Patents by Inventor Peter D. Bogart

Peter D. Bogart 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).

  • Irreversible digital counter and odometer
    Patent number: 3949202
    Abstract: The invention consists of an improved method of constructing and installing digital counting devices, such as odometers, digital time recorders and digital gauges, consisting of a self-destructing and tamperproof "first" or left counting wheel. The numeral of the "first" counting wheel is obliterated by mechanical (or other) means after such numeral has passed the viewing window, thereby making it useless to attempt to "wheel back" the counter to indicate lesser usage, and thereby promoting safety and honesty to and by user, seller and buyer of the machines or devices to which the digital counter is attached. Such improved counters are practically irreversible.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: April 6, 1976
    Inventor: Peter D. Bogart
  • Irreversible digital counter and odometer
    Patent number: 3949201
    Abstract: The invention consists of an improved method of constructing and installing digital counting devices, such as odometers, digital time recorders and digital gauges, consisting of a self-destructing and tamperproof "first" or left counting wheel. The numeral of the "first" counting wheel is obliterated by mechanical (or other) means after such numeral has passed the viewing window, thereby making it useless to attempt to "wheel back" the counter to indicate lesser usage, and thereby promoting safety and honesty to and by user, seller and buyer of the machines or devices to which the digital counter is attached. Such improved counters are practically irreversible.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: April 6, 1976
    Inventor: Peter D. Bogart