Load beam unit replaceable inserts for dry coal extrusion pumps

(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).