Patents by Inventor Ronald D. Ringleben

Ronald D. Ringleben 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).

  • Robotic reservoir without liquid hangup
    Patent number: 6800491
    Abstract: A reagent reservoir with a patterned bottom for full extraction of a liquid reagent by a multiple head pipettor. The bottom wall includes a plurality of recesses, each corresponding to a head of a multiple head pipettor. Each recess opens upwardly to receive the pipettor head, and includes a top edge, a bottom and surrounding side wall portions that angle outwardly from the recess bottom to the top edge. The recesses promote flow of the liquid reagent to the recess bottoms and prevent liquid hangup between recesses to eliminate waste of the liquid reagent. In one exemplary embodiment of the present invention, the top edges between adjacent recesses meet at an angle to form a pointed peak.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: October 5, 2004
    Assignee: Nalge Nunc International Corporation
    Inventors: Ronald D. Ringleben, Ian Pratt
  • Robotic reservoir without liquid hangup
    Publication number: 20020187079
    Abstract: A reagent reservoir with a patterned bottom for full extraction of a liquid reagent by a multiple head pipettor. The bottom wall includes a plurality of recesses, each corresponding to a head of a multiple head pipettor. Each recess opens upwardly to receive the pipettor head, and includes a top edge, a bottom and surrounding side wall portions that angle outwardly from the recess bottom to the top edge. The recesses promote flow of the liquid reagent to the recess bottoms and prevent liquid hangup between recesses to eliminate waste of the liquid reagent. In one exemplary embodiment of the present invention, the top edges between adjacent recesses meet at an angle to form a pointed peak.
    Type: Application
    Filed: June 8, 2001
    Publication date: December 12, 2002
    Applicant: Nalge Nunc International Corporation
    Inventors: Ronald D. Ringleben, Ian Pratt