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. 01, 1990
Filed:
Feb. 26, 1988
Robert D Aikins, Norristown, PA (US);
Lee R Bandy, West Chester, PA (US);
William R Davis, Downingtown, PA (US);
Robert E Delaney, Devon, PA (US);
Michael E Guyer, Coatesville, PA (US);
Edward D Lovera, Aston, PA (US);
Thomas A Scamuffa, Parkesburg, PA (US);
LG Industries, Inc., Wagontown, PA (US);
Abstract
Metal carrier rolls having a mass of at least about 100 pounds for use in paper making, non-woven fabric making and other applications are balanced to within a predetermined first residual unbalance value for rotation of the roll up to a predetermined maximum service speed of at least about 100 RPM, preferably within a Balance Quality Grade G-6.3 residual unbalance value, by fabricating a pair of substantially identical removably mountable metal journals, each being balanced to within a second residual unbalance value less than the first residual unbalance value, preferably to within a Balance Quality Grade G-2.5 residual unbalance value, fabricating a body assembly including a hollow metal body with a pair of metal end heads each being adapted for removably mounting a journal, the body assembly being balanced to within a third residual unbalance value less than the difference between the first and twice the second residual unbalance values, and, preferably, within a Balance Quality Grade G-2.5 residual unbalance value, and removably mounting the pair of journals to the end heads to form the roll balanced to within the first residual unbalance value.