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:
Jun. 22, 2004
Filed:
Jan. 30, 2003
Timothy Chang, Wayne, NJ (US);
Sherwood Forlee, Davis, CA (US);
Eugene Hans Kung, Mount Vernon, NY (US);
Kaijen Hsiao, Waltham, MA (US);
Flavio Poehlmann-Martins, Media, PA (US);
Vivrant, L.L.C., Princeton, NJ (US);
Abstract
An apparatus comprises a duct having a fluid outlet for fluid propelled through the duct and a container positions a substance for diffusion into the fluid through an opening. A movable valve selectively places the opening in fluid communication with the fluid in the duct and seals the opening to prevent introduction of the substance into the fluid. In a particularly advantageous embodiment the apparatus is a blow dryer in which a heating element disposed in the duct heats air flowing therethrough. The substance can be a fragrance or a conditioner introduced into the air stream. According to other aspects of the invention, the container is interchangeable with containers containing other substances, such as different fragrances, and is completely sealed when the blow dryer is not in use. In another embodiment, a container attached to the duct ejects the substance in a spray external of the duct proximate to the duct outlet. In a particularly preferred form of that embodiment, the spray cartridge is interchangeable with a diffusion cartridge.