Patents by Inventor Frederick W. Holstein

Frederick W. Holstein 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: 4161841
    Abstract: A fishing device having a body and a pair of wings extending outwardly from each side of the body and angled upwardly relative thereto to provide thrust surfaces, and a pair of deflectors associated with each wing including a front deflector and a rear deflector for initiating alternate rising and diving of the fishing device as the angle of a connecting bail changes relative to the body at different levels in the water because of the connection thereof to a moving tow line. Additionally, bimetal controlled weight structure is associated with the body and selectively operable to control the rise and dive limits of the fishing device to a range of water temperatures regardless of the angle of the bail.
    Type: Grant
    Filed: January 26, 1978
    Date of Patent: July 24, 1979
    Inventor: Frederick W. Holstein
  • Patent number: 4079539
    Abstract: A temperature responsive fishing device adapted to be secured to a line so that it may be pulled forwardly through water and change its depth in response to a change in the ambient temperature of the surrounding water includes a hydroplane, a weight movably disposed within a housing to change the longitudinal position of the center of gravity of the device substantially when moved, thermal control elements responsive to ambient temperature positioned near the forward and rearward end of said housing to retain the weight at their respective housing ends whenever ambient temperature is within a predetermined range, and means for effecting movement of the weight. When the weight is retained at the forward end of the housing, the hydroplane is tilted forwardly thereby causing oncoming water to react on the hydroplane to force the device to descend.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: March 21, 1978
    Inventor: Frederick W. Holstein
  • Patent number: 4008741
    Abstract: A nail set tool to facilitate driving a nail set and having a resilient body with a truncated conical projection, an upper surface for receiving the impact force from a hammer blow, a lower surface of the projection adapted for bearing engagement with the workpiece, and an elongate axial hole extending therethrough for holding the nail set. The resilient body is compressed by the force of the blow received by the upper surface thereof and resiliently opposes the impact force with increased resilient force during increased compression to effectively limit the travel of the hammer, thus preventing overdriving of the nail set. The resilient body also shields the workpiece from the hammer. A flexible blade attached to the projection facilitates employment of the tool in otherwise inaccessible areas. The nail set has a shank extending through the hole, a boss overlying the upper surface of the body, and a head for receiving the hammer blow.
    Type: Grant
    Filed: May 20, 1976
    Date of Patent: February 22, 1977
    Inventor: Frederick W. Holstein
  • Patent number: 4004624
    Abstract: A nail holder and a nail set holder used, in turn, to facilitate driving and setting, respectively, a finish nail, each having a resilient body with a truncated conical projection, an upper surface for receiving the impact force from a hammer blow, a lower surface of the projection adapted for bearing engagement with the workpiece, and an elongate axial hole extending therethrough for holding the element. The resilient body is compressed by the force of the blow received by the upper surface thereof and resiliently opposes the impact force with increased resilient force during increased compression to effectively limit the travel of the hammer, thus preventing overdriving of the element. The resilient body also shields the workpiece from the hammer. A flexible blade attached to the projection facilitates employment of the tool in otherwise inaccessible areas. In the nail holder, the resilient opposing force is applied to the hammer directly through engagement of the upper surface with the hammer head.
    Type: Grant
    Filed: July 31, 1975
    Date of Patent: January 25, 1977
    Inventor: Frederick W. Holstein