Measuring and testing – Coating material: ink adhesive and/or plastic
Reexamination Certificate
2008-09-23
2008-09-23
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Coating material: ink adhesive and/or plastic
C073S009000, C073S010000, C073S046000, C073S049800, C073S053050, C073S865900
Reexamination Certificate
active
11377039
ABSTRACT:
A method and an apparatus for testing the adhesive strength of overlays attached to the inside of plain bearing bushings. The method is characterized in specifying clearance between the plain bearing bushing tested and a rotating or oscillating pin extending through the bushing. Next, feeding a liquid medium into the gap between the bushing and the pin and oscillating the plain bearing bushing and pin relative to one another perpendicularly to the bushing axis for a given period and examining the bushing after the load test. The corresponding apparatus comprises a pin mounted rotatably in a pin receptacle and on which there is arranged a first drive mechanism. In addition, a bushing receptacle is provided, in which the plain bearing bushing is fitted, wherein the pin is mounted with predetermined clearance in the bushing. The apparatus additionally comprises a mechanism for bringing about oscillating relative movement of bushing receptacle and pin receptacle.
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Aubele Thomas
Weil Gerhard
Wilhelm Maik
Dickinson Wright PLLC
Federal Megal Wiesbaden GmbH + Co. KG
Kirkland, III Freddie
Lefkowitz Edward
Stearns Robert L.
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