Abstract: A horizontal position and vertical elevation measurement apparatus and method for measuring horizontal positioning and absolute elevations of railways, paved or unpaved roadways, and other travel surfaces. The apparatus is capable of determining longitudinal and transverse elevational profiles in an X-Y-Z coordinate format usable with Geographical Information Systems (GIS) and Land Information Systems (LIS) to project present and future traffic counts and traffic flow patterns. It can measure the horizontal location and elevations of paved and unpaved travel surfaces, potholes, cracks, wheel ruts, etc. within a travel surface, and the horizontal location and elevations of railway tracks when conventional railroad high rail gear is used. The apparatus has Global Positioning System (GPS) signal receiving units fixed to each end of a sensor bar mounted on a vehicle perpendicular to vehicle movement.

Abstract: A cover for use in blocking the openings in disposable oil filters for protection of the interior surfaces of new disposable oil filters from outside contamination and also for containment of residual oil within used disposable oil filters to prevent leakage of the used oil therefrom. The protective cover has a coverplate and a knob located on the upper surface thereof for attaching and removing the protective cover from a disposable oil filter. The protective cover may also have external threads on the perimeter of the coverplate for mating with internal threads on the disposable oil filter, an externally threaded inner shaft depending from the lower surface of the coverplate, a fixed or free-spinning knob, and studs for additional security in covering the openings located through the outer surface of the disposable oil filter.

Abstract: A pipe end trimming device for hand-held use in beveling the outer surface of the end of one pipe so that the beveled end may fit within the end of a similar diameter pipe for a strong connection therebetween. The preferred embodiment abrasive cylinders which are motor driven. An aligning arm with an adjustable aligning edge allows for quick, uniform beveling of different diameter pipe. Shielding adjacent to the abrasive cylinders protects the operator from debris thrown from the pipe during the beveling process.