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Title: Universal plunger for oil well pumps

Patent ·
OSTI ID:7112882

This patent describes a universal plunger disposed for sealing reciprocation in the barrel of an oil well pump. It comprises an elongated plunger body having a longitudinal bore; a first bevel provided on one end of the plunger body; at least one first seal set provided on the one end of the plunger body and terminating the first level and a first polyurethane combination high pressure and wiper seal provided in the first seal seat for sealing the one end of the plunger body in the barrel; a second bevel provided on the opposite end of the plunger body.

Assignee:
NOV; NOV-92-037028; EDB-92-139294
Patent Number(s):
US 5120203; A
Application Number:
PPN: US 7-604195
OSTI ID:
7112882
Resource Relation:
Patent File Date: 29 Oct 1990
Country of Publication:
United States
Language:
English

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