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:
May. 02, 1989
Filed:
Jan. 25, 1988
Wyman H Stackhouse, Manhattan Beach, CA (US);
Ian M Williamson, Redondo Beach, CA (US);
Other;
Abstract
There is herein described an improved laser smoke particulate/odor filter including an upstream gross particulate portion that both filters and disperses the smoke, a single charcoal odor adsorption portion, a downstream particulate portion for removing smaller gross particles, and a final filtering portion for filtering out any remaining undesirable contaminated particulate. Another embodiment utilizes an upstream particulate portion that filters and disperses the smoke followed by a first and second charcoal adsorption portions of unequal sizes that are separated by a second smoke dispersion member disposed between the first and second charcoal odor adsorption portions.