Cimline, Inc.

Michael Stuart Halvorson

Mark Butzer

Stephen R Johnson

Methods and apparatus for repairing road surfaces mix aggregate and liquified crack sealer on demand into mastic material for direct delivery to the road surfaces. Aggregate flows from a tilted box of a dump truck into a hopper and is conveyed by an auger into a tubular horizontal chamber. Liquified crack sealer is deliverable from a tank to the road surface or into the tubular horizontal chamber where it is mixed with the aggregate by a device into mastic material which is pushed through a vertical opening for delivery directly to the road surfaces. The frame which supports the hopper, conveyor, tank, and tubular horizontal chamber is movably supported on the road surfaces and is hitched to the dump truck.

Methods and apparatus for repairing road surfaces

A pavement crack router includes a plurality of bits rotatably mounted to a frame in a direction. A ratchet gear is rotatable with a wheel mounted to the frame. A movable safety release is operably connected to a ratchet rod pivotable between an engaging position engaged with the ratchet gear preventing rotation of the wheel in a reverse direction and a releasing position disengaged from the ratchet gear allowing free rotation of the wheel. An elastomeric inner tube is mounted around a lower end of each of two handle bars and is slideably received in an outer tube fixed to the frame. Two elastomeric washers are mounted around the lower end of each handle bar and sandwich the inner tube within the outer tube. A switch is operable to lower the frame and bits for opening and cleaning a crack in pavement.

Pavement crack router

A hose holder boom assembly () includes a first pivotal connector () pivotally mounting an open end () of a first tube () to a sidewall () of a cabinet () about a first pivot axis. A second pivotal connector () mounts an open end () of a second tube () to the other open end () of the first tube () about a second pivot axis parallel to and spaced from the first pivot axis. Movement of the first tube () relative to the sidewall () and relative movement between the first and second tubes () are limited to a pivot plane extending perpendicular to the first and second pivot axes and including the first and second tubes (). The open end () of the second tube () is pivotable at an obtuse angle to each of two sides of the other open end () of the first tube (). A hose () for outputting paving material extends out of the cabinet () and through the first and second tubes () and the first and second pivotal connectors ().

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Maple Grove, MN, United States of America

Michael Stuart Halvorson