The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2002
Filed:
Aug. 14, 2001
Darren F. Tucker, Houston, TX (US);
Applied Optoelectronics, Inc., Sugar Land, TX (US);
Abstract
An adapter for coupling an air duct having an air duct mating end to a fan-driven vent unit having an air intake opening. The air duct may be a circular cross sectional air duct, for example, and the vent unit may comprise a HEPA or other filter. The adapter has a first mating section compatible with the air duct mating end (e.g., circular) for coupling the adapter to the air duct mating end, and a second mating section for coupling the adapter to the air intake opening of the fan-driven vent unit. Side walls of the adapter, between or part of the first and second mating sections, have supply-relief holes for providing a supply of air to the air intake opening when the air duct provides no air supply (e.g., when it is closed off by a damper system).