Abstract: A tool assembly is provided for working on underground pipes, through a small hole at the pipe surface, by means of an elongate handle member that reaches into the hole, and has a coupling at the lower end thereof, whereby various ones of selected tools may be quickly connected to and disconnected from the lower end of the handle member, by means of a universal coupling, and whereby the tools can be pneumatically driven from above ground.

Abstract: A tool assembly and a process for using it is provided, wherein a single elongate handle member may be used, through a small hole at the ground surface, to reach underground pipes for installing different sized strap “T” couplings on different sized pipes, and for driving sleeve members associated with said strap “T” couplings, pneumatically, from above ground, to engage pipes at various locations below ground.

Abstract: The method and two devices provide for the underground connection of pipe with minimal disruption of the surrounding landscape. A main pipe is cleaned by a surface preparation tool designed to access the main pipe through a small hole. An adaptor is attached to a second pipe, and then placed in a clamping device designed to access the main pipe and clamp the adaptor thereto through the small hole. Electricity is passed through the adaptor, thereby softening the plastic so that this softening and the pressure of the clamp secures the adaptor to the main pipe. The main pipe is then pierced by the adaptor's tapping tee.

Abstract: The present invention is a lance for removing dirt or other substances from an underground hole, by the use of air and water under high pressure. The water is used as an abrading material or lance to loosen dirt in a hole or to pick or chip off substances which are attached to a pipe. A limited amount of water is used during the operation of the apparatus, to prevent the formation of wet mud.

Abstract: The present invention is a lance for removing dirt or other substances from an underground hole, by the use of air and water under high pressure. The water is used as an abrading material or lance to loosen dirt in a hole or to pick or chip off substances which are attached to a pipe. A limited amount of water is used during the operation of the apparatus, to prevent the formation of wet mud.

Abstract: The method and two devices of the present invention provide for underground connection of pipe with minimal disruption of the surrounding landscape. The main pipe is cleaned by a surface preparation tool of the present invention designed to access the pipe through a small hole. An adaptor is attached to the second pipe, and then placed in a clamping device of the present invention, designed to access the main pipe and clamp the adaptor thereto through a small hole. Electricity is passed through the adaptor, thereby softening the plastic so that this softening and the pressure of the clamp secures the adaptor to the main pipe. The main pipe is then pierced by the adaptor's tapping tee.

Abstract: A tube expander for expanding or flaring the ends of automobile exhaust pipes and the like includes a segmented expander die having an arbor slidably received within the expander die segments for expanding the die upon movement of the arbor in a first predetermined direction. A manually operated device initially moves the die relative to the arbor to establish the amount of expansion to be permitted in the die and a separate independent hydraulic mechanism is then operated to move the arbor in the first direction in order to flare the end of a tube placed on the die to increase its diameter by a predetermined dimension. The compact structure provided enables the tool to be manually operated to flare tubes in situ on an automobile.

Abstract: A tube expander for expanding or flaring the ends of automobile exhaust pipes and the like includes a segmented expander die having an arbor slidably received within the expander die segments for expanding the die upon movement of the arbor in a first predetermined direction. A manually operated device initially moves the arbor in the first direction to expand the die until the die segments engage the interior surface of the tube end to be expanded, and a separate independent hydraulic mechanism is then operated to move the arbor in the first direction in order to flare the tube to increase its diameter by a predetermined dimension. The compact structure provided enables the tool to be manually operated to flare tubes in situ on an automobile.