The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2009
Filed:
Aug. 26, 2008
Jack Darryl Payne, Spring, TX (US);
Tait James Landry, Thibodaux, LA (US);
James L. Goljenboom, Kenner, LA (US);
Richard Joseph Ordoyne, Ocean Springs, MS (US);
Timothy A. Dunbar, Houma, LA (US);
Jack Darryl Payne, Spring, TX (US);
Tait James Landry, Thibodaux, LA (US);
James L. Goljenboom, Kenner, LA (US);
Richard Joseph Ordoyne, Ocean Springs, MS (US);
Timothy A. Dunbar, Houma, LA (US);
J. Ray McDermott, S.A., Houston, TX (US);
Abstract
A mechanically releasable shackle pin arrangement that is readily operated by an ROV and is not affected by the hydrostatic pressures encountered at depth. A shackle body having two ends has a shackle pin received through bores at one end of the shackle body. A shackle nut threaded on the shackle pin secures the shackle pin in an installed position through the bores in the shackle body. An anti-rotation link plate is attached to the shackle body. The anti-rotation link plate extends to one end of the side plate. The shackle pin extends through bores at one end of the shackle body and the anti-rotation link plate and is secured in its installed position by a shackle nut threaded on the shackle pin. Means for preventing rotation of the shackle nut and loss of the shackle nut is provided on the anti-rotation link plate such that the shackle pin can be removed by a remotely operated tool on an ROV at depth to release a load without the need for hydraulics on the shackle assembly. The shackle pin is provided with a special plate arrangement designed to allow the shackle pin to be gripped and rotated by a remotely operated tool on an ROV.