A double acting cold trap equipped with a set of exhaust gas condensing fins and a set of exhaust gas condensing plates is disclosed. The invention also discloses a double acting cold trap that incorporates a deflecting plate to direct the exhaust gases over the condensing fins and plates in a serial fashion. This increases the efficiency of the collection of unwanted particles.
This is a division of patent application Ser. No. 10/053,332, filing date Jan. 18, 2002 now U.S. Pat. No. 6,528,420, Double Acting Cold Trap, assigned to the same assignee as the present invention.