Including Means Or Structure For Promoting Safety Patents (Class 494/12)
  • Safety device for centrifugal separators
    Patent number: 4464161
    Abstract: A centrifugal separator capable of selectively mounting sedimentation tubes or capillary tubes on a rotor includes a container receptacle mounted in an outer box of the separator for receiving sedimentation tube containers. When the sedimentation tube containers are received in the container receptacle, their presence is detected to enable the rotor to rotate at a relatively high speed required when the capillary tubes mounted on the rotor.
    Type: Grant
    Filed: February 8, 1983
    Date of Patent: August 7, 1984
    Assignee: Kabushiki Kaisha Kubota Seisakusho
    Inventors: Tadahiro Uchida, Hiizu Wakita, Minoru Hara
  • Cover for centrifuge rotor
    Patent number: 4412830
    Abstract: A cover having a free-turning knob in its center for use on the rotor of a centrifuge. The knob includes tool means for coupling the knob with a threaded fastener securing the rotor to a drive shaft. Thus, when the cover is positioned on the rotor, the threaded fastener securing the rotor can be tightened or loosened by a turning of the knob. The rotor can thereby be removed and replaced without the use of external tools.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: November 1, 1983
    Assignee: Beckman Instruments, Inc.
    Inventors: David H. Strain, John H. Sutton, III
  • Centrifuge holder apparatus
    Patent number: 4377254
    Abstract: A centrifuge holder to inhibit movement of a centrifuge machine caused by a rotor within the centrifuge coming off the drive spindle. The holder apparatus is designed in such a manner that the centrifuge machine can be placed on or removed from the holder without the need of any separate tool. Tab members of the holding apparatus are received within spaced apertures located in the bottom of the centrifuge.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: March 22, 1983
    Assignee: Beckman Instruments, Inc.
    Inventors: Eric C. Huffman, James F. Woodall