Patents Represented by Law Firm Finnegan, Henderson, Farabo, Garrett & Dunner
  • Patent number: 7288620
    Abstract: The present invention relates to-a process and a device for the continuous manufacture of a polymer of an aromatic alkylene monomer e.g. styrene comprising a bulk polymerisation of the monomer and a devolatilization of the resulting polymer in at least two successive steps so as to separate the polymer from the unreacted monomer and the oligomers formed during the polymerisation. The process comprises conveying a first gas stream resulting from the first step of the devolatilization into a first zone Z1 for direct condensation and fractionation, removing a gas stream G1 comprising essentially the monomer from the top of Z1, and removing a liquid stream L1 rich in oligomers from the bottom of Z1, a portion of L1 being taken, cooled and then returned into Z1.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: October 30, 2007
    Assignee: Ineos Europe limited
    Inventor: Jean-Marc Galewski
  • Patent number: 7009317
    Abstract: A cooling system for an electric motor includes a cooling duct formed between a cooling jacket and a separate component surface. The separate component surface may define at least a portion of a wall of the cooling duct. The cooling duct may be configured to direct a cooling liquid along at least a portion of the separate component surface and draw heat from the electric motor. An inlet port may be in fluid communication with the cooling duct. The inlet port may be configured to receive the cooling liquid and to introduce the cooling liquid to the cooling duct. An outlet port may be in fluid communication with the cooling duct.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: March 7, 2006
    Assignee: Caterpillar Inc.
    Inventors: Michael G. Cronin, Trevor Neal Iund
  • Patent number: D400895
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: November 10, 1998
    Assignee: Buhler AG
    Inventor: Georg Schrepfer