Patents by Inventor William A. Tower

William A. Tower 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).

  • Method of illuminating and providing emergency egress guidance for hazardous areas
    Patent number: 5412544
    Abstract: A method for illuminating explosive, flammable, and other hazardous environments. The method employs electroluminescent lights heaving controlled dielectric strength and capacitance, which when matched with the low current and voltage from an intrinsically safe power supply, and the controlled capacitance of each lighting circuit, produces an emergency lighting system which is both safe and effective.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: May 2, 1995
    Assignees: Loctite Luminescent Systems, Inc., The MTL Instruments Group plc
    Inventors: Donald E. Derrick, Hollis A. Harris, Robert H. Marion, William A. Tower, L. Christopher Towle
  • Infra-red emitting electroluminescent lamp structures
    Patent number: 4857416
    Abstract: A structure for providing electromagnetic wave energy primarily in the near infra-red region of the spectrum and having an electroluminescent lamp element which includes a red fluorescent dye material for emitting energy in both the visible and the near infra-red regions of the spectrum, and at least one layer of optical filter material having selected color filter characteristics for transmitting electromagnetic wave energy therefrom in a manner such that the amount of energy transmitted in the near infra-red region is substantially increased and the amount of energy transmitted in the visible region is substantially decreased.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: August 15, 1989
    Assignee: Loctite Luminescent Systems, Inc.
    Inventors: William H. Kreiling, William A. Tower