Tool loading device
US4705314A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1986 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | Apr 4, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/076
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tool loading device which enables a wireline tool to be presented vertically to a vertical lubricator comprises two sections--a centralizing hub which is connectable to the upper end of a tool entry system and a latch arm section which carries the tool. The centralizing hub has an entry in its upper surface and a projection and/or recess on its lower surface. The latch arm section comprises (a) a tube for carrying the tool, (b) latch arm pivot hub slidably mounted on the tube, (c) latch arms pivoted at one end of the latch arm pivot hub and bearing a lug at the other end adapted for engagement with the projection and/or recess on the centralizing hub, (d) latch arm engagement rams pivotably mounted at one end to the latch arm pivot hub and at the other to a pivot point on the latch arm, and (e) vertical alignment rams connecting the latch arm pivot hub to the centralizing hub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.