Pump plunger protective packaging
US11149728B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2019 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Mar 18, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B15/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for installing replacement plungers in plunger pumps used in the hydrocarbon industry includes an elongated, cylindrical plunger body with an elongated circular tube disposed around the cylindrical plunger body. An end wall having an aperture encloses one end of the tube with an axially movable plate adjacent the end wall between the end wall and an end of the plunger body. A removable cap is mounted to the opposite end of the tube to enclose the plunger body within the tube. The outer diameter of the tube fits in the plunger bore of a pump. To install the replacement plunger, the cap is removed and the tube is inserted into the plunger bore until the tube abuts packing within the tube. Once positioned, an axial force is applied to the movable plate to urge the plunger body from the tube and into engagement with the packing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.