Patents by Inventor Stephen Graham Sawyer

Stephen Graham Sawyer 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).

  • Liquid collector and redistributor for packed columns
    Patent number: 8408026
    Abstract: An apparatus for collecting/redistributing a flow of liquid descending in an exchange column containing a layer of packing that includes: a plurality of horizontally spaced longitudinal members, each member having an inner side and an upper end adjacent a bottom of the layer of packing; at least one plate vertically spaced from the bottom of the layer of packing, each plate adapted to collect a portion of the flow of the descending liquid and having opposing ends connected to the inner sides of a pair of the longitudinal members; and at least one vapor riser in fluid communication with the plate and adapted to receive and transmit at least a portion of a stream of a vapor ascending in the exchange column from below to above the plate, each vapor riser having a cap vertically spaced apart from the bottom of the layer of packing.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: April 2, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Kenneth William Kovak, Clive Chalk, Stephen Graham Sawyer
  • Liquid Collector and Redistributor For Packed Columns
    Publication number: 20090049864
    Abstract: An apparatus for collecting/redistributing a flow of liquid descending in an exchange column containing a layer of packing that includes: a plurality of horizontally spaced longitudinal members, each member having an inner side and an upper end adjacent a bottom of the layer of packing; at least one plate vertically spaced from the bottom of the layer of packing, each plate adapted to collect a portion of the flow of the descending liquid and having opposing ends connected to the inner sides of a pair of the longitudinal members; and at least one vapor riser in fluid communication with the plate and adapted to receive and transmit at least a portion of a stream of a vapor ascending in the exchange column from below to above the plate, each vapor riser having a cap vertically spaced apart from the bottom of the layer of packing.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 26, 2009
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Kenneth William Kovak, Clive Chalk, Stephen Graham Sawyer