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:
Jan. 05, 2010
Filed:
Apr. 16, 2008
Hadi C. Boustani, Bethesda, MD (US);
Hadi C. Boustani, Bethesda, MD (US);
Other;
Abstract
A chute system for conveying articles, preferably documents, from an upper to a lower elevation in a building. The system includes a vertical post, an outer wall that is concentric therewith, and a helical chute wound around the post. The chute is secured at an inner edge to the post and at an outer edge to the wall. The chute comprises a plurality of chute segments secured together in stepped relationship to each other. Each chute segment has a triangular upper wall disposed at a first angle to the post and sloping downwardly toward the outer wall. The upper wall is simultaneously disposed at a second angle to the horizontal and slopes generally downwardly toward a lower end of the post. Each chute segment further includes a first flange extending upwardly from the upper wall and a second flange extending downwardly from the upper wall. Adjacent chute segments are secured together by welding the second flange of a first chute segment to the first flange of a second chute segment.