Apparatus for the dosing of a pulverulent solid material
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United States of America Patent
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Dec 27, 1988
Issued Date -
N/A
app pub date -
Mar 14, 1988
filing date -
Feb 21, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A controlled coupling action between a distributor element and a rotary diaphragm is to be provided in an environment exposed to dust and powder within a dosing apparatus into which all kinds of materials, such as abrasive and chemically aggressive substances, but also materials intensifying sliding or adhesion properties are introduced for dosed delivery. To that end there are provided elastic form-locking coupling elements which, under increasing load, momentarily disengage the rotary connection between the distributor element and the rotary diaphragm. A preferred material pairing for the elastic form-locking coupling elements is metal, such as stainless steel, and polytetrafluoroethylene known as Teflon.
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