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US 5,507,219 AGranted
Fail-safe linkage for a reciprocating pump
OwnerHuey Stognerinventor
Life of this patent
Estimating the term…
Abstract
Disclosed are a fail-safe linkage for a reciprocating pump and a method for repairing the pump following failure of the linkage. The pump linkage includes a break rod inserted between the crosshead and piston rod so that an inevitable failure of the linkage occurs predictably in the break rod. In such a manner, pump downtime can be reduced following failure since the break rod can be easily replaced without extensive disassembly of the pump.
Claims14
A reciprocating pump linkage for mechanically connecting a piston rod of a pump unit to a crosshead member of a drive unit, comprising:
- (a) a crosshead extension rod having a proximal end removably secured to the crosshead member and a distal end comprising a coaxial bore;
- and
- (b) a break rod having a proximal end received in the bore of the crosshead extension rod and a distal end for coupling the piston rod, wherein the break rod defines a fail-safe break point in the linkage.
Dependencies are inferred from the claim text.