Rotationally orientable fluid handling devices
US6203071A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1998 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Nov 30, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L43/008
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Fluid handling devices comprise a body having a fluid passage therethrough and a fluid inlet and outlet at passage ends. The body is formed from a non-metallic material in a number of different forms, e.g., pipe fittings, pipes, valves and the like. The body includes weldable stubs that extend outwardly therefrom that are designed to facilitate welded attachment with the weldable stubs of an adjacent fluid handling device. To facilitate accurate rotational positioning of the device vis-a-vis other adjacent devices, one or more alignment marks are positioned along the device surface. The alignment marks are positioned on the device to provide an indication of rotational position of the device about an axis running through at least one of the weldable stubs. In one embodiment, the alignment marks are integral with and placed along an outside surface of the device body. In another embodiment, the alignment marks are integral with and placed along an outside surface of the weld stubs. The number of alignment marks placed on the fluid handling device can vary depending on the particular fluid handling device geometry and application. Devices of this invention can also include stubs that…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.