventors: John J. Cain, Jamie Chait, David Dye, Dennis Barnes