Andrew M Bauer

US Patent:

54981034, Mar 12, 1996

Filed:

Feb 22, 1994

Appl. No.:

8/199058

Inventors:

Andrew J. Bauer - Louisville KY

International Classification:

E01C 2302

US Classification:

404107

Abstract:

An applicator apparatus for dispensing and shaping a sealant material into a groove to be filled with the sealant material includes a dispensing head having an arcuate convex bottom surface which rides on the opposite side edges of the groove to be filled and protrudes into the groove and functions to shape or form a corresponding arcuate shape in the top side of the sealant. The dispensing head further includes a sealant dispensing passage having a sealant outlet opening at the bottom surface for dispensing sealant into the groove. In operation, the dispensing head is moved along the groove to be filled with sealant materials, and concurrently sealant material is dispensed through the dispensing passage into the groove. As the dispensing head is moved along the grooves, the arcuate bottom surface of the dispensing head forms a corresponding shape into the dispensed sealant material in the groove.

US Patent:

42722128, Jun 9, 1981

Filed:

Jun 15, 1979

Appl. No.:

6/048841

Inventors:

Andrew J. Bauer - Louisville KY
John N. Doering - Louisville KY

International Classification:

E01C 724
E01C 1910

US Classification:

404 72

Abstract:

A process for rejuvenating and recycling used asphalt and a machine including a pugmill mixing chamber for mixing crushed asphalt supplied thereto and for mixing water, calcium oxide and asphalt oil therewith is disclosed. The water and calcium oxide mixture react and chemically combine to form a calcium hydroxide filler material to thus fill the voids and gaps in the rejuvenated asphalt that would otherwise exist. The reaction, being exothermic, increases the temperature of the resultant asphalt based mixture to a level suitable for spreading of the rejuvenated material on a prepared surface. The asphalt oil is preferably preheated using a heat exchanger coil connected to a diesel engine radiator, which coil is immersed in an asphalt oil storage tank carried on the machine so that the viscosity of the oil may be reduced to a reasonable value suitable for pumping to the mixing chamber and spraying on the materials contained therein. A storage bin for storing granulated calcium oxide is positioned above the pugmill mixing chamber and contains an elongated opening in the bottom surface thereof which allows the bin to communicate with the chamber. A cylindrically shaped rotatable metering device is positioned at the bottom of the bin over the opening and contains a series of elongated axially extending slots radially displaced around the metering device so that the slots carry a measured quantity of calcium oxide from the bin into the chamber through the opening as the device is rotated, the speed of rotation of the device thus determining the rate at which material from the bin is introduced into the chamber.