Patent · US Active

Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies

US11555638B2 · kind B2 · utility

1Cited by

35References

17Claims

0Family size

Assignee

Dwyer Instruments, LLC · US

Inventors

Lars O. Rosaen · Plymouth, US
Peter E. Hackett · Belleville, US

Key dates

Filing date	Mar 26, 2020
Grant date	Jan 17, 2023
Priority date	—
Expiry date	May 21, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF25B2345/006
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Embodiments described herein are generally directed to a venturi valve. The venture valve includes an inlet; an outlet opposite of the inlet; a passage, a primary orifice, and an insert. The passage is positioned between the inlet and the outlet and fluidly coupling the inlet to the outlet. The primary orifice is positioned between the inlet and the outlet and in fluid communication with the passage such that the primary orifice permits fluid to enter the passage. The insert is positioned between the inlet and the outlet, the insert configured to enclose at least a portion of the passage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.