Patents by Inventor Walker M. Sloan, III

Walker M. Sloan, III 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).

  • Apparatus for collection and transfer of particles and manufacture thereof
    Patent number: 5772818
    Abstract: A device for collecting particles, such as human cells, from a fluid sample, and for transferring the collected particles to a receiver, such as a glass microscope slide, provides substantially exact replication of the spatial distribution of the cells on the collection device. The device supports a surface-collecting filter on a tubular rim, with a precise degree of flatness, and fastens the filter in place at a mounting shoulder recessed below the rim. Distortions of the mounting shoulder or of the filter at the mounting shoulder, caused by securing the filter to the shoulder, are confined to the shoulder structure, and do not detract from the desired precision flatness of the filter and rim structure.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: June 30, 1998
    Assignee: Cytyc Corporation
    Inventors: Lewis T. Polk, Jr., Hugh Vartanian, Phillip P. Brown, Walker M. Sloan III
  • Apparatus for collection and transfer of particles and manufacture thereof
    Patent number: 5503802
    Abstract: A device for collecting particles, such as human cells, from a fluid sample, and for transferring the collected particles to a receiver, such as a glass microscope slide, provides substantially exact replication of the spatial distribution of the cells on the collection device. The device supports a surface-collecting filter on a tubular rim, with a precise degree of flatness, and fastens the filter in place at a mounting shoulder recessed below the rim. Distortions of the mounting shoulder or of the filter at the mounting shoulder, caused by securing the filter to the shoulder, are confined to the shoulder structure, and do not detract from the desired precision flatness of the filter and rim structure.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: April 2, 1996
    Assignee: Cytyc Corporation
    Inventors: Lewis T. Polk, Jr., Hugh Vartanian, Phillip P. Brown, Walker M. Sloan, III
  • Apparatus for collection and transfer of particles
    Patent number: 5364597
    Abstract: A device for collecting particles, such as human cells, from a fluid sample, and for transferring the collected particles to a receiver, such as a glass microscope slide, provides substantially exact replication of the spatial distribution of the cells on the collection device. The device supports a surface-collecting filter on a tubular rim, with a precise degree of flatness, and fastens the filter in place at a mounting shoulder recessed below the rim. Distortions of the mounting shoulder or of the filter at the mounting shoulder, caused by securing the filter to the shoulder, are confined to the shoulder structure, and do not detract from the desired precision flatness of the filter and rim structure.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: November 15, 1994
    Assignee: Cytyc Corporation
    Inventors: Lewis T. Polk, Jr., Hugh Vartanian, Phillip P. Brown, Walker M. Sloan, III