Patents by Inventor Gerald L. Erickson

Gerald L. Erickson 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).

  • Dynamic pulse difference circuit
    Patent number: 4103148
    Abstract: A digital electronic circuit of especial use for subtracting background activity pulses in gamma spectrometry comprises an up-down counter connected to count up with signal-channel pulses and to count down with background-channel pulses. A detector responsive to the count position of the up-down counter provides a signal when the up-down counter has completed one scaling sequence cycle of counts in the up direction. In an alternate embodiment, a detector responsive to the count position of the up-down counter provides a signal upon overflow of the counter.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: July 25, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Gerald L. Erickson
  • Method and means of monitoring the effluent from nuclear facilities
    Patent number: 3982129
    Abstract: Radioactive iodine is detected in the effluent cooling gas from a nuclear reactor or nuclear facility by passing the effluent gas through a continuously moving adsorbent filter material which is then purged of noble gases and conveyed continuously to a detector of radioactivity. The purging operation has little or no effect upon the concentration of radioactive iodine which is adsorbed on the filter material.
    Type: Grant
    Filed: November 22, 1974
    Date of Patent: September 21, 1976
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Kenneth R. Lattin, Gerald L. Erickson