Packing gland leak retriever device
US4017214A · kind A · utility
Inventor
Key dates
| Filing date | Nov 25, 1974 |
| Grant date | Apr 12, 1977 |
| Priority date | — |
| Expiry date | Nov 25, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/164
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a leak retriever for the packing gland on oil well pumps. The leak retriever has a reservoir disposed about the packing gland to collect oil which leaks through the gland and an auxiliary pump which is mounted in the reservoir and connected to pump all oil collected back into the discharge line for the well. The auxiliary pump is mounted in the reservoir so that any leaks from the auxiliary pump are also collected by the reservoir, and is driven by a plate on the polish rod of the well pump driving apparatus. In the first form the reservoir is clamped onto the packing gland housing below the cap nut, and in the second form it is made integral with the cap nut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.