Dennis E. Calkins
Engineering at Gdn Ter Dr, Katy, TX
License number
Louisiana PE.0017229
Issued Date
Jul 26, 1978
Expiration Date
Mar 31, 2017
Category
Civil Engineer
Type
Civil Engineer
Address
Address
2007 Garden Terrace Dr, Katy, TX 77494
Professional information
Pipeline Recovery Tool
US Patent:
6402428, Jun 11, 2002
Filed:
May 22, 2000
Appl. No.:
09/576364
Inventors:
Ziba Morisi - Katy TX
Raymond Joseph Serpas - New Orleans LA
Kevin Patrick Zaeringer - Metairie LA
Dennis Earl Calkins - Katy TX
Raymond Joseph Serpas - New Orleans LA
Kevin Patrick Zaeringer - Metairie LA
Dennis Earl Calkins - Katy TX
Assignee:
J. Ray McDermott, S.A. - Housto TX
International Classification:
F16L 100
US Classification:
405158, 405173
Abstract:
A pipeline recovery tool is made from steel plates welded together instead of forging and machining. The rigged-up tool is lowered over the pipeline and engaged with the pipeline such that a fixed claw engages the collar on the pipeline. An ROV is used to cause a movable dog on the tool to engage the collar and then lock the fixed claw in position. Rigging on the fixed claw side of the tool is released. The pipeline is then lifted to the surface by a lift arm on the first end of the tool.
Deep Water Lowering Apparatus
US Patent:
5951227, Sep 14, 1999
Filed:
Jul 28, 1998
Appl. No.:
9/123922
Inventors:
Dennis Earl Calkins - Katy TX
Afif Michel Labaki - New Orleans LA
James Joseph Toups - Houma LA
Kevin Patrick Zaeringer - Metairie LA
Afif Michel Labaki - New Orleans LA
James Joseph Toups - Houma LA
Kevin Patrick Zaeringer - Metairie LA
Assignee:
J. Ray McDermott, S.A. - New Orleans LA
International Classification:
B63B 2708
US Classification:
4141417
Abstract:
A deep water lowering apparatus that utilizes dual davit structures mounted on a barge. Each davit structure has a pulling wire rope line spooled on a storage winch. Each pulling line is reeved onto a traction winch and through upper and lower sheaves on the davit structure. Corresponding ends of each pulling line are connected together on an equalizer beam. An adaptor box is suspended from a spreader bar provided with a dog leg center portion for effecting the load transfer from the crane. The lowering tool that supports the load is directly received in the adaptor box and transfers the load to the lowering apparatus without the need for rigging work.