Tdw Delaware, Inc.

Hubbell Limited

Joshua Dean Mitchell

Roger L Poe

Timothy Charles Hoagland

Joseph Alan Morton

Woody Smith

Robert Fulton Hendricks

Aaron M Ritchie

William C Keenan

Samuel R Boehning

William J Tefft

Xue Chang

A closure [] for a cylindrical vessel includes at least one holding means [] configured to move the closure into a fully closed state, the holding means having a predetermined actuation force or torque to properly close the closure, the closure including one or both of the following failsafe failure detection features: a mechanical fuse [] having a predetermined load failure force below that of a load failure force of at least one component of the holding means and above that of a predetermined actuation force or torque to properly close the closure; or a block[] sized to at least partially overlap a pressure warning lock hole [] of the closure door when the closure is not in the fully closed state and to fully expose the pressure warning lock hole when the closure is in the fully closed state, thereby permitting insertion of a pressure warning lock [

Vessel closure device with fail safe failure detection means

A mold clamping system for exothermic reaction welding adapted to be power-operated by a power device, the combination comprising a first member adapted to support a first mold portion; a second member adapted to support a second mold portion; and a drive mechanism, adapted to be coupled to the power device, coupled to at least one of said first and second members and capable of moving the first and second members between a first position, in which the first and second mold portions are spaced apart, and a second position, in which the first and second mold portions are engaged, upon actuation of the power device in a first and a second direction, respectively.

Power-operated mold clamping system for exothermic reaction welding

A pig launcher/receiver includes a fluid distribution grid arranged above a floor of the pig launcher/receiver's barrel to define a fluid chamber between the floor and the fluid distribution grid. The distribution grid has a plurality of ports arranged to form jets that discharge at least a portion of the fluid which enters the fluid chamber. A predetermined number of the ports are inclined relative to vertical and in a direction opposite a closure door of the barrel. The fluid distribution grid, which is preferably semi-circular shaped, can be a permanent weldment, bolted on, or removable. When used in launching a pig, the ports provide a differential pressure that lifts the pig and overcomes friction as the pig moves forward. Because a number of the ports are blocked by the sealing elements (cup or disc) of the pipeline pig, the number of pigs residing in the launcher/receiver can be determined.

Fluidic pig launcher and method of its use

Growing community of inventors

Broken Arrow, OK, United States of America

Joshua Dean Mitchell