|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 5|
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 ...
The invention claimed is: 1. A chute system for conveying articles from an upper elevation to a lower elevation within a building, said chute system comprising: a vertical post defining an axis of rotation; an outer wall concentric with said post; and a helical chute wound around said vertical post and being secured at an inner edge to said post and at an outer edge to said outer wall; and wherein said chute comprises a plurality of chute segments secured together in stepped relationship to each other: each chute segment having an upper wall disposed at...