Patents by Inventor David Lee Kaehler

David Lee Kaehler 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).

  • System for enabling handicapped individuals to use gasoline dispensers
    Patent number: 6087954
    Abstract: A system for assisting handicapped individuals in operating gasoline dispensers which includes a transponder in which data is stored according to the specific gasoline requirements of the individual. A transceiver is located proximate the gasoline dispenser and interrogates the transponder to obtain such stored data, and generates a signal which is a function of the stored data that is transmitted to a computer which receives the signal and generates predetermined control signals for operating the gasoline dispenser. The system may also include a warning signal device activated by the transponder to notify an attendant that the handicapped individual is approaching and this device may include a read-out device which displays predetermined personal information relating to the handicapped individual.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: July 11, 2000
    Assignee: Marconi Commerce Systems Inc.
    Inventors: John Steven McSpadden, David Lee Kaehler, Timothy Earle Dickson