Patents Assigned to Guild Associates, Inc.
  • Patent number: 5370692
    Abstract: Prosthetic bone implants are fabricated to approximately replicate a patient's original bone. Medical computer aided imaging techniques are applied to generate a data base representing the size and shape of the original bone in a three dimensional coordinate system. The implantable replica is fabricated using the data base and free form manufacturing to sequentially solidify adjoining, cross-sectional intervals of a fluid material. Appropriate fluid materials include ceramic particles which may be selectively bonded by sintering or bonding with a polymer, and a monomer which is polymerized at selected regions by an incident laser beam.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: December 6, 1994
    Assignee: Guild Associates, Inc.
    Inventors: David J. Fink, Salvatore T. DiNovo, Thomas J. Ward
  • Patent number: 4951474
    Abstract: A mechanical refrigeration process in which two or more systems are connected in series to provide successively lower temperature levels. Each system utilizes mixtures of refrigerants and/or inert gases having different boiling points. The mixture is compressed to a suitable pressure and compression heat is rejected to the environment. The mixture is cooled by heat exchange with mixture returning to the compressor. The liquid and gas phases are separated and the separated gas mixture is further cooled to form liquid, by heat exchange with mixture returning to the compressor. The liquid is expanded to a given lower pressure to achieve the desired low temperature. The expanded fluid absorbs heat to provide refrigeration. The liquid expanded to the lower pressure is mixed with the used fluid which absorbed heat to provide refrigeration. The capacity of the system is controlled by throttling the compressor suction.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: August 28, 1990
    Assignee: Guild Associates, Inc.
    Inventors: Salvatore T. DiNovo, John Schlaechter, Roy S. Brown
  • Patent number: 4850199
    Abstract: Multiple refrigeration systems, each with refrigerants having a different boiling point, are connected in series to provide successively lower temperatures. Following compression and heat rejection, the refrigerant mixture is cooled by heat exchange with refrigerant returning to the compressor. Gas and liquid phases are separated and the gas is cooled further by heat exchange with mixture returning to the compressor. System capacity is controlled by throttling the compressor suction.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: July 25, 1989
    Assignee: Guild Associates, Inc.
    Inventors: Salvatore T. DiNovo, John Schlaechter, Roy S. Brown
  • Patent number: 4534346
    Abstract: An improved pressure swing adsorption cycle which is preferably useful for the continuous production of a relatively minor amount of a purified gas, and a method which is useful to provide a continuous therapeutic supply of oxygen at a level required by an individual patient for the treatment of chronic obstructive pulmonary diseases and other health conditions.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: August 13, 1985
    Assignee: Guild Associates, Inc.
    Inventor: John Schlaechter