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Donald I Loofbourow, Richard G Chambers: Apparatus for supplying phase change ink to an ink jet printer. Tektronix, Ralph D Alessandro, August 15, 1995: US05442387 (221 worldwide citation)

A triggerable ink transfer system that simultaneously transfers ink from a plurality of ink preload chambers to corresponding load chambers and ink reservoirs is disclosed. The delivery system permits an untrained operator to safely load ink without inadvertently interchanging different types (e.g. ...


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Donald I Loofbourow, Richard G Chambers: Apparatus for supplying phase change ink to an ink jet printer. Tektronix, John D Winkelman, Ann W Speckman, June 29, 1993: US05223860 (125 worldwide citation)

A triggerable ink transfer system that simultaneously transfers ink from a plurality of ink preload chambers to corresponding load chambers and ink reservoirs is disclosed. The delivery system permits an untrained operator to safely load ink without inadvertently interchanging different types (e.g. ...


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Donald I Loofbourow 1590 Fernwood Dr, 97034: Golf ball heater. Oliver D Olson, August 8, 1972: US3683155 (24 worldwide citation)

A hollow housing removably encloses a golf ball support spaced from the top and bottom ends of a housing. The golf ball support is provided with an annular trough for retaining golf balls, and the center and perimeter portions of the support are perforated to allow circulation of air within the hous ...


4
Donald I Loofbourow, Robert E Lach: Film web handling mechanism. GAF Corporation, Walter C Kehm, J Gary Mohr, August 1, 1978: US04103846 (1 worldwide citation)

A film web handling mechanism includes a motor for driving the mechanism, and an endless belt for transferring the motor drive to a supply pulley, a take-up pulley and a shuttle-shuttle drive pulley. The supply pulley and the take-up pulley are connected, through a supply clutch and a take-up clutch ...


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Donald I Loofbourow, Robert E Lach: Film transport and control mechanism for motion picture projectors. GAF Corporation, Walter C Kehm, J Gary Mohr, March 20, 1979: US04145127

A modular film transport and control mechanism for selectively advancing either regular 8mm or super 8mm perforated motion picture film through a projection gate is provided. The module comprises a film transport shuttle having a film engaging claw biased for engagement with the perforations of the ...


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Donald I Loofbourow, Robert E Lach: Film buffer for motion picture projectors. GAF Corporation, Walter C Kehm, J Gary Mohr, October 2, 1979: US04169667

A film buffer for motion picture projectors is provided to permit the smooth advancement of the film through a projection gate, and to serve as a shock absorber to insure even projection. The buffer comprises a pair of rollers in fixed relation to each other juxtaposed to form a loop in the film in ...


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