Drain vent for petrochemical/chemical fluid pumping device and method of making the same

(19)

(11)

EP 2 711 550 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	25.02.2015 Bulletin 2015/09

(43)	Date of publication A2:
	26.03.2014 Bulletin 2014/13

(21)	Application number: 13185843.3

(22)	Date of filing: 24.09.2013

(51)

International Patent Classification (IPC):

F04B 53/16^(2006.01)
F04B 53/04^(2006.01)

F04B 53/22^(2006.01)
F04B 53/06^(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:

25.09.2012 US 201261705410 P

(71)	Applicant: Roy E. Roth Company
	Milam, IL 61264 (US)

(72)	Inventors:
	ROTH, Peter P. Illinois 61281 Sherrard (US) ROTH, Paul E. Illinois 61262 Lynn Center (US)

(74)	Representative: Hanson, William Bennett et al
	Bromhead Johnson Sovereign House 212-224 Shaftesbury Avenue London WC2H 8HQ London WC2H 8HQ (GB)

(54)	Drain vent for petrochemical/chemical fluid pumping device and method of making the same

(57) A fluid pumping device 10 for use in the petroleum and/or chemical industries includes a cast fluid housing 11 having an inlet 13 to or an outlet 13 from the fluid pumping device, a drain/vent tubular connection 12 extending through the cast fluid housing to communicate with the inlet to or the outlet of the fluid pumping device and a flange adapter 20 sealingly secured to the cast fluid housing 11. A method of providing a drain/vent tube 12 to structurally communicate with an inlet 13 to or the outlet 13 from a fluid pumping device is disclosed.

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