Patents by Inventor Jatal D. Mannapperuma

Jatal D. Mannapperuma 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).

  • Process for production of purified beet juice for sugar manufacture
    Patent number: 6387186
    Abstract: The present invention relates to a process for producing sugar from beets, comprising the steps of: (a) macerating beets or pieces thereof; (b) mechanically separating juice from the macerated beets; and (c) membrane filtering the separated juice, producing a retentate and a permeate. The mechanical extraction of juice can be done on a moving porous vacuum filtration belt with countercurrent flow of macerated beets and water. The pH of the vacuum extracted juice can be adjusted to at least about 7 by addition of sodium hydroxide. This process does not use conventional beet diffusion. No lime and no carbon dioxide are required to be contacted with the juice or the permeate in this process.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: May 14, 2002
    Assignee: Tate & Lyle, Inc.
    Inventors: Richard C. Reisig, Jatal D. Mannapperuma
  • Process for production of purified beet juice for sugar manufacture
    Publication number: 20010054420
    Abstract: The present invention relates to a process for producing sugar from beets, comprising the steps of: (a) macerating beets or pieces thereof; (b) mechanically separating juice from the macerated beets; and (c) membrane filtering the separated juice, producing a retentate and a permeate. The mechanical extraction of juice can be done on a moving porous vacuum filtration belt with countercurrent flow of macerated beets and water. The pH of the vacuum extracted juice can be adjusted to at least about 7 by addition of sodium hydroxide. This process does not use conventional beet diffusion. No lime and no carbon dioxide are required to be contacted with the juice or the permeate in this process.
    Type: Application
    Filed: June 18, 2001
    Publication date: December 27, 2001
    Applicant: Tate & Lyle, Inc.
    Inventors: Richard C. Reisig, Jatal D. Mannapperuma
  • Corrugated spiral membrane module
    Patent number: 5458774
    Abstract: An improved spiral membrane and module for cross flow filtration where several of the membrane envelopes are wavelike or corrugated in structure to allow unobstructed flow of the feed to reduce the feed path fouling when used to filter feed containing particulate matter.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: October 17, 1995
    Inventor: Jatal D. Mannapperuma