Patents Assigned to Separations Technology, Inc.
  • Method and apparatus for electrophoretic separations
    Patent number: 5104505
    Abstract: The present invention relates to electrophoresis. More particularly, the present invention relates to utilization of electrophoresis with controlled cooling. Still more particularly, the invention relates to a method and apparatus for separating chemical components in a solution in both a batch and a continuous mode.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: April 14, 1992
    Assignee: Separations Technology, Inc.
    Inventor: Yuri Tarnopolsky
  • Column chromatographic column apparatus with switching capability
    Patent number: 5071547
    Abstract: The present invention involves a dual column chromatographic apparatus with column switching capability that is useful in any pressurized fluid chromatography system. The apparatus has at least a first and second chromatographic column, a detector, a fluid conveyance system having a multivalve arrangement, pressurizable fluid conduit assembly, and a controller.The columns are adapted for containing stationary phase or packing for separation of a multicomponent sample into one or more components. The multi-valve arrangement has a plurality of multi-port, multi-modal valves and can include an ingress-egress valve; a guard pre-column valve; detector isolation valve; a set of four, four-port, multi-modal valves; or a set of two four-port, multi-modal valves and one six-port, multi-modal valve or a first valve set and a second valve set. The two chromatographic columns, multi-valve arrangement, and detector are linked for pressurized fluid communication by the pressurized fluid conduit assembly.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: December 10, 1991
    Assignee: Separations Technology, Inc.
    Inventors: Frederick D. Cazer, Barry L. Scott, Garth E. Strobel
  • Method and apparatus for electrophoretic separations
    Patent number: 5032247
    Abstract: A method and apparatus for conducting electrophoretic separations is described in which heat exchange fluid is passed through hollow fibers in the electrophoretic chamber during the separation process and the separations are conducted in the interstices of the hollow fiber. Hollow fibers made of organic polymers, inorganic materials such as glass and silica, and natural fibers may be used.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: July 16, 1991
    Assignee: Separations Technology, Inc.
    Inventor: Yuri Tarnopolsky
  • HPLC column and a column packing method
    Patent number: 4737292
    Abstract: This invention relates to a column for use in preparative HPLC so structured as to insure a reproducible packing bed uniformity regardless of the particle size of the medium used.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: April 12, 1988
    Assignee: Separations Technology, Inc.
    Inventors: Robert P. Ritacco, Thomas W. Hampton
  • HPLC column
    Patent number: 4582608
    Abstract: An HPLC column provided with structure at its inlet and outlet ends to insure optimal distribution of fluids through the media therein.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: April 15, 1986
    Assignee: Separations Technology, Inc.
    Inventor: Robert P. Ritacco