Plug assembly for sealing a pressure fluid passage in a manifold or the like
US4421137A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1981 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | Feb 2, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4994
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A plug assembly comprising a generally cylindrical expansion sleeve having a socket portion which receives a wedging nut. One of the nut and socket portion is tapered such that the sleeve may be radially expanded as the nut enters more deeply into the socket portion. A screw element is threadedly received by the nut and by a clearance opening through the sleeve. The screw element is provided with a head which engages the sleeve on the side axially opposite the socket portion whereby threading of the screw element into the nut draws the latter more deeply into the socket portion. The outer periphery of the sleeve is preshaped to be out-of-round to provide for an interference fit with a cylindrical bore which is to be plugged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.