In-line shut-off valve
US4173328A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1978 |
| Grant date | Nov 6, 1979 |
| Priority date | — |
| Expiry date | May 5, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/0435
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A positive-action non-leaking shut-off valve that requires minimal arcuate movement of the manual actuator from full-open to full-closed position is provided by three major components. A valve housing has a water-flow channel therethrough along its longitudinal axis and a cylindrical bore through said valve housing transversal to said water-flow channel. A lever-actuated valve shaft fits snugly into said bore. The valve shaft carries a plug therein that is centered for rotation about the centerline of the bore through the housing. The plug stoppers the water-flow channel when it is rotated against the openings that the water-flow channel makes with the cylindrical bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.