Abstract

A sled assembly includes a sled that carries a reciprocating spinner assembly for spraying reinforcing material against the interior surface of a pipe. The reciprocating spinner assembly includes an axial worm gear operatively connected to a reversible drive motor. A dust cover and shroud are arranged to keep the worm gear free of dust and debris. The sled includes skis that have a structural core member and an outer wear member and adjustable frame members by which the height of the reciprocating spinner assembly may be adjusted to be at the center of different diameter pipes. Temperature sensors and an air pressure sensor are arranged to sense the temperature of the spinner and the reinforcing material the pressure of compressed air for the spinner. Lights are arranged to illuminate the working area and to provide a visual indication of which direction the spinner is moving along the worm gear.

IPC Classes  ?

• F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe

Abstract

A planetary gear retrieval system for pulling a sled at a constant velocity along an interior of a pipe, and a sled for applying a coating material to the interior of the large-diameter pipe. The planetary gear retrieval system is connected to the sled via a chain, and has a network of gears controlled by a first variable speed microcontroller. A spinner on a linear oscillating plate provided on the sled is controlled by a second variable speed microcontroller. The first and second microcontrollers are programmable to be synchronized with one another so as to pull the sled at a desired constant rate and achieve a desired number of passes of the spinner along a given length of pipe while the sled is pulled at the desired rate.

IPC Classes  ?

• B05C 7/08 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work for applying liquids or other fluent materials to the inside of tubes

Abstract

A planetary gear retrieval system for pulling a sled at a constant velocity along an interior of a pipe. The system includes a network of gears, one of the gears powered by a gear motor, which is in operable communication with a variable speed microcontroller. A chain is threaded through the network of gears and an end of the chain is connected to the sled.

IPC Classes  ?

• B66D 1/02 - Driving gear

Abstract

A spray head for spraying mortar is provided. The spray head includes a mortar supply pipe and a spinning head positioned at an outlet point of the mortar supply pipe, the spinning head directing mortar supplied from the mortar supply pipe in a direction substantially perpendicular to the direction of travel of mortar in the mortar supply pipe. An air intake for receiving air is further provided, the air being employed to spin the spinning head pneumatically. Finally, a material input port is provided for inputting material to be combined with the mortar in the mortar supply pipe at the outlet point of the mortar supply pipe.

IPC Classes  ?

• A62C 5/02 - Making of fire-extinguishing materials immediately before use of foam

Abstract

An apparatus for applying mortar is provided. The apparatus includes a support sled and a mixer positioned on the support sled. The mixer combines a received dry powder mortar and a liquid, and a pump positioned on the support sled and adapted to pump the mixed mortar and liquid. The apparatus further includes a spray head positioned on the support sled and adapted to receive the pumped mortar and liquid mixture and spray the mixture.

IPC Classes  ?

• E04B 1/00 - Constructions in generalStructures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
• E04G 21/00 - Preparing, conveying, or working-up building materials or building elements in situOther devices or measures for constructional work

Abstract

An apparatus for applying mortar is provided. The apparatus includes a spray head adapted to receive a pumped mortar and liquid mixture and spray the mixture in a direction perpendicular to a direction of travel of the mortar and liquid mixture into the spray head, the spray head oscillating in the direction of travel of the mortar and liquid mixture into the spray head.

IPC Classes  ?

• A62C 5/02 - Making of fire-extinguishing materials immediately before use of foam

Abstract

A spray head for spraying mortar is provided. The spray head includes a spinning head positioned at an outlet point of a mortar supply pipe, the spinning head directing mortar supplied from the mortar supply pipe in a direction substantially perpendicular to the direction of travel of mortar in the mortar supply pipe. The spray head further includes an air intake for receiving air, the air being employed to spin the spinning head pneumatically, and a material input port provided coaxial to the mortar supply pipe and around the mortar supply pipe, the material input port for providing material to be combined with the mortar in the mortar supply pipe at the outlet point of the mortar supply pipe.

IPC Classes  ?

• B28C 5/00 - Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
• B28C 7/06 - Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
• B28C 5/08 - Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing