Patents by Inventor Mitchel D. Trostad

Mitchel D. Trostad 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: 8978221
    Abstract: A puller device for pulling bearings, gears, wheels and pulleys from objects such as shafts and axles and other machine parts. The puller device includes a jaw support assembly; jaw members being in operable communication with the jaw support assembly; a jaw actuating assembly being supported by the jaw support assembly and including a jaw guide member being in operable communication with the jaw members; and an elongate push member being adjustable relative to and in operable communication with the jaw support assembly for urging against an object to facilitate the removal of a press fitted work piece.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 17, 2015
    Inventors: Dean S. Somerville, Mitchel D. Trostad
  • Patent number: 5542320
    Abstract: An accessory (10) for a wrench socket (12) is disclosed including a generally cylindrical magnet (32) secured to a generally cylindrical, nonmagnetic, compressible disk (26). Specifically, the magnet (32) is received in a recess (46) formed in the disk (26) and secured to the disk (26) by a layer (60) of a size larger than and extending over the face (36) of the magnet (32) and integrally secured around its entire periphery to the face (44) of the disk (26). The disk (26) snuggly fits within the well (14) and magnetically insulates the magnet (32) from the socket (12). The magnet (32) has a size smaller than the well (14) and is generally concentric within the well (14), with an air space being created between the magnet (32) and the well (14) for magnetically insulating the magnet (32) from the socket (12) in the most preferred form.
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: August 6, 1996
    Assignee: Vasichek Enterprises LLC
    Inventors: Richard A. Vasichek, Robert J. Vasichek, Dean S. Somerville, Mitchel D. Trostad
  • Patent number: 5251368
    Abstract: This invention relates to an internal locking puller device which comprises three pivotally mounted jaws, a cam ring which engageably slides along the jaws for camming together and apart the jaws for locking about bushings, bearings, seals, and the like, a disk-like collar to which the jaws are pivotally mounted, a T handle for adjustably controlling the movement of the cam ring, a slide rod, and a slide hammer slidably and reciprocally mounted on said slide rod for providing impacting force to remove the bushings, bearings, seals, and the like. The jaws have arcuate rearward portions with a pair of arcuate rails integrally extending from and along under edges thereof. The rails conform to the configuration of the arcurate rearward portions of the jaws so as to provide uniform locking strength across the jaws to virtually eliminate slippage of the jaws from internally about bushings, bearings, seals, and the like.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: October 12, 1993
    Inventors: Dean S. Somerville, Mitchel D. Trostad
  • Patent number: D369075
    Type: Grant
    Filed: January 25, 1995
    Date of Patent: April 23, 1996
    Assignee: Vasichek Enterprises LLC
    Inventors: Richard A. Vasichek, Robert J. Vasichek, Dean S. Somerville, Mitchel D. Trostad