Patents by Inventor Francis J. Zelina, Jr.

Francis J. Zelina, Jr. 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: 4605993
    Abstract: A battery operated lamp and battery charger are disclosed. The lamp is equipped with a rechargeable battery and a battery charger stand. The lamp has a lamp support surface with a center terminal, and a second terminal spaced from the center which engages the center terminal and second terminal respectively on the lamp. Thus the two lamp terminals will engage the two respective charge terminals regardless of the position of orientation in which the lamp is placed on the charger. The charger circuit is powered from a power cord connected to a power line through a transformer a full wave rectifier to charging lines. These diodes and a switch are connected in parallel with two diodes. The lamp battery to be charged is connected in parallel with the charging lines. Thus, with the switch closed, the charging voltage is reduced to desired value by a voltage drop caused by the resistor and the three diodes in parallel with the battery.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: August 12, 1986
    Assignee: Lighting Systems, Inc.
    Inventor: Francis J. Zelina, Jr.
  • Patent number: 4233655
    Abstract: A spotlight having a generally cylindrical housing with an integral radially extending pistol grip handle at one end, a cord retractor in the rear and a seal beam light closing the open end of the cylindrical housing. The lamp is held in a shock absorbing position by projections on the housing and an integral trigger connected to the housing through a living hinge actuates the switch to turn the light on and off. A trigger lock holds the light "on" and the trigger guard prevents the trigger from being turned on inadvertently. An improved cord holder is provided which utilizes a pinch connection.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: November 11, 1980
    Assignee: Lighting Systems, Inc.
    Inventors: Francis J. Zelina, Jr., John H. Zelina, Jr.