Patents Assigned to Chromatography Research Supplies, Inc.
  • Patent number: 11467136
    Abstract: A septum contains at least one internal chamber along the central axis of the septum. The chamber provides relief space into which the sealing sections of the septum can deform as a needle passes through the septum. Incorporation of the chamber reduces surface area contact and friction between the septum and needle, which results in reduced septum tearing and reduced production of particulate matter from abrasion.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: October 11, 2022
    Assignee: Chromatography Research Supplies, Inc.
    Inventors: Christopher A. Carlisle, Mohamed M. Marei, David L. Jones, Edward J. Heiny, David S. Hubbard
  • Patent number: 10859540
    Abstract: A septum containing a duckbill valve assembly includes a plurality of elastomeric ribs extending from the body of the septum to the duckbill valve assembly. When inserted into an injection port cavity, force generated by an interference fit between the body of the septum and the cavity is transmitted by the ribs to the duckbill valve assembly. The ribs are configured to reversibly collapse at a hinge point when a needle is inserted through the duckbill valve assembly and are spaced to assist in centering the needle in the duckbill valve assembly. The ribs reduce wear on the duckbill valve assembly by reducing the concentration of compressive forces at higher inlet pressures while maintaining sufficient compressive force to close the duckbill valve assembly at lower inlet pressures.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: December 8, 2020
    Assignee: Chromatography Research Supplies, Inc.
    Inventors: Christopher A. Carlisle, Mohamed M. Marei, David L. Jones, Edward J. Heiny, David S. Hubbard
  • Patent number: 7744684
    Abstract: The present invention relates to a high capacity gas filter system. The metal filter of the system includes a visible indicator which indicates when the filter is spent. The indicator is preferably a non-reactive glass tube with indicator material therein. The glass tube can be protected to maintain gas flow integrity in case the glass tube breaks. The filter is attachable to or removable from its connecting base using a cooperating threaded knob and threaded bolt such that the filter is pulled tightly onto the base and forced off of the base depending on how the knob is rotated.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: June 29, 2010
    Assignee: Chromatography Research Supplies, Inc.
    Inventor: Glenn E. Thomas
  • Patent number: 6477919
    Abstract: The present invention relates to a powered decapping tool used to remove a cap from a bottle or vial. The powered tool has a vertical housing portion which the user holds to activate the decapping action. The decapping action results form a motor causing a plunger to move downward, thereby initially closing a plurality of jaws and continuing downward to cooperate with the jaws to remove the cap from the bottle or vial. Means may be provided to adjust the starting point of the decapping cycle or the plunger upper limit as well as the finishing point of the decapping cycle or the plunger lower limit.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: November 12, 2002
    Assignee: Chromatography Research Supplies, Inc.
    Inventors: Glenn E. Thomas, Paul T. Scherer, Joseph L. Hallock, Edward B. Alcorn
  • Patent number: 6196045
    Abstract: The present invention relates to a powered crimping tool. In the parent application, referenced above, the tool, having a plurality of crimping jaws, is used to secure a cap onto a bottle or vial. In this application, the tool, having a pair of opposed crimping heads, is used to crimp a solderless terminal, splice, butt connector, or the like, having a wire inserted into a shaft and to be retained therein. The powered tool has a housing portion which the user holds and includes switches for the user to control the plunger and the crimping action. Selected mating crimper heads in the plunger and the crimper housing effectuate the crimping of the selected terminal to retain the wire therein. These mating crimper heads can be changed to accommodate a variety of different size and shape terminals, splices, butt connectors, wires, and the like. Terminals may be insulated or not. Wires may be stranded or solid.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: March 6, 2001
    Assignee: Chromatography Research Supplies, Inc.
    Inventors: Glenn E. Thomas, Paul T. Scherer, Joseph L. Hallock, Edward B. Alcorn
  • Patent number: 5579626
    Abstract: A crimping tool used to secure a cap onto a bottle or vial. The tool has vertical handles, a crimping action involving combined horizontal movement of a movable handle controlling the vertical movement of the crimper, and an in line screw stop to limit the downward movement of the crimper.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: December 3, 1996
    Assignee: Chromatography Research Supplies, Inc.
    Inventor: Glenn E. Thomas
  • Patent number: D357200
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: April 11, 1995
    Assignee: Chromatography Research Supplies, Inc.
    Inventor: Glenn E. Thomas
  • Patent number: D360265
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: July 11, 1995
    Assignee: Chromatography Research Supplies, Inc.
    Inventor: Glenn E. Thomas
  • Patent number: D364809
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: December 5, 1995
    Assignee: Chromatography Research Supplies, Inc.
    Inventor: Glenn E. Thomas
  • Patent number: D389761
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: January 27, 1998
    Assignee: Chromatography Research Supplies, Inc.
    Inventor: Glenn E. Thomas
  • Patent number: D399008
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: September 29, 1998
    Assignee: Chromatography Research Supplies, Inc.
    Inventor: Glenn E. Thomas