Abstract: A tube sealing positioning apparatus has a tube holder slidable on a vertical guide from a lower to an upper portion of a sealing chamber for positioning adjacent a heating apparatus and a clamping apparatus. The heating apparatus may have a nozzle to direct heated air on an open end of a plastic tube. The clamping apparatus may have two clamping devices slidably disposed to clamp the heated open end of the plastic tube to fuse the tube wall adjacent the open end. A control processor may be connected to control movement and dwell time of the tube holder, and to control heat application and clamp spacing and time. A sealed tube may be attached to a top cover to be positioned in a test container. A sealing disk may close the top cover and may direct fluid pressure into the tube and apply a vacuum to the test container.

Abstract: A tube sealing positioning apparatus has a tube holder slidable on a vertical guide from a lower to an upper portion of a sealing chamber for positioning adjacent a heating apparatus and a clamping apparatus. The heating apparatus may have a nozzle to direct heated air on an open end of a plastic tube. The clamping apparatus may have two clamping devices slidably disposed to clamp the heated open end of the plastic tube to fuse the tube wall adjacent the open end. A control processor may be connected to control movement and dwell time of the tube holder, and to control heat application and clamp spacing and time. A sealed tube may be attached to a top cover to be positioned in a test container. A sealing disk may close the top cover and may direct fluid pressure into the tube and apply a vacuum to the test container.

Abstract: The present invention may be used for plastic tube sealing and testing. A housing may have in a sealing chamber a tube sealing positioning apparatus with a tube holder slidable on a vertical guide from a lower portion to an upper portion to be positioned adjacent a heating apparatus and a clamping apparatus. The tube holder may be moved and positioned by a linear positioning device. The heating apparatus may have a nozzle to direct heated air on an open end of a plastic tube. The clamping apparatus may have two clamping devices slidably disposed to clamp the heated open end of the plastic tube to fuse the tube wall adjacent the open end. A spacing distance sensor and a tube position distance sensor may be attached to the clamping devices for sensing the position of the tube and the spacing of the clamp jaws of the clamping devise. A control processor may be connected to the linear positioning device to control movement and dwell time of the tube holder.

Abstract: A method and facility for the storage and containment of material is provided, in which the facility is mounted spaced above the surface of the earth. Drainage means are mounted within the spaced distance created between the facility and the earth surface. This space between the facility and the earth surface is adapted for visual inspection of the lower surface of the base and the drainage means.

Abstract: Piping for transport of hazardous fluids is provided by replacing old-fashioned two pipe sections and a fitting type double wall piping by a unitary, integrally molded body of fusible plastic having inner and outer pipe walls supported by ribs between the walls, the ribs serving to carry the inner wall plastic within the mold, and being foreshortened at the junction of successive piping bodies to permit cross-flow of any liquids between the inner and outer wall from the point of inception to the place of detection.

Abstract: The leakage of hazardous fluid from the pipe sections or from between the pipe sections is monitored by butting concentric pipe section sets which define a cylindrical leakage collection and monitoring means to a special fitting which has a pair of seals and a passage to the collection means therebetween, so that leakage at the pipe intersections is collected and passed to the normal pipe-defined leakage collection and detection apparatus used to monitor pipe section leakage.

Abstract: A cleaning head for cleaning elongated tubes having multiple separate paths for different cleaning fluids to be supplied in sequence, and an impeller adapted to throw a first portion of the cleaning fluid centrifugally onto the tube inner wall, and to pass a second portion axially of the tube for subsequent mergence with the first portion, and an outer plenum directing cleaning fluid onto the tube exterior, for cleaning the entire tube top to bottom and inside and out.