Patents by Inventor Stanley B. Collins

Stanley B. Collins 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).

  • Structured abrasive with parabolic sides
    Patent number: 7267700
    Abstract: An abrasive article and methods of making and using the same are disclosed. The abrasive article includes a plurality of features on a backing. The features have a base and a body. The body is defined by sidewalls having parabolic sections. In some embodiments, the sidewalls are defined by a series of inner-connected lines segments approximating a parabolic section.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: September 11, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Stanley B. Collins, John D. Haas
  • Method and apparatus for knurling a workpiece, method of molding an article with such workpiece, and such molded article
    Patent number: 5975987
    Abstract: A method and apparatus for knurling a workpiece in which the knurl pattern has an oblique helix angle relative to the longitudinal axis of the cylindrical workpiece. Also disclosed is a method of molding a molded article with the knurled workpiece to impart the inverse of the knurl pattern onto the molded article, such a molded article, a method of forming a structured abrasive article with the molded article, and such an abrasive article.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: November 2, 1999
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy L. Hoopman, Stanley B. Collins, James A. Servatius
  • Abrasive article, a process of making same, and a method of using same to finish a workpiece surface
    Patent number: 5454844
    Abstract: An abrasive article having a sheet-like structure having a major surface and having deployed in a fixed position thereon a plurality of abutting abrasive composites in an area spacing of at least 1,200 composites/cm.sup.2, each of the composites comprising a plurality of abrasive particles dispersed in a binder. The invention also relates to a method for reducing a surface finish of a workpiece surface using the abrasive article and a process for making the abrasive article of the invention.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: October 3, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Louis D. Hibbard, Stanley B. Collins, John D. Haas
  • Developer compositions having layer of a pigment on the surface thereof
    Patent number: 4379824
    Abstract: A developer composition capable of developing electrostatic images on dielectric surfaces is disclosed. The composition has an electrical conductivity of at least 10.sup.-6 ohm.sup.-1 centimeter.sup.-1 and utilizes a small dimension powdered material as a coating on the essentially smooth surface of individual spheroids of a toner. The composition reduces background coloration on finished copies and eliminates the need to bias the magnetic development roll.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: April 12, 1983
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Stanley B. Collins