公开(公告)号：US3635601A

公开(公告)日：1972-01-18

申请号：US3635601D

申请日：1970-08-10

Applicant: ECONOMICS LAB

Inventor： LARSON SPENCER B ,  MILLER CARL A

IPC: B01F5/04 ,  D06F39/02 ,  F04F5/46 ,  G05D11/00 ,  F04F5/48

CPC classification number: F04F5/464 ,  B01F5/0421 ,  D06F39/022 ,  G05D11/006 ,  Y10T137/2521 ,  Y10T137/2569

Abstract: Apparatus including a dual product venturi aspirator and a failsafe diaphragm valve. A first venturi aspirator is utilized to draw a first additive (e.g. an alkaline cleanser) into a carrier liquid (e.g. water) flowing therethrough and, similarly, a second additive (e.g. a chlorinating agent) is drawn by a second venturi into a carrier liquid flowing therethrough. A fail-safe elastic diaphragm centrally mounted between the two aspirators and in communication therewith is operable thereby for automatically terminating the aspiration of either one of the two additives upon the exhaustion of the supply of the other additive, thereby assuring simultaneous injection of the two additives into a cleansing system. Fail-safe apparatus for providing simultaneous injection of three additives is also disclosed.

Abstract translation: 装置包括双重产品文丘里吸气器和故障安全隔膜阀。 使用第一文丘里抽吸器将第一添加剂（例如碱性清洁剂）吸入流过其中的载体液体（例如水）中，并且类似地，第二添加剂（例如氯化剂）被第二文丘里管吸入载液中 流过 中心安装在两个吸气器之间并与之连通的故障安全的弹性隔膜可操作，从而在其他添加剂的供应耗尽时自动终止两种添加剂中的任一种的抽吸，从而确保同时注射两种添加剂 进入清洁系统。 还公开了同时注入三种添加剂的故障安全装置。