Other

Baker Hughes, a Ge Compnay, LLC

Baker Hughes Oilfield Operations LLC

William J Cauley

Cheatham T Dudley

Sidney K Smith, Jr

Matthew J Krueger

Marcelle H Hedrick

Sean Yakeley

Robert Pena

Ryan Faul

An apparatus for retaining and releasing a pump down plug includes an outer housing having a recess and a shifting sleeve that contains the pump down plug and is disposed within the outer housing. The shifting sleeve is configured to slide within the outer housing. The apparatus also includes a retaining element configured to engage the pump down plug to retain the pump down plug, the retaining element being restrained from outward movement by the outer housing in a first position of the shifting sleeve, wherein sliding the shifting sleeve into a second position results in outward movement of the retaining element into the recess to release the pump down plug.

Mechanism for retaining and releasing pump down plug

A telescoping joint is used to space out ends of a string and distribute the string weight between the tie-down locations. The joint can be compressed to reduce its length but has a locking mechanism that prevents extension under tensile loading. The seals in the joint provide a longer service life due to minimization of relative movement in the expansion joint components. The locking mechanism is preferably a ratchet system that uses a body lock ring that is enabled after breaking a shear pin.

Expansion joint with one way movement feature

An electrical receptacle for selectively receiving two prong polarized or three prong grounded electrical plugs while excluding non-polarized plugs and other foreign materials from being inserted into the receptacle apertures. The receptacle is provided with a body having an internal cavity containing an aperture shield and a locking bar. The aperture shield is biased to the closed position obstructing the receptacle aperture and is retained in the closed position by the locking bar. The locking bar shifts to the unlocked position upon the insertion of the polarized plug or a ground prong enabling the aperture shield to shift transversely to the open position in response to plug insertion.

Electric receptacle

A device for closing female apertures in an electrical receptacle and opening those apertures responsive to mechanical engagement of a male prong of a plug, having prongs operable for insertion into the receptacle.

Growing community of inventors

Washington, MI, United States of America

William J Cauley