California-based Phillips Industries has received federal patents for two more of its products. Patent numbers have been assigned to Permalogic controllers and the Sta-Dry Slim-7 trailer harness.

Permalogic all-electronic noseboxes are designed to control the trailer interior dome lamps and charge the liftgate batteries. Permalogic units are designed for fleets making multiple deliveries such as food service and other refrigerated operations. The Permalogic products direct power where it's needed the most, resulting in maximum safety, efficiency and reduced costs.
The Permalogic family of products includes the Permalogic dome lamp controller; Permalogic TC Liftgate battery charging system; Permalogic TC Plus, which combines the benefits and capabilities of the Permalogic and the Permalogic TC in a single nosebox; and the Permalogic Reefer, an all-weather, all electronic controller, designed to manage power to trailer dome lamps in trailers with refrigeration units.
The Sta-Dry Slim-7 trailer harness is a thin, molded seven-way connection that fits through the frame rails of any trailer. Like all Phillips trailer harness systems, the Sta-Dry Slim-7 has molded connections between modules with specially designed ribs and o-rings which keeps moisture and contaminants from penetrating the electrical system, eliminating corrosion problems.
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