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:
May. 15, 2012
Filed:
Jun. 09, 2009
Peter William Gibson, Maple Ridge, CA;
Juha Rautiainen, Lahti, FI;
Pertti Auvinen, Hollola, FI;
Mika Hyysti, Lahti, FI;
Jarkko Kaislaoja, Lahti, FI;
Peter William Gibson, Maple Ridge, CA;
Juha Rautiainen, Lahti, FI;
Pertti Auvinen, Hollola, FI;
Mika Hyysti, Lahti, FI;
Jarkko Kaislaoja, Lahti, FI;
Raute Oyj, Nastola, FI;
Abstract
The invention concerns an apparatus for transferring sheet-like objects from a stack, said apparatus including separate lifting elements gripping by suction to the upper surface of the sheet-like object to be transferred, positioned in a row extending over the stack of the sheet-like objects, and transfer elements for transferring the lifted sheet-like object. The suction effect of the lifting elements is controlled by means of a control device including a light source making a substantially line-shaped illumination pattern. The illumination of the light source is focused at an inclined angle to the surface of the sheet stack, substantially parallel to the lifting element row. A camera means for observing the illumination pattern forwards information about the uniformity of the uppermost layer of the stack.