Patents by Inventor Robert Leland Frenkel

Robert Leland Frenkel 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: 6419967
    Abstract: A tomato peel material pH level adjustment system (10) including a plurality of peel material receiving tanks (32, 33), pumps (36, 37), acid injection devices (71, 46, 48), mixing devices (34, 35) and mixing conduits (40, 41) extending to a system output such as storage holding tank or process equipment (42). A plurality of pH sensors (56, 58, 60) sense the pH level of the tomato peel material and acid mixture in the receiving tanks (32, 33) and in the mixing conduits (40, 41) and a controller (PC) responsive to pH level sensing signals causes acid injection into the peel material (22) while in the receiving tanks (32, 33) and/or while in the mixing conduits (40, 41). Base material optionally also can be added to the mixing conduits (40, 41) to correct pH level overshoots. Rather than adding acid or a base, the tomato peel material (22) can be diverted back from the mixing conduits (40, 41) to the receiving tanks (32, 33).
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: July 16, 2002
    Assignee: FMC Technologies, Inc.
    Inventors: Sherman Howell Creed, Rey A. Elizondo, Robert Leland Frenkel, Lloyd F. Hay, Westley W. Walter
  • Patent number: 6311611
    Abstract: A two-stage steam peeler for peeling the skins of fruit, such as tomatoes, from the body of the fruit, comprising an infeed conveyor (10), a feed valve (12), a pressurized steam chamber (14), an outlet vacuum valve (16), a flexible cable peeler (20), and a pinch roller assembly (22). A first stage heater is provided by an enclosure (90) and steam introduction device (100) that preheats the tomatoes prior to entry into feed valve (12).
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: November 6, 2001
    Assignee: FMC Corporation
    Inventors: Robert Leland Frenkel, Zhijun Weng
  • Patent number: 6155163
    Abstract: A tomato peel material acidification system (10) including a receiving tank (32), a pump (36), acid injection devices (46, 48), mixing devices (38, 39), and a return line (52) for recirculating tomato peel material with an acid level that is too high. PH sensor probes (56, 58, 60) test the pH level of the tomato peel and acid mixture and appropriate controls direct the opening and closing of valves (50, 51, 54, 55) to re-direct the mixture back into the receiving tank.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: December 5, 2000
    Assignee: FMC Corporation
    Inventors: Sherman Howell Creed, Rey A. Elizondo, Robert Leland Frenkel, Lloyd F. Hay, Westley W. Walter
  • Patent number: 6082252
    Abstract: A tomato lye applicator (10) including a pre-heat apparatus (14) mounted to the shell (16) of applicator (10) for pre-heating tomatoes prior to submerging in a lye solution bath (28). Pre-heat apparatus (14) includes a conveyor (42) and steam connections (64, 66) for heating enclosure (40) so that as tomatoes move from inlet (18) to applicator inlet (20), the skins of the tomatoes are pre-heated an amount sufficient to enhance skin loosening by the lye solution.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: July 4, 2000
    Assignee: FMC Corporation
    Inventors: Sherman Howell Creed, Rey A. Elizondo, Robert Leland Frenkel
  • Patent number: 6056987
    Abstract: A two-stage steam peeler for peeling the skins of fruit, such as tomatoes, from the body of the fruit, comprising an infeed conveyor (10), a feed valve (12), a pressurized steam chamber (14), an outlet vacuum valve (16), a flexible cable peeler (20), and a pinch roller assembly (22). A first stage heater is provided by an enclosure (90) and steam introduction device (100) that preheats the tomatoes prior to entry into feed valve (12).
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: May 2, 2000
    Assignee: FMC Corporation
    Inventors: Robert Leland Frenkel, Zhijun Weng
  • Patent number: 6007855
    Abstract: A tomato peel material acidification system (10) including a receiving tank (32), a pump (36), acid injection devices (46, 48), mixing devices (38, 39), and a return line (52) for recirculating tomato peel material with an acid level that is too high. PH sensor probes (56, 58, 60) test the pH level of the tomato peel and acid mixture and appropriate controls direct the opening and closing of valves (50, 51, 54, 55) to re-direct the mixture back into the receiving tank.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: December 28, 1999
    Assignee: FMC Corporation
    Inventors: Sherman Howell Creed, Rey A. Elizondo, Robert Leland Frenkel, Lloyd F. Hay, Wesley W. Walter
  • Patent number: 5786014
    Abstract: An improved higher capacity caustic peeler of fruits such as tomatoes. The peeler subjects the tomatoes to a caustic applicator with shallower buckets with apertures in the buckets and a higher number of caustic dispensing jets, and then provides peeling using a flexible cable cage, which tumbles the tomatoes. A pinch roller is used to remove the remainder of the peels (or skins).
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: July 28, 1998
    Assignee: FMC Corporation
    Inventors: Sherman Howell Creed, Jeffrey Alan Dahl, Robert Leland Frenkel, Thomas Milton Sams
  • Patent number: 4019620
    Abstract: A method and apparatus for separating a generally rectangular array of containers into a single file line of similarly oriented single file containers. The array is comprised of a plurality of rectangular containers, some having transverse orientations and some having longitudinal orientations. The method of the invention includes advancing all the containers of the array into a number of lines of advancing containers, turning the containers with transverse orientations to longitudinal orientations, and converging the various transversely spaced and longitudinally oriented containers into a single file line of longitudinally oriented containers. The apparatus for practicing the invention may include a number of successive conveyor stations each having various conveyor means such as belts or rollers which sequentially advance the containers generally in a longitudinal path of movement.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: April 26, 1977
    Assignee: Coors Container Company
    Inventors: Robert Leland Frenkel, Peter Vischer, James Allen Gulka