WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |

Search International and National Patent Collections
World Intellectual Property Organization
Machine translation
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000669    International Application No.:    PCT/US1979/000103
Publication Date: 06.09.1979 International Filing Date: 26.02.1979
B07C 5/02 (2006.01), B65G 47/256 (2006.01)
Priority Data:
882515 01.03.1978 US
Abstract: front page image
(EN)An apparatus for classifying or orienting articles having surface areas which differ in the characteristic usually referred to as "smoothness" or "roughness". An air stream (28) is directed against the articles (10) to impinge against one of the surface areas. The apparatus is configured so that if the impinged area is relatively smooth, a laminar flow condition will be established which draws the article toward the air stream (28). If the impinged area is relatively rough, on the other hand, the article (10) will be blown outwardly by the air stream (28). One embodiment has particular utility with flat articles (10a & 10b) having opposed surfaces, one of which is relatively smooth and the other of which is rough (being interrupted by ribs or the like discontinuities). The articles are transported leaning against a flat support member (26) see Figure 2 so that a random one of the respective opposed surfaces will move across an air stream which is expelled from a hole in the support member. If the air stream impinges upon the relatively smooth surface, a laminar flow condition is established and the article is not urged away from the wall and remains in its original orientation. If the air stream impinges upon the rough surface, however, laminar air flow does not occur and the article is blown over away from the support member.
(FR)Appareil pour le classement ou l"orientation d"objets presentant des surfaces qui different par leur poli ou leur rugosite. Un jet d"air (28) est dirige sur les objets (10) de facon a frapper l"une des surfaces. La configuration de l"appareil est telle que si la surface frappee par le jet d"air est relativement lisse, l"ecoulement de l"air est laminaire et tire l"objet vers le jet d"air (28). Si cette surface est relativement rugueuse, au contraire, l"objet (10) est repousse vers l"exterieur par le jet d"air (28). Un mode d"execution est particulierement utile pour les articles plats (10a et 10b) presentant deux surfaces opposees, l"une d"entre elles etant relativement lisse et l"autre etant rugueuse (presentant des nervures ou des solutions de continuite de ce type). Les objets sont transportes sur un support plat (26) (voir figure 2) de telle sorte que l"une des surfaces opposees se deplace en traversant un jet d"air soufflant depuis un trou pratique dans le support. Si le jet d"air frappe la surface relativement lisse, l"ecoulement de l"air est laminaire et l"article n"est pas repousse et reste dans son orientation initiale. Si, au contraire, le jet d"air frappe la surface rugueuse, l"ecoulement de l"air n"est pas laminaire et l"objet est rejete du support.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)