公开(公告)号：US10138111B2

公开(公告)日：2018-11-27

申请号：US15903530

申请日：2018-02-23

Applicant: Joseph Maynard Capra

Inventor： Joseph Maynard Capra

IPC: B67D7/22 ,  B67D7/36 ,  B67D7/08 ,  B67D7/46

Abstract: A mechanical system for calibration during a chemical feed process includes a ball valve that includes three openings. The ball valve is in communication with a lever, which when turned to a fill position, allows the filling of a drawdown cylinder for calibration. The ball valve automatically returns to its original default position within about a minute with a spring force automatically pushing it back to its start position.

公开(公告)号：US20180244512A1

公开(公告)日：2018-08-30

申请号：US15903530

申请日：2018-02-23

Applicant: Joseph Maynard Capra

Inventor： Joseph Maynard Capra

IPC: B67D7/22 ,  B67D7/36 ,  B67D7/08

CPC classification number: B67D7/222 ,  B01J4/008 ,  B01J4/02 ,  B67D7/085 ,  B67D7/362 ,  B67D7/46 ,  F16K11/0873 ,  F16K21/06 ,  F16K31/535 ,  F16K31/602

Abstract: A mechanical system for calibration during a chemical feed process includes a ball valve that includes three openings. The ball valve is in communication with a lever, which when turned to a fill position, allows the filling of a drawdown cylinder for calibration. The ball valve automatically returns to its original default position within about a minute with a spring force automatically pushing it back to its start position.