Sheet separation pile feeder
US5228675A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1992 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Jan 28, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H3/48
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet separation pile feeder (34) includes a sheet separation enhancer comprising first and second tubular blow members (42, 42'), each having a plurality of specially-arranged blow holes (44, 44' 44a, 44'a) therein, extending across a leading side (22) of a pile from which forward-most sheets (18) are fed. Each tubular blow member is rotatably mounted so that it can rotate about its axis relative to the pile and a pressure means pressurizes interiors of the tubular blow members for creating streams of fluid (52, 52') coming from the blow holes directed toward the leading side of the pile. Thus, each of the tubular blow members can be rotated to adjust directions at which the streams of fluid from the holes contact the leading side of the pile to enhance feeding of the forward-most sheet thereof being fed from the pile. The first and second blow tubes are parallel to one another and to the sheets in the pile. The second tubular blow member is positioned below the first tubular blow member in planes approximately parallel to the leading side of the pile. Each of the first and second rotatable tubular blow members has an outer regulator tube (56, 56') linearly slidably mounted ther…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.