Device and method to relieve cordelle action in a chain driven p

Details Device and method to relieve cordelle action in a chain driven p Device and method to relieve cordelle action in a chain driven p

1993-05-03

1994-10-25

Gluck, Richard E.

Pumps

Expansible chamber type

Fluid serially moved to opposite side of pumping member

166369, 166 685, 74 8921, 474111, 474140, F04B 2104

Patent

active

053583841

ABSTRACT:
A cordelle action relief apparatus or device for use in sucker rod pumps in a petroleum or water well. The device is incorporated in a chain driven pump to prevent the chain from forming a bow or archlike configuration as the chain rolls off of the sprocket and down into the well. When the chain is allowed to form this bow or arch it could damage the well and well casing. The device includes a first rod on the side of the chain and a second rod on the second side of the chain that will allow the rollers of the chain to roll on the rod and further prevent the chain from bowing or arching and will further allow the rollers on the chain to roll on the rods which will further prevent damage to the well casing, the well, and the chain.

REFERENCES:
patent: 4063825 (1977-12-01), Cardoneau
patent: 4179947 (1979-12-01), James
patent: 4197766 (1980-04-01), James
patent: 4404863 (1983-09-01), James
patent: 4676311 (1987-06-01), Dysarz
patent: 4714110 (1987-12-01), Dysarz

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