Patents Represented by Attorney Margaret A. Ice Miller Donadio & Ryan Kivinski
  • Patent number: 6166371
    Abstract: A Diffuse Reflective Light Curtain System comprises at least one light curtain defining a border of a work zone for a robotic machine. Each light curtain comprises a primary board having multiple wells formed therein. Light emitting diodes (LEDs) and light detectors are alternately placed in the multiple wells. The LEDs shine light up from the wells to form a curtain of light above the primary board. If an object comes into contact with the curtain of light emitted from the LEDs, the light is reflected back to toward the board and enters the wells of the board where the light detectors sense the presence of LED light. When the light detectors in the wells sense the presence of LED light, they send a signal to a controller to indicate that the light curtain has been breached by a foreign object. The controller, in turn, suspends the operation of the robotic machine that is protected by the light curtain.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: December 26, 2000
    Assignee: Beckman Coulter, Inc.
    Inventors: Terry J. Milbrath, Jonn R. Hitch, Joe C. Hlebasko, Steven H. Mersch
  • Patent number: 6099230
    Abstract: An apparatus for storing and retrieving labware comprises at least one labware hotel having a frame, a plurality of support arms for receiving and supporting labware, and an elevator capable of moving the support arms in unison. The support arms are periodically located upon an elevator cable and are removable from the cable such that the distance between adjacent support arms may be varied. A labware shuttle having a labware receiving surface is capable of holding and transporting labware between a first and second position. The first position is directly below a labware hotel and the second position is a location remote from the labware hotel. When the shuttle is in the first position, support arms from the labware hotel may engage labware held on the shuttle to remove labware from the shuttle or place labware upon the shuttle. When the shuttle is in the second position, the labware receiving surface may be rotated so that the labware upon the shuttle may be presented in at least two angular orientations.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: August 8, 2000
    Assignee: Beckman Coulter, Inc.
    Inventor: Jonn R. Hitch
  • Patent number: 6080253
    Abstract: The present invention fulfills the above stated needs, as well as others, by providing a automated container sealing apparatus that automatically removes seals from a backing and applies the seals to the container. The seals are pre-cut and have a size corresponding to the size of the container. In an exemplary embodiment, the present invention includes an apparatus for sealing containers, the containers defined by a generally planar sealing surface and one or more receptacles, wherein each of the one or more receptacles include an opening coplanar with and defining corresponding openings in the sealing surface.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: June 27, 2000
    Assignee: Beckman Coulter, Inc.
    Inventor: John R. Hitch