Rotating Patents (Class 209/278)
  • Apparatus and method for separating particles within a specimen
    Patent number: 7846394
    Abstract: Embodiments of the present invention provide an apparatus and a method for separating particles within a sample. The apparatus includes a reservoir for receiving a biological specimen therein, wherein the specimen includes a plurality of different sized particles in a liquid. At least one physical state of the specimen is capable of being controlled in order to initially separate at least a first type of particles under the influence of gravity. The apparatus also includes a rotatable disk positioned proximate to the reservoir and configured to receive the first type of particles thereon. The disk has holes defined therethrough that are configured to further separate the first type of particles based on particle size.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: December 7, 2010
    Assignee: Becton, Dickinson and Company
    Inventor: Nicholas R. Bachur, Jr.
  • Blade arrangement for pulp screening apparatus
    Patent number: 6138836
    Abstract: In the arrangement, the cross section of a blade rotating close to the surface of a screen cylinder changes in such a way that as the pulp consistency changes in the vertical direction of the screen cylinder, the cross section of the blade also changes in order to operate as efficiently as possible according to the pulp consistency by the blade.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: October 31, 2000
    Assignee: Valmet Corporation
    Inventor: Juhani Valli
  • Grain cleaning auger
    Patent number: 4684458
    Abstract: A grain cleaning attachment is disclosed for a grain auger. The attachment includes a cylindrical vibrating portion to surround the auger flighting after removal of a portion of the auger tube. The vibrating member is sized to provide a clearance between the walls of the member and the auger flighting to permit vibratory displacement of the member. Rubber sleeves connect the vibrating member ends to free ends of the auger tube. A vibration motor is carried by the vibrating member to affect vibration of the member. A tube support member is provided comprising a pair of rigid sleeves rigidly connected to the auger tube on both a downstream and upstream side of the vibrating member. Rigid braces connect the sleeves in axial alignment. A downstream sleeve has an opening to find therethrough in communication with an interior of the tube with a blower carried on the sleeve having an intake in communication with the opening.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: August 4, 1987
    Inventor: La Von P. Grotto
  • Dewatering apparatus for waste recovery systems
    Patent number: 4424129
    Abstract: An apparatus for collecting, transporting and dewatering animal waste prior to its introduction into a press for separating the solids therein from the remaining liquid waste.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: January 3, 1984
    Inventor: Richard E. Bunger