Patents by Inventor Richard C. Bergman

Richard C. Bergman 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 for enriching a middle isotope using vibration-vibration pumping
    Patent number: 4801365
    Abstract: Method for producing isotopically enriched material by vibration-vibration excitation of gaseous molecules wherein a middle mass isotope of an isotopic mixture including lighter and heavier mass isotopes preferentially populates a higher vibrational mode and chemically reacts to provide a product in which it is enriched. The method can be used for vibration-vibration enrichment of .sup.17 O in a CO reactant mixture.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: January 31, 1989
    Assignee: The United States of American as represented by the United States Department of Energy
    Inventors: Joseph W. Rich, Gregory F. Homicz, Richard C. Bergman
  • Molecular laser operating on fundamental and overtone bands
    Patent number: 4194169
    Abstract: Laser output from the fundamental, first overtone, and second overtone transitions in CO is achieved in a supersonic flow laser using an electric-discharge-excited CO/He/O.sub.2 mixture.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: March 18, 1980
    Assignee: Calspan Corporation
    Inventors: Joseph W. Rich, Richard C. Bergman
  • Method for the initiation of chemical reactions by low pressure optical pumping
    Patent number: 4142955
    Abstract: When using CO as the absorbing and lasing species for vibration-vibration energy transfer and subsequent vibration-vibration pumping, CO can be made to dissociate and subsequently form C.sub.2 with isotope separation, or CO may be made to chemically react with N.sub.2 to produce CN with isotope separation.
    Type: Grant
    Filed: September 14, 1977
    Date of Patent: March 6, 1979
    Assignee: Calspan Corporation
    Inventors: Joseph W. Rich, Richard C. Bergman, Charles E. Treanor
  • Gaseous discharge stabilization apparatus and method
    Patent number: 4132961
    Abstract: The electrical and mass efficiencies of an electrically excited flowing gas laser are improved by lining the discharge tube with a filler which minimizes the regions of slow or recirculating gas flow, and by utilizing a wire anode gas injector to feed laser gases into the discharge.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: January 2, 1979
    Assignee: Calspan Corporation
    Inventor: Richard C. Bergman
  • Tubing articles
    Patent number: 3996968
    Abstract: A tubing article is fabricated from a fluid permeable fibrous plexifilamentary polyolefin material having a porosity .epsilon. of 0.5 to 0.7, a contact angle of greater than 85.degree., and a Gurley-Hill porosity in the range of 4 to 70 sec/100 cc.The tubing is particularly useful in sub-surface and trickle or drip type irrigation systems used in agriculture.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: December 14, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Richard C. Bergman, Kenneth R. Williams