Patents by Inventor Jim Stemple

Jim Stemple 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).

  • Peristaltic pump
    Patent number: 8052399
    Abstract: A peristaltic pump is presented comprising a housing and a rotor assembly supported by the housing. An occlusion bed is slideably mounted in the housing. A door is pivotable about a shaft, which is supported by the housing. A pinion gear is coupled to the shaft and engages a rack on the occlusion bed. Rotation of the shaft causes the occlusion bed to slide toward or away from the rotor assembly. An open portion of a tube retaining system is associated with the housing and a clamping portion of the tube retaining system is associated with the door. The open portion and the clamping portion of the tube retaining system are configured to secure flexible tubing therebetween when the door is in a closed position.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: November 8, 2011
    Assignee: Cole-Parmer Instrument Company
    Inventors: Jim Stemple, Andrew Frolov
  • PERISTALTIC PUMP
    Publication number: 20090129944
    Abstract: A peristaltic pump is presented comprising a housing and a rotor assembly supported by the housing. An occlusion bed is slideably mounted in the housing. A door is pivotable about a shaft, which is supported by the housing. A pinion gear is coupled to the shaft and engages a rack on the occlusion bed. Rotation of the shaft causes the occlusion bed to slide toward or away from the rotor assembly. An open portion of a tube retaining system is associated with the housing and a clamping portion of the tube retaining system is associated with the door. The open portion and the clamping portion of the tube retaining system are configured to secure flexible tubing therebetween when the door is in a closed position.
    Type: Application
    Filed: October 17, 2008
    Publication date: May 21, 2009
    Applicant: COLE-PALMER INSTRUMENT COMPANY
    Inventors: Jim Stemple, Andrew Frolov