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:
Feb. 22, 1977
Filed:
Aug. 18, 1975
Heinz E Hertel, Mount Prospect, IL (US);
Bell & Howell Company, Chicago, IL (US);
Abstract
The disclosure relates to a web roll retainer for retaining a web roll and for maintaining constant resistance to rotation of the roll as the web is withdrawn. The web roll retainer includes an axial support member, a roll end support mounted at each end of the support bar in non-rotational relation to the support bar and end support holding means for maintaining the end supports in fixed axial relation on the support bar. Each end support includes an annular bearing surface for supporting a web roll extending between the end supports and for providing constant resistance to web roll rotation through friction resulting from the gravitational force between the web roll and the end support annular bearing surfaces.