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:
Jul. 20, 1993
Filed:
Jan. 28, 1992
Carl J Didier, Piqua, OH (US);
Baumfolder Corporation, Sidney, OH (US);
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 thereon with regulator holes (58, 58' 58a, 58'a) therein corresponding to the blow holes for selectively covering and uncovering them with sliding movement of the regulator tubes. Indicia (64, 64', 60, 60') on the tubular blow member and its regulator tube indicate which blow holes are uncovered.