Abstract: A cup and seal system for trailer brake assemblies that can attach and fit inside a trailer brake at the base of an axle spindle that will catch and contain any leaked lubricants from a seal seepage or seal blowout failure. The accompanying seal is configured with the specs of an ordinary seal with an added extended lip that will fit inside the cup reservoir without friction resulting in a fail-safe system for trailers that are in-between bearing and brake maintenance services. Cups and Seals may be configured to fit different brake types and sizes, drum sizes, and spindle configurations to direct, catch and possibly expel any lubricant that would diminish the performance and/or stopping power of the trailer brake.

Abstract: A method of fabricating an array of biopolymer probes bound to a surface of a substrate at feature locations. The method uses multiple deposition heads each with a set of nozzles through which drops are dispensed. Drops are deposited during a same cycle onto the feature location from a set of the deposition heads while spaced from the surface. At least some of those drops contain probe precursors, so that the probe precursors bind to the surface through a linker. This depositing is repeated multiple times with the probe precursor deposited in a prior cycle serving as the linker for a probe precursor deposited in a subsequent cycle. Additionally, drops are deposited at a same feature from the set of heads during a one cycle, and further drops are deposited at the same feature from the set of heads during another cycle. Apparatus and computer program products are also provided.