Patents Represented by Attorney James F. Powers, Jr.

Find this attorney in the Justia Lawyer Directory

  • Apparatus for pelletizing plastic material
    Patent number: 4080134
    Abstract: The specific embodiments provide for pelletizing plastic material in a system including a device for compacting the plastic material through a plurality of orifices. Air is vented from the compacting device by a conduit, and a pressurized gaseous stream is supplied in the conduit in a direction away from the compacting device. A signal is generated indicative of the temperature of a portion of the compacting device, and the flow rate of gaseous stream is controlled in response to the signal.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: March 21, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Adrian O. Klaeysen, Lester A. Lehman, Ivan R. Witty
  • Method of pelletizing plastic material
    Patent number: 4000232
    Abstract: Method for cooling and pelletizing thermoplastic material including compacting the plastic material through a plurality of orifices. Air is vented from the compacting device by a conduit, and a pressurized gaseous stream is supplied in the conduit in a direction away from the compacting device. A signal is generated indicative of the temperature of a portion of the compacting device, and the flow rate of gaseous stream is controlled in response to the signal.
    Type: Grant
    Filed: September 23, 1975
    Date of Patent: December 28, 1976
    Assignee: Mobil Oil Corporation
    Inventors: Adrian O. Klaeysen, Lester A. Lehman, Ivan R. Witty