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. 21, 1981
Filed:
May. 04, 1979
Robert C James, Sheboygan, WI (US);
Dennis P Horsman, Sheboygan, WI (US);
Richard D Sorenson, Sheboygan, WI (US);
Hayssen Manufacturing Company, Sheboygan, WI (US);
Abstract
Method of and apparatus for wrapping reams of paper or the like in which the ream being wrapped is placed on an elevator mechanism at a lower level and raised by the elevator mechanism to an upper level. The elevator mechanism comprises a central support and two outboard supports extending endwise of the ream. The outboard supports are movable inwardly from an outer position wherein they are spaced outwardly from the central support. The outboard supports occupy their outer position as the ream is placed on the supports and while the ream is being raised. As the ream is raised, it engages a wrapper sheet and portions of the wrapper sheet fold down on the sides of the ream. When the ream is raised, underfolders move in under the ream from opposite sides of the ream to fold portions of the sheet in under the bottom of the ream. The outboard supports move inwardly toward the central support to clear the way for the underfolders to move in, and are then returned to the lower level and moved out to their outboard position. The central support is moved down to the lower level and the underfolders move into the region vacated by the central support. The ream is then pushed off the underfolders and the latter are retracted. As the ream is pushed forward, the ends of the wrapper sheet are tucked in on the ends of the ream by moving a pair of rearward tuckers forward from a retracted position and by moving the ream past a pair of fixed forward tuckers. The rearward tuckers are moved outwardly away from the ends of the ream as they return to retracted position to a position clear of the next ream being raised.