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:
Apr. 13, 1976
Filed:
Sep. 16, 1974
George P McInerny, Andalusia, PA (US);
Brandt-Pra, Inc., Cornwells Heights, PA (US);
Abstract
A sheet stacking mechanism neatly stacks a plurality of sheets, which may be of dissimilar sizes, thicknesses and surface quality (finishes), in the original sequence in which the sheets are fed into the mechanism. An outfeed mechanism picks each sheet into the stacker and removes each sheet entering into the stacker away from the throat of the stacker to permit unimpeded entry of the next sheet to the stacker. Anti-skewing devices are employed at various locations to maintain the sheets in proper alignment during stacking. Linkage means having a mechanical advantage greater than one interconnects a biasing spring to a stacker bar to provide elongation of the spring inversely proportional to the distance moved by the bar in response to the accumulation of stacked sheets thereon to render more uniform the force exerted on the bar by the spring means to provide uniform stacking.