Patents by Inventor William Bergman

William Bergman 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).

  • Publication number: 20060254405
    Abstract: A string for a musical instrument includes an elongated string having a first and second end, and a playable section disposed therebetween. The string is fabricated at least partially from a plastic, wherein the plastic includes metallic particles disposed therein. Further, the metallic particles are distributed within the plastic such that the mass per unit length is generally uniform along the playable section of the string. As such, the string is suitable for use as a musical instrument string.
    Type: Application
    Filed: May 11, 2006
    Publication date: November 16, 2006
    Inventor: William Bergman
  • Patent number: 6416040
    Abstract: This is concerned with a fish tape reel assembly in the nature of an annular tape reel formed by mating together two substantially identical hollow annular segments and including a winder-puller mechanism which is mounted between the outer lip of the two annular segments so that the fish tape contained therein may be wound and unwound by rotating the winder-puller mechanism around the periphery of the reel. The winder-puller mechanism includes a handle and a means for a grasping the fish tape so that the fish tape extended from the reel may be pulled through conduit using the grip of the handle.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: July 9, 2002
    Inventor: William Bergman
  • Patent number: 5052660
    Abstract: The present invention features a fish constructed of assembled sections of fiberglass rods, one-quarter inch in diameter. Each length of fish section is provided with a female connection on opposite distal ends. A connector having a male end at both sides is also provided so that any length of fish can be assembled to suit the job requirement. It has been found that assembled six foot sections of fiberglass having a one-quarter inch diameter will provide the best flexibility over a wide range of lengths. Each six foot section is of a length that is easily stored, transported and handled by a skilled electrician. Each male and female connection is preferably made of steel or other metal to provide strength at the joints of the fiberglass sections.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: October 1, 1991
    Inventor: William Bergman