With Closure Operator Patents (Class 211/82)
  • Floatable laboratory tube holder
    Patent number: 5114680
    Abstract: Laboratory tube, particularly centrifuge tube holders which float in water and have end members which can be pivoted between a substantially vertical lower position and a substantially vertical upper position in about 90 degree increments. In their lower position, the members serve as legs, while in an intermediate position, storage is facilitated. When in the upper position, the end members serve as handles and may be designed to lock in place an insert that prevents lids of the centrifuge tubes from inadvertently opening.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: May 19, 1992
    Assignee: La Jolla Biological Laboratories
    Inventors: Patrice S. Obermiller, Kirsten K. Blumeyer
  • Suspended refuse container
    Patent number: 4306699
    Abstract: The specification describes a device for containing refuse, including a container having a refuse receiving and discharge opening, a cover overlying the opening and pivotally connected to the container, and means for supporting the container above ground level for free swinging movement in a stable, normally upright position. The container is pivotable relative to the support means about a generally horizontal axis extending through the container upon application to the container about the axis for discharging the container.
    Type: Grant
    Filed: June 5, 1979
    Date of Patent: December 22, 1981
    Inventor: Jacob J. Neufeldt