VALVE LOCKOUT

• US 20200132215A1
• Filed: 10/24/2019
• Published: 04/30/2020
• Est. Priority Date: 10/24/2018
• Status: Active Grant

• Current Assignee: DeZURIK Inc.
• Original Assignee: DeZURIK Inc.
• Inventors: Neu, Steven K.
• Granted Patent: US 11,649,908 B2
• Time in Patent Office: Days
• CPC Class Codes: F16K 27/0218 Butterfly valves
• CPC Class Codes: F16K 35/10 with locking caps or locking bars
• CPC Class Codes: Y10T 137/7256 Locks against rotary motion
• CPC Class Codes: Y10T 70/5619 Locked stationary

Abstract

The present disclosure relates to valve lockout systems, including valve lockout systems for use with an actuator and butterfly valves. The lockout system allows controlled access to operation of the valve, either to prevent intentional or unintentional operation of the valve. Thus, the lockout system prevents the unauthorized opening or closing of the valve. The lockout system includes a lockout plate in which a lockout bar is positioned. The lockout bar includes a surface containing a recess. Depending upon the location of the recess the valve shaft can be opened or closed.

Claims

1. A valve lockout assembly, the valve lockout assembly comprising:

a) a plate;

b) a lockout bar retained by the plate;

wherein the lockout bar has at least two positions;

a first position where a valve shaft rotation is prevented, and a second position wherein valve shaft rotation is not prevented.

2. The valve lockout assembly of claim 1, wherein the plate includes a slot for retaining the lockout bar.

3. The valve lockout assembly of claim 1, wherein the plate further includes an opening for a valve shaft.

4. The valve lockout assembly of claim 3, wherein the lockout bar includes a recess, wherein when the recess is adjacent to the valve shaft the valve shaft can rotate.

5. The valve lockout assembly of claim 3, wherein the lockout bar includes a recess, wherein when the recess is not adjacent to the valve shaft the valve shaft cannot rotate.

6. The valve lockout assembly of claim 1, further comprising a protrusion on the lockout bar, the protrusion configured to move within a recess of the lockout plate to restrict movement of the lockout bar.

7. The valve lockout assembly of claim 1, further comprising mounting holes in the lockout plate.

8. The valve lockout assembly of claim 1, further comprising holes in the lockout bar for retaining a lock or lockout hasp.

9. The valve lockout assembly of claim 1, wherein the valve shaft has at least one flat surface.

10. The valve lockout assembly of claim 1, wherein the lockout plate is substantially circular.

11. The valve lockout assembly of claim 1, wherein the lockout bar includes at least two arms.