Thin film thermal oxidative oil deposit testing device and method

A thin film thermal oxidative engine oil or other oleaginous liquid deposit device comprising an oleaginous test liquid placement volume;

• a heatable depositor surface in liquid communication with said volume, the heatable depositor surface having a configuration to guide or channel said liquid so that said liquid has a thickness of about one thousandths of an inch when on said surface;
• a supply for at least one of an oxidant and another substance which can adversely affect said liquid;
• and a thin film forming unit which can deliver said liquid to said surface in said film.

A depositor surface useful for a thin film thermal oxidative engine oil or other oleaginous liquid deposit device comprising a generally cylindrical rod having opposing ends and a centrally positioned cylindrical section between the ends, and a wire encircling said centrally positioned section, said depositor surface capable of being heated.

A mantle useful for a thin film thermal oxidative engine oil or other oleaginous liquid deposit device comprising a hollow body having top and bottom portions thereto, said body with openings at the top and bottom so that a depositor rod can be inserted therethrough, and said body generally in the shape of a pear;

• a thin film forming unit for introduction of a test liquid to the depositor rod;
• inside the body near the bottom and connected thereto, a lower end, upwardly facing volatiles collection trough having sides and a bottom, which trough leads to a volatiles delivery opening;
• and a test liquid exit orifice.