Patents by Inventor John E. Celto

John E. Celto 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).

  • Patent number: 4262267
    Abstract: A pulsed laser emits laser energy by dissociative excitation of metal dihalide and cyclic recombination. A metal dihalide selected from subgroup II-B of the periodic table of elements is contained within an elongate sealed enclosure. Two elongate electrodes having external terminals are supported in parallel relationship within the enclosure, forming a gap parallel to the principal axis of the enclosure. A source of pulsed electric power is connected to the terminals of the two electrodes, producing repetitive transverse electric discharges across the gap. An inert buffer gas is included within the enclosure for aiding electric discharge uniformity, to provide vibrational relaxation of the lasing medium in its electronic states and to participate in the dissociative excitation process. The buffer gas is one of several mixtures of discrete percentages of neon and nitrogen.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: April 14, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Erhard J. Schimitschek, John E. Celto
  • Patent number: 4229711
    Abstract: A pulsed laser produces emitted laser energy by photodissociation of metal dihalide and cyclic recombination. A metal dihalide selected from sub-group II-B of the periodic table of elements is contained within an elongated sealed enclosure. Ultraviolet photons supplied from another laser employed as an excitation pump causes dissociation of the metal dihalide for achieving the ultimate laser action. An inert buffer gas is included within the enclosure for aiding photon energy transfer uniformity and to provide vibrational relaxation of the lasing medium in its electronic states. Two reflective surfaces, one of which is only partially reflective, are aligned with the principal axis of the laser assembly for producing an optical resonator for the emitted laser energy.
    Type: Grant
    Filed: August 23, 1978
    Date of Patent: October 21, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Erhard J. Schimitschek, John E. Celto, John A. Trias
  • Patent number: 4228408
    Abstract: A pulsed laser produces emitted laser energy by dissociative excitation of etal dihalide and cyclic recombination. A metal dihalide selected from subgroup II-B of the periodic table of elements is contained within an elongate sealed enclosure. Two elongate electrodes having external terminals are supported in parallel relationship within the enclosure, forming a gap parallel to the principal axis of the enclosure. A source of pulsed electric power is connected to the terminals of the two electrodes, producing repetitive transverse electric discharges across the gap. An inert buffer gas is included within the enclosure for aiding electric discharge uniformity, and to provide vibrational relaxation of the lasing medium in its electronic states.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: October 14, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Erhard J. Schimitschek, John E. Celto
  • Patent number: 4168475
    Abstract: A pulsed laser produces emitted laser energy by electron impact dissociation of metal dihalide and cyclic recombination. A metal dihalide selected from sub group II-B of the periodic table of elements is contained within an elongate sealed enclosure. Two elongate electrodes having external terminals are supported in parallel relationship within the enclosure, forming a gap parallel to the principal axis of the enclosure. A source of pulsed electric power is connected to the terminals of the two electrodes, producing repetitive transverse electric discharges across the gap. An inert buffer gas is included within the enclosure for aiding electric discharge uniformity, and to provide vibrational relaxation of the lasing medium in its electronic states.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: September 18, 1979
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Erhard J. Schimitschek, John E. Celto