Multiport selection valve
US5419208A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Jan 29, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86549
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multiport selection valve which is biocompatible and can be used at pressures of up to 2000 psi is described. A housing made of a polymer such as polyetheretherketone has a plurality of selection ports and a common port. Located within the housing and the end at which the ports are located is a rotor seal. Located within and adjacent to the rotor seal is a rotor tip. The rotor tip has a passageway therethrough to allow fluid communication between the desired selection port and the common port. In the preferred embodiment of the invention, the housing rotor seal and the rotor tip are made of synthetic polymers which are biocompatible. The valve also includes a rotor to which a knob is attached, thus allowing an operator to select a particular selection port. In an alternative embodiment, the valve of the present invention can be attached to a bulkhead and an actuator, thereby allowing automatic operations in accordance with programmed instructions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.