H. C. Price Co.

Robert J Harris

Gail T Sikes

Cecil A Eddlemon

George E Hanson

A pipe coating composition is the subject of the present invention. A bituminous base coating comprising binder, aggregate and fiber utilizes cement stack dust as a filler in place of conventional lime dust or cement. The cement stack dust filler is utilized in quantities up to 25% less than the quantity of lime dust previously required for lime dust.

Pipe coating composition utilizing cement kiln dust filler

An improved containerized pipe coating including coating material and the container therefor is the subject of the present invention. An asphalt coating material comprising 10% to 25% by weight asphalt and 75% to 90% by weight sand-lime aggregate is used to coat the weld joints of pipe previously coated with similar material along its length for corrosion protection. The weld joint coating material is delivered to a coating station in easy to handle small size containers. The containers comprise no more than about 5% of the weight of the material contained thereby and are constructed primarily from a material containing at least one of the members of the group consisting of polyethylene, polypropylene and polyethylene-polypropylene copolymer. The containerized material is placed in a chopper where it is reduced in size. The chopped mixture of particles are then melted and stirred until a relatively even mixture of a flowable liquid is presented. The mixture has enhanced physical properties as a coating material.

Containerized pipe coating material

A method of providing asphalt base coating material for pipe and a novel container for holding the coating material are the subject of the present application. An asphalt coating material comprising 10% to 25% by weight asphalt and 75% to 90% by weight sand-lime aggregate is used to coat the weld joints of pipe previously coated with similar material along its length for corrosion protection. The weld joint coating material is delivered to a coating station in easy to handle small size containers. The containers comprise no more than about 5% of the weight of the material contained thereby and are constructed primarily from a material containing at least one of the members of the group consisting of polyethylene, polypropylene and polyethylene-polypropylene copolymer. The containers are placed in a chopper where they are reduced in size along with the coating material. The chopped mixture of particles are then melted and stirred until a relatively even mixture of a flowable liquid is presented.

Method of packaging asphalt material and improved product resulting

A method and apparatus for packaging thermoplastic fluid material is the subject of the present invention. The thermoplastic material is mixed at an elevated temperature and emptied in predetermined batch quantities into a holding area. A gate in the bottom of the holding area is operable to empty the batch of material in a very short time span. A plurality of heating elements are disposed beneath the outlet of the holding means and are maintained at a temperature high enough to cause parting of the fluid material as it passes over the heating elements. Thus the batch of material from the holding area will be divided into a plurality of individual masses as the material passes over the heating elements. By utilizing a number of heating elements equal to one less than the number of containers to be filled, and by spacing the heating elements equi-distances apart, the individual masses of material will be equal in size and the number of individual masses will equal the number of containers. The containers are positioned immediately beneath the heating elements to receive the material and are filled simultaneously.

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Marrero, LA, United States of America

Robert J Harris