US Patent No. 10,371,282

SHAFT BLOWOUT PREVENTION DEVICE


Patent No. 10,371,282
Issue Date August 06, 2019
Title Shaft Blowout Prevention Device
Inventorship Purushottam Savalia
Ashraf Abouelleil, Oswego, IL (US)
Julian Ramirez, Aurora, IL (US)
Assignee Mueller International, LLC, Atlanta, GA (US)

Claim of US Patent No. 10,371,282

1. A valve comprising:a valve body defining a top end, a bottom end distal from the top end, and a shaft bore defined in the top end and the bottom end;
a valve shaft positioned at least partially within the shaft bore of the valve body and defining an end bore, the valve shaft defining an axis, the valve shaft configured to rotate within the valve body about the axis;
a shaft blowout prevention fastener secured within the end bore of the valve shaft and aligned with the axis of the valve shaft; and
a bottom cover secured to the bottom end of the valve, the bottom cover defining a clearance hole sized to receive the shaft blowout prevention fastener, the bottom cover positioned at least partially between the valve shaft and a head of the shaft blowout prevention fastener, an outer diameter of the head of the shaft blowout prevention fastener being larger than an inner diameter of the clearance hole of the bottom cover;
wherein fluid surrounding the head of the shaft blowout prevention fastener is in fluid communication with the bottom cover, the bottom cover enclosing the head of the shaft blowout prevention fastener.