04830284 is referenced by 68 patents and cites 16 patents.

A dosing or atomizing pump for liquid, creamy or pasty media has, in addition to its outlet valve provided on the pump chamber an additional valve provided in the pump operating pushbutton and closes the discharge opening directly at its mouth. By means of the hydraulic pressure, the additional valve body is operated by means of a differential piston. In a variant, the valve body can be a functional part of an atomizer nozzle. The additional valve prevents drying or other negative influencing of the medium in the discharge passage.

Title
Atomizing or dosing pump
Application Number
6/592076
Publication Number
4830284
Application Date
March 22, 1984
Publication Date
May 16, 1989
Inventor
Leo Maerte
Sipplingen
DE
Agent
Steele Gould & Fried
Assignee
Ing Erich Pfeiffer & Co KG
DE
IPC
G01F 11/00
B05B 9/043
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