US Patent Issued to Tefen Flow and Dosing Technologies on March 17 for "Proportional additive dosing pump with bidirectional rolling diaphragm" (Israeli Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,946, issued on March 17, was assigned to Tefen Flow and Dosing Technologies LTD. (Kibbutz Nachsholim, Israel).

"Proportional additive dosing pump with bidirectional rolling diaphragm" was invented by Zvi Weingarten (Evron, Israel) and Gideon Sagi (Kfar Vradim, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic proportional additive dosing pump (ADP) has a plunger associated with an actuator rod and displaceable along a cylinder. A bidirectional roll diaphragm is deployed between an internal surface of the cylinder and an outer surface of the plunger so as to form a rolling seal between upper and lower chambers of the cylinder. An add...