Test plug assembly and method for pressure testing the inlet connection for liquid jet floor outlet fittings
US4122592A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1977 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Feb 28, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49764
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A test plug assembly for insertion into a housing for preventing liquid under pressure from flowing therethrough includes an assembly body with an undersurface shaped and dimensioned to mate with a shaped upper portion of the housing. A plurality of flanges which project from the outer surface of the body are located and spaced apart so that the studs can pass between the flanges when the body is inserted into the housing and so that the uppermost surface of the flanges will engage the lowermost surface of the studs when the shaped upper portion and undersurface are in contact and the body is rotated relative to the housing. The body further includes a gripper for gripping the body so it can be rotated into engagement with the housing. A method of pressure testing a fitting for a liquid inlet includes the steps of installing an inlet fitting on a pipe which is located beneath the underwater surface and which communicates with a source of liquid under pressure, mounting a liquid jet housing on the fitting by forming a leak proof connection between the fitting and housing, inserting a removable plug into the housing which is capable of preventing liquid from passing through the housi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.