(19)
(11)EP 2 479 432 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
08.08.2012 Bulletin 2012/32

(43)Date of publication A2:
25.07.2012 Bulletin 2012/30

(21)Application number: 12151728.8

(22)Date of filing:  19.01.2012
(51)Int. Cl.: 
F04B 19/20  (2006.01)
B65G 37/00  (2006.01)
F04D 33/00  (2006.01)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30)Priority: 21.01.2011 US 201113010904

(71)Applicant: Pratt & Whitney Rocketdyne Inc.
Canoga Park, CA 91309 (US)

(72)Inventors:
  • Saunders, Timonthy
    Canoga Park, CA California 91309 (US)
  • Brady, John D.
    Canoga Park, CA California 91309 (US)

(74)Representative: Leckey, David Herbert 
Dehns 10 Salisbury Square
London Greater London EC4Y 8JD
London Greater London EC4Y 8JD (GB)

  


(54)Load beam unit replaceable inserts for dry coal extrusion pumps


(57) A track assembly (28A) for a particulate material extrusion pump (10) includes a link assembly (30) with a roller bearing (34). An insert (76) is mounted to a load beam (18A) located such that the roller bearing (34) contacts the insert (76).