1
Lorne G Gabel, Garry E Paulson, Thomas G Kirk: Highway premarking guidance system. Her Majesty the Queen in right of Canada represented by the Minister of Highways and Transportation, January 27, 1981: US04247870 (220 worldwide citation)

A method and apparatus for marking a line, such as the centerline, along a roadway, using a vehicle carrying paint marking apparatus, in which a pair of television cameras, one mounted on each side of the vehicle, view the edges of the roadway and project the images onto a split screen. By keeping t ...


2
Thomas G Kirk: Acoustic grain flow rate monitor. Canadian Patents and Development, Edward Rymek, January 18, 1977: US04004289 (30 worldwide citation)

A grain flow rate monitor has a high sensitivity for the detection of seed loss in the chaff ejected from a thresher, which may be used for monitoring heavy or light seed grains. The monitor includes an acousto-electric sensor upon which the chaff impinges to produce a wide frequency spectrum signal ...


3
Wayne M Kotyk, Thomas G Kirk, Robert J Wilson, James N Wilson: Unthreshed head grain loss monitor. Canadian Patents & Development, Ronald G Bitner, April 25, 1989: US04825146 (5 worldwide citation)

A device for indicating grain loss resulting from unthreshed heads in a combine harvester using a microwave transmitter-sensor. The device provides an output signal whose magnitude is a function of the mass of passing effluent which when compared to that of a typical threshed head provides a measure ...


4
Lorne G Gabel, Garry E Paulson, Thomas G Kirk: Method of marking a line along a roadway. Her Majesty the Queen in Right of the Province of Saskatchewan, September 11, 1979: US04167592 (5 worldwide citation)

A method and apparatus for marking a line, such as the centerline, along a roadway, using a vehicle carrying paint marking apparatus, in which a pair of television cameras, one mounted on each side of the vehicle, view the edges of the roadway and project the images onto a split screen. By keeping t ...