Patents by Inventor Bruce N. Blackburn

Bruce N. Blackburn 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).

  • Patent number: 5010533
    Abstract: An apparatus for indicating time featuring a face having a stationary helical member positioned about a central point so that the distance between any point upon the helical member and a horizontal base plane increases in a clockwise direction around the circumference of the helical member. The face also includes a step member connecting the ends of the helical member along two radially extending common edges to form a continuous surface. At least one of these edges corresponds to the 12 o'clock position of the face thereby defining an indicia from which elapsed time is measured. Also, the face can include a plurality of members mounted upon a horizontal base plane and positioned about a central point. Each member is made of first and second planes of different areas which are angled with respect to the base plane and which intersect to form a common edge therebetween. The edges of the members extend toward the central point or terminate prior to that point to form a central face opening.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: April 23, 1991
    Assignee: Bernard Weinstein
    Inventor: Bruce N. Blackburn
  • Patent number: 4999822
    Abstract: An apparatus for indicating time featuring a face having a stationary helical member positioned about a central point so that the distance between any point upon the helical member and a horizontal base plane increases in a clockwise direction around the circumference of the helical member. The face also includes a step member connecting the ends of the helical member along two radially extending common edges to form a continuous surface. At least one of these edges corresponds to the 12 o'clock position of the face thereby defining an indicia from which elapsed time is measured. Also, the face can include a plurality of members mounted upon a horizontal base plane and positioned about a central point. Each member is made of first and second planes of different areas which are angled with respect to the base plane and which intersect to form a common edge therebetween. The edges of the members extend toward the central point or terminate prior to that point to form a central face opening.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: March 12, 1991
    Assignee: Bernard Weinstein
    Inventor: Bruce N. Blackburn
  • Patent number: 4884256
    Abstract: An apparatus for indicating time featuring a face having members positioned around a central point in five minute time intervals thereby forming a continuous surface, a pair of hands which rotate relative to the members and a means for mounting to a watchband, a wall or other such surface. These members may form a variety of different size and shape perimeters for the face. Also, the members may converge to the central point or terminate prior to that point to form a closed area.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: November 28, 1989
    Assignee: Bernard Weinstein
    Inventor: Bruce N. Blackburn
  • Patent number: D268035
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: February 22, 1983
    Assignee: Champion International Corporation
    Inventor: Bruce N. Blackburn
  • Patent number: D270454
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: September 6, 1983
    Assignee: Champion International Corporation
    Inventor: Bruce N. Blackburn
  • Patent number: D270455
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: September 6, 1983
    Assignee: Champion International Corporation
    Inventor: Bruce N. Blackburn
  • Patent number: D270456
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: September 6, 1983
    Assignee: Champion International Corporation
    Inventor: Bruce N. Blackburn