Patents by Inventor Michael L. Prelec

Michael L. Prelec 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: 7583051
    Abstract: A battery charger casing for providing increased protection from impact, corrosion and moisture intrusion. The present invention includes a rigid shell in the shape of a vehicle that is secured to a bottom plate forming a protective void to house the electrical circuitry. A plurality of struts is interposed between the bottom plate and the electrical circuitry so that any impact force sustained by the casing is isolated to the struts. An epoxy material encapsulates the electrical circuitry within the protective void providing increased impact protection, heat dissipation and weather proofing characteristics.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: September 1, 2009
    Inventor: Michael L. Prelec, Sr.
  • Patent number: 7554286
    Abstract: A battery charger casing for providing increased protection from impact, corrosion and moisture intrusion. The present invention includes a shell that is secured to the casing forming a protective void to house the electrical circuitry. An epoxy material encapsulates the electrical circuitry within the protective void providing increased impact protection, heat dissipation and weather proofing characteristics.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: June 30, 2009
    Inventor: Michael L. Prelec, Sr.
  • Patent number: 7245473
    Abstract: The switchable lightning-arrester system has a safety-switchable connector (10), which, for differing power-line features, can include optionally a counter-lever safety connector (14), a slide safety connector (40), a hinged safety connector (56) and a pivot safety connector (67) intermediate a power line (11) and a lightning arrester (1) for on-spot disconnection to protect workers from self-destructing arresters when changing lightning arresters or working on damaged lines without costly, time-consuming and power-disruptive shutdown of power lines. This is highly important because the lightning arresters are changed and repair work is done on damaged lines as quickly after self-destruction from lightning surges as possible requiring the change and repair. The safety-switchable connectors are made to be operable and changeable from a safe distance remotely, which is preferably from a ground position near a light pole, a transformer or other line support (9).
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: July 17, 2007
    Inventor: Michael L. Prelec
  • Patent number: 5793185
    Abstract: A jump starter has a hand-held charger case (1) that contains an internal battery (8), a battery charger (7), connections and controls that provide a needed variety of foolproof and convenient care of external batteries (9) such as vehicle batteries. Control components and circuits are provided to prevent overcharging and incorrect connection to batteries and to allow an external battery to be charged directly by the charger or by the internal battery. Cables, connections and controls allow the charger to accept AC electricity through an AC input cord (3) or DC electricity through a DC input cord (4) and respective converters (5, 6). Jump-start cables (27, 28, 29) with clamp connections (30) are positioned on opposite sides (34, 37) of the charger case and supportable by covered nonconductive cleat-support members (30, 31) to prevent contact with each other or with other objects when not in use. The AC input cords and DC input cords are positioned on opposite sides of the case for additional safety.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: August 11, 1998
    Assignee: Deltona Transformer Corporation
    Inventors: Michael L. Prelec, Lawrence W. Gordon
  • Patent number: D538224
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: March 13, 2007
    Inventor: Michael L. Prelec, Sr.
  • Patent number: D549645
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: August 28, 2007
    Inventor: Michael L. Prelec, Sr.