Patent ID: 8899268
Filing Date: 2014-12-02
Classification: E21B,Y10T

Abstract:
1. A discharge arm assembly for a truck or trailer-mounted pumping unit which comprises: a base unit which includes a base conduit that is rigidly secured to the truck or trailer and a swivel arm that is rotatable about a generally vertical axis; a jumper line which is connected between an outlet of the pumping unit and the base conduit, an articulated arm which comprises a first generally straight pipe, a first swivel joint that is connected to the distal end of the first pipe, a second generally straight pipe that is connected to the distal end of the fist swivel joint, a second swivel joint that is connected to the distal end of the second pipe, and an outlet coupling that is connected to the distal end of the second swivel joint; a generally 90° elbow which is connected to the swivel arm by a first threaded coupling and to the first pipe by a second threaded coupling; and a brace member which extends between the swivel arm and the first pipe to thereby support the first pipe for movement in a generally horizontal plane, the brace member comprising a first clamp member which is bolted to the swivel arm and a second clamp member which is bolted to the first pipe; wherein the brace member prevents the second threaded coupling from coming loose during use of the articulated arm while allowing the first pipe to be removed from the swivel arm for repair or replacement.