Patents by Inventor Parker C. Reist

Parker C. Reist 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).

  • High-speed, low temperature sterilization and sanitization apparatus and method
    Patent number: 6752959
    Abstract: The present invention relates to a method of sterilizing and/or sanitizing a container using a sterilant vapor such as hydrogen peroxide. The sterilant vapor is discharged through a nozzle positioned in an opening of the container and the container is then purged of the discharged sterilant using a heated gas such as sterile air. The nozzle is preferably positioned no closer than 15 mm from the bottom surface or any internal surface of the container and within ⅙ to ⅚ of the height of the container. The nozzle has a diameter no greater than one-half of the diameter of the opening of the container. When containers made of non-heat set PET are used, the temperatures of the sterilant vapor and the purge gas are preferably no greater than 160° F.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: June 22, 2004
    Assignee: PepsiCo, Inc.
    Inventors: Richard T. Smith, Parker C. Reist, Stephen Glahn
  • High-speed, low-temperature sterilization and sanitization apparatus and method
    Publication number: 20030068251
    Abstract: The present invention relates to a method of sterilizing and/or sanitizing a container using a sterilant vapor such as hydrogen peroxide. The sterilant vapor is discharged through a nozzle positioned in an opening of the container and the container is then purged of the discharged sterilant using a heated gas such as sterile air. The nozzle is preferably positioned no closer than 15 mm from the bottom surface or any internal surface of the container and within ⅙ to ⅚ of the height of the container. The nozzle has a diameter no greater than one-half of the diameter of the opening of the container. When containers made of non-heat set PET are used, the temperatures of the sterilant vapor and the purge gas are preferably no greater than 160° F.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 10, 2003
    Inventors: Richard T. Smith, Parker C. Reist, Stephen Glahn
  • Gas filter apparatus and method of filtering
    Patent number: 4536200
    Abstract: A gas filter apparatus and method utilize cylindrical pleated paper filters arranged to collect particulates on the interior of the filters from scavenging gas flowed through the filters. The particulates are removed by applying a high pressure gas pulse to an air chamber in a cylindrical housing surrounding each filter in spaced relation which forces the removed particulates axially through an open end of the filter.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: August 20, 1985
    Inventor: Parker C. Reist
  • Acoustical particle detector and method
    Patent number: 4212190
    Abstract: The capability for differentiating particles according to size is provided in an improved acoustical detection apparatus and method for detecting particulate matter in air or other gases. This is accomplished by controlling the flow of the gas through the capillary section of an acoustic sensor such that the flow conforms to a predetermined Reynolds number selected according to the particle size of interest. It has been found that acoustical sensors exhibit a threshold for particle size detection which varies with the Reynolds number of the flow of a gas through it. Thus, the detection of particles above a given size is achieved by controlling the flow parameters to yield a Reynolds number appropriate for detecting particles of such size.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: July 15, 1980
    Assignee: Research Triangle Institute
    Inventors: Stephen R. Coover, Parker C. Reist