Verlin J Wirth

US Patent:

6470692, Oct 29, 2002

Filed:

Nov 8, 2001

Appl. No.:

10/008687

Inventors:

David B. Ziegler - Eden Prairie MN
Verlin Wirth - Apple Valley MN
Phillip R. Boudewyns - Apple Valley MN
Ta Yang - St. Paul MN

Assignee:

Thermo King Corporation - Minneapolis MN

International Classification:

B60H 132

US Classification:

62 89, 62239, 454118

Abstract:

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.

US Patent:

6508076, Jan 21, 2003

Filed:

Aug 29, 2000

Appl. No.:

09/651662

Inventors:

Randal Gast - Chaska MN
David B. Ziegler - Eden Prairie MN
Doug Lenz - Savage MN
Ming Zhang - Apple Valley MN
Verlin Wirth - Apple Valley MN

Assignee:

Thermo King Corporation - Minneapolis MN

International Classification:

F25D 1704

US Classification:

62408, 62404, 62239, 62 89, 454137

Abstract:

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.

US Patent:

6364388, Apr 2, 2002

Filed:

Jan 28, 2000

Appl. No.:

09/493348

Inventors:

David B. Ziegler - Eden Prairie MN
Verlin Wirth - Apple Valley MN
Jerry Kiesner - Milaca MN

Assignee:

Thermo King Corporation - Minneapolis MN

International Classification:

B60P 305

US Classification:

296 241, 454118, 454 88, 410121, 410129

Abstract:

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.