Mcelroy Manufacturing, Inc.

Other

Phillips Petroleum Company

Arthur H McElroy, Ii

James R Perrault

David W Porter

Wilianto Wongso

Dave Hughes

Joshua B Combs

Hayden Davis

Timothy Michael Thoman

Paul John Donaldson

Richard A Deaver

Ronald J LaSpisa

Brian M O'Connell

Jason A Lawrence

Bobby Lee Murray

Seth P Ahrens

William Barton Draeger

Kean C Chin

Brandon William Jackman

James C Carroll

Keith E Gleasman

Vernon E Gleasman

Russell C Cox

James C Calderwood

Amanda Hawkins

James S Johnston, Jr

Jim M Craig

Dave Ray Hughes

Chi K Chim

David Warren Porter

Modular carriage for varying spacing between ends of polymer pipe during fusion. The modular carriage includes a fixed jaw; an inner movable jaw; an outer moveable jaw and a plurality of guide rods. The fixed jaw being adapted for tool free engagement with the terminal ends of the plurality of guide rods. A carriage cylinder is associated with at least two of the guide rods and mounted for reciprocal travel along the length of its associated guide rod. The movable jaws being adapted for tool free engagement with at least two carriage cylinders for reciprocal travel therewith. A combined hydraulic cylinder/guide rod includes a guide rod with an integral guide rod piston, a cylindrical tube, and a guide rod gland on each end of the cylinder tube.

Modular carriage assembly for the fusion of polyolefin pipes

A facer facing the ends of polyolefin pipes for butt fusion is modular in the sense that it employs three types of modules, a drive unit, two blade holders and a motor assembly, that are separable from one another and each independently light enough to be hand-lifted along walls and up to ceilings. The drive unit module is adjustable to accommodate different guide rail spacings. The blade holder modules are interchangeable to accommodate different diameters of pipe. The motor assembly module has multispeed capability to accommodate the total area of material to be faced. Each module can be exchanged or modified without use of tools to change the geometry of the assembled facer to accommodate different fusion machines and/or diameters of pipe within working spaces dictated by the diameter of the pipe and not by a fixed geometry of a facer.

Facer for end fusion of polyolefin pipes

A method for minimizing the time to form a polyethylene pipe e joint comprises the steps of performing a butt-fusion process until the beginning of the full cooling cycle; holding an interfacial pressure through a minimum cool time calculated using a formula based on the wall thickness of the pipe e, the initial bulk temperature of the pipe e, and a heat soak time; and releasing the interfacial pressure from the fused pipe e joint at the end of the calculated minimum cool time.

Method for butt fusion of polyethylene pipe

For use in loading heavy sticks of plastic pipe into a pipe fusion machine, a pipe storage rack with hydraulically powered pipe stick dispensers and stands allows sticks of pipe stored on the rack to roll gravitationally onto a rocking V-shaped dispenser cam disposed between the rack and the fusion machine loading path for one-stick-at-a-time loading onto powered track and roller stands which enable Cartesian manipulation of the stick into the fusion machine. The cam is adjustable to suit pipe stick diameters ranging from 20&#x2033; to 48&#x2033;. Many sticks can be stored at one time, releasing heavy lifting equipment and operators to work elsewhere. The process requires only one operator using a pendant controller and the pipe sticks are handled by heavy equipment only when being loaded onto the racks.

Rack type pipe feeder for a pipe fusion machine

Cabinet for a ceramic cooker

Polyolefin pipes are welded end-to-end by a self-propelled, self-contained machine which performs all steps necessary to the process without need for any other machines or equipment. Hydraulically driven parallel tracks are independently controlled for maximum maneuverability. An hydraulically driven, computer controlled, reversible jaw assembly reciprocates the new pipe section relative to the exiting pipe line. A facer for trimming and squaring the pipe ends to be joined and a heater for melting the pipe ends for fusing are umbilically connected to the machine for on-board or remote operation. The computer, also on an umbilical, enables the operator to operate the machine in a normal mode in which the operator manually controls the facing, soaking and fusing processes or an automatic mode in which the fusing process is automatically controlled by the computer. The computer also allows the operator to choose a data logging mode in which the operating pressure, heater temperature and time data are recorded to provide a history for each joint made by the machine.

Self-contained and self-propelled machine for heat fusing polyolefin pipes

Self-contained and self-propelled machine and method for heat fusing

Self-contained and self-propelled machine for heat fusing polyolefin

Growing community of inventors

Tulsa, OK, United States of America

Arthur H McElroy, Ii