Spool valve with offset outlet
US5064168A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1991 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Jan 23, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K3/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve includes a one-piece plastic body, and a plunger assembly inserted into the body from one end. The body includes a central cylindrical portion extending along a first axis, a tubular outlet portion extending along a second axis parallel to and offset from the first, so as to intersect the central portion only over a portion of the length of each, and a tubular inlet extending along a third axis perpendicular to the first axis and above the intersected portion thereof. An uninterruped 360.degree. band forming a seat remains between the outlet and the inlet. The plunger assembly includes a resilient, circumferential lip that engages the seat in the closed position of the valve, and a circumferential recess adjacent the lip, that permits fluid to flow through the valve in the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.