Abstract: A moveable vehicle energy recovery apparatus, which comprises an air capture unit operative to be mounted on the moveable vehicle in a position to capture oncoming air when the moveable vehicle is in motion, a fan rotatably mounted in the air capture unit and a generator coupled to the fan and operative to rotate in response to rotation of the fan and to generate power. The recovery apparatus provides additional energy from the air passing the vehicle.

Abstract: The invention is a tool for replacing underground pipe. The tool has a nose coupler for coupling a pulling chain for pulling the tool through the underground pipe, a rear portion with a rear coupler for coupling a retaining chain, a plurality of breaking elements extending along the central longitudinal axis from the nose to the rear portion, and a plurality of nozzles on the rearward facing edges of the breaking elements, the nozzles operative to emit jets of high-pressure water against surrounding soil and fragments of the underground pipe.

Abstract: The invention is a tool for replacing underground pipe. The tool has a nose coupler for coupling a pulling chain for pulling said tool through the underground pipe, a rear portion with a rear coupler for coupling a retaining chain, a plurality of breaking elements extending along the central longitudinal axis from said nose to said rear portion, and a plurality of nozzles on said rearward facing edges of said breaking elements, said nozzles operative to emit jets of high-pressure water against surrounding soil and fragments of the underground pipe.

Abstract: An apparatus for replacing underground pipe. The apparatus has a fracturing or cutting element to fracture or cut underground pipe as it is drawn through the underground pipe. The apparatus additionally has an expanding element to expand the cavity of the underground pipe and a pipe guide to guide replacement pipe into the cavity of the underground pipe. The apparatus incorporates a longitudinal bore running the length thereof. A pulling line is passed through the longitudinal bore and connected to a block. The pulling line and block are operative to draw the apparatus through the underground pipe. A retaining line is connected to the block and trails the apparatus through the underground pipe. The retaining line permits retrieval of the apparatus in the event of an obstruction of the underground pipe. In addition, a plate connected to the retaining line is used to push replacement pipe into the cavity of the underground pipe behind the apparatus.

Abstract: A tool for replacing pipe, in which the existing underground pipe is fractured or cut into fragments, which are forced inward so that they pass through the tool. The tool has breaking members that extend radially outwards and backwards from a nose such that, when the tool is pulled through an existing underground pipe, the breaking members are forced against the inside of the existing underground pipe, thereby breaking it. The fragments are forced inwards by the leading edge of the cylindrical base of the tool and pass through a bore in the cylindrical base. In this way the replacement of existing underground pipe is made possible without expanding the cavity of the existing underground pipe. The tool may additionally include a pipe guide for guiding replacement pipe into place behind the tool as the tool is pulled through the existing underground pipe. The fragments pass through the pipe guide and into the replacement pipe.

Abstract: The invention relates to a tool for replacing pipe, in which the existing underground pipe is fractured or cut into fragments, which are forced inward so that they pass through the tool. The tool has breaking members that extend radially outwards and backwards from a nose such that, when the tool is pulled through an existing underground pipe, the breaking members are forced against the inside of the existing underground pipe, thereby breaking it. The fragments are forced inwards by the leading edge of the cylindrical base of the tool and pass through a bore in the cylindrical base. In this way the replacement of existing underground pipe is made possible without expanding the cavity of the existing underground pipe. The tool may additionally include a pipe guide for guiding replacement pipe into place behind the tool as the tool is pulled through the existing underground pipe. The fragments pass through the pipe guide and into the replacement pipe.

Abstract: An apparatus for replacing underground pipe. The apparatus has a fracturing or cutting element to fracture or cut underground pipe as it is drawn through the underground pipe. The apparatus additionally has an expanding element to expand the cavity of the underground pipe and a pipe guide to guide replacement pipe into the cavity of the underground pipe. The apparatus incorporates a longitudinal bore running the length thereof. A pulling line is passed through the longitudinal bore and connected to a block. The pulling line and block are operative to draw the apparatus through the underground pipe. A retaining line is connected to the block and trails the apparatus through the underground pipe. The retaining line permits retrieval of the apparatus in the event of an obstruction of the underground pipe. In addition, a plate connected to the retaining line is used to push replacement pipe into the cavity of the underground pipe behind the apparatus.