Patent · US Active

Spring return actuator for rotary valves

US11731243B2 · kind B2 · utility

0Cited by

51References

14Claims

0Family size

Assignee

Cold Jet, LLC · US

Inventors

Daniel Mallaley · Cincinnati, US
Richard Joseph Broecker · Milford, US

Key dates

Filing date	Oct 31, 2022
Grant date	Aug 22, 2023
Priority date	—
Expiry date	Oct 31, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24C7/0061
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An actuator is configured to couple with a controlled member and includes first and second pistons disposed in respective internal chambers. The first piston may be moveable between first and second positions. The second piston may be moveable between third and fourth positions. The second piston may be configured not to engage the first piston when the second piston is disposed at the third position. The second piston may be configured to move the first piston to the second position as the second piston moves from the third position to the fourth position. A resilient member may be disposed to resiliently urge the second piston toward the fourth position.

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