Patents Assigned to Power Plus, Inc.
  • Patent number: 4884017
    Abstract: A recharging network for a solar powered construction light, including a solar powered battery, that recharges a storage battery at a constant rate and can be selectively operated to burn the light continuously to produce a continuous light or to burn intermittently to provide a flashing light. The network allows a solar cell to recharge the storage battery when sunlight is impinging upon the solar cell to provide virtually maintenance free and long term operation of the construction light during the dark or twilight hours when construction lights are commonly employed to warn motorists of road hazards.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: November 28, 1989
    Assignee: Power Plus, Inc.
    Inventor: Lloyd E. Williams
  • Patent number: 4843525
    Abstract: A solar powered illuminated yard maker including a solar powered battery recharging network that recharges a storage battery at a constant rate and can be selectively operated to burn continuously to produce a continuous light or to burn intermittently to provide a flashing light. A solar cell recharges the storage battery in the light when sunlight is impinging upon the solar cell to provide virtually maintenance free and long term operation of the illuminated yard marker during the dark or twilight hours.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: June 27, 1989
    Assignee: Power Plus, Inc.
    Inventor: Lloyd E. Williams
  • Patent number: 4751622
    Abstract: A solar powered construction light including a solar powered battery recharging network that recharges a storage battery at a constant rate and can be selectively operated to burn continuously to produce a continuous light or to burn intermittently to provide a flashing light. A solar cell recharges the storage battery in the light when sunlight is impinging upon the solar cell to provide virtually maintenance free and long term operation of the construction light during the dark or twilight hours when construction lights are commonly employed to warn motorists of road hazards.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: June 14, 1988
    Assignee: Power Plus, Inc.
    Inventor: Lloyd E. Williams