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US 8,025,024 B2Granted
Pipe joint lubrication device
AssigneeV-Tech, Inc.
InventorHelge-Ruben Halse
Life of this patent
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Abstract
A pipe joint lubrication device including at least one first nozzle for application of lubricant on at least one of the fittings, a threaded nipple or a threaded socket, wherein the at least one first nozzle is provided on a first jaw housing which is rotatable about the longitudinal axis of the nipple or the socket.
Claims10
A pipe joint lubrication device for application of lubricant on a fitting having a longitudinal axis, said device comprising:
- a first jaw housing forming part of a make-up tong of a power tong, the housing is rotatable about the longitudinal axis of the fitting wherein the first jaw housing is provided with an axial through opening which forms part of a make-up tong of a power tong, the first jaw housing including a swivel ring that encircles the first jaw housing and is stationary relative to the first jaw housing;
- at least one first nozzle in said first jaw housing, the at least one first nozzle being supplied with lubricant via a duct in said swivel ring and located to spray lubricant towards the fitting located in a second jaw housing of the power tong while said at least one first nozzle rotates about the longitudinal axis;
- and
- a second nozzle placed on the second jaw housing which is stationary relative to the longitudinal axis of the fitting, the second nozzle being arranged to spray lubricant towards a second fitting located in said first jaw housing;
- while the fitting rotates about its own longitudinal axis;
- and
- wherein the fitting and second fitting can be simultaneously lubricated.
4 more elements
A pipe joint lubrication device for application of lubricant on a fitting having a longitudinal axis, said device comprising:
- at least one first nozzle in a first jaw housing which is rotatable about the longitudinal axis of the fitting and located to spray lubricant towards the fitting located in a second jaw housing while said at least one first nozzle rotates about the longitudinal axis;
- wherein the first jaw housing is provided with an axial through opening which forms part of a make-up tong of a power tong, the first jaw housing includes a swivel ring that encircles the first jaw housing and is stationary relative to the first jaw housing;
- and having
- a retractable spacing mandrel arranged to establish and maintain a desired distance between the make-up tong and a holding-up tong during application of lubricant;
- and
- a second nozzle placed on the second jaw housing which is stationary relative to the longitudinal axis of the fitting, the second nozzle being arranged to spray lubricant towards a second fitting located in the first jaw housing;
- while the second fitting rotates about its own longitudinal axis;
- and
- wherein the fitting and second fitting can be simultaneously lubricated.
6 more elements
Dependencies are inferred from the claim text.