Thermo King Corporation

Verlin Wirth

David B Ziegler

Doug Lenz

Randal W Gast

Phillip R Boudewyns

Ta Yang

Jerry Kiesner

A removable modular duct system for conducting air in a temperature-controlled cargo container. Temperature-controlled air produced and propelled by a refrigeration unit, is conducted along the modular duct system by one or more duct sections and a transition section that conducts air from the refrigeration unit to the duct sections. The air may be discharged laterally via lateral discharge openings in the duct sections. An end section may be coupled to the duct sections to discharge air at the end of the duct system.

Duct system for temperature-controlled cargo containers

An air return bulkhead having a filter for filtering dust, dirt and debris out of an airflow prior to its entry into an evaporator or heat exchanger. The apparatus is particularly designed for use within a climate-controlled space such as a trailer or truck interior. Air pulled into the refrigeration system first enters the air return bulkhead where particles and debris are filtered. The air then travels through the refrigeration system and back into the climate-controlled space.

Air return bulkhead with filter

An air return bulkhead comprising a first bulkhead portion and a second bulkhead portion joined by a convoluted hinge member. The hinge permits the bulkhead portions to be moved relative to each other.

Growing community of inventors

Apple Valley, MN, United States of America

Verlin Wirth