Patent · US Expired

Metering pump

US4715795A · kind A · utility

3Cited by

3References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Reiner Habrich · Tauberbischofsheim, DE
Manfred Bauer · Roßtal, DE
Alois Reiter · Birkenfeld, DE

Key dates

Filing date	Jan 31, 1986
Grant date	Dec 29, 1987
Priority date	—
Expiry date	Jan 31, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87121
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In order to enable a conveying from a vacuum into a vacuum when metering liquid components of reaction resin compounds, a metering pump comprising a reciprocating displacement member is employed wherein the intake valve and the discharge valve are fashioned as dish valves controllable from the outside in constrained fashioned including valve stems coaxially seated in the pump head. No noteworthy wear of the valves occurs even when metering liquid components of reaction resin compounds having abrasive fillers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.