Improved plunger for a sucker rod pump

Details Improved plunger for a sucker rod pump Improved plunger for a sucker rod pump

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 47/12 (2006.01)

Patent

CA 2618434

An improved plunger has a north end, a south end, and a center region therebetween. A first northward angled shoulder is provided proximate the north end, for catching solids and preventing them from damaging an exterior of the plunger below the shoulder and potentially other pump components. In one embodiment, first and second northward angled shoulders are provided proximate the north end. First and second southward angled shoulders may be provided proximate the south end, making the plunger invertible when the north end becomes worn. The plunger may be comprises of separable regions, having different hardnesses. In one embodiment, the shoulders may provide a tapered outside diameter for the plunger.

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