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:
Nov. 24, 1987
Filed:
Jul. 30, 1986
Aaron A Minion, St. Paul, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
Pancakes of recording tape are packaged using stiff, expanded-plastic spacers, each having a web against which pancakes can rest in a stack of alternating pancakes and spacers. Each web terminates in an annular recess from which at least one deformable protuberance projects, and the core of each pancake is pinched between facing proturberances. A protective or reinforcing rim at the outer periphery of each web is sufficiently thin not to touch the rims so that each pancake can be held tightly against the adjacent webs while the stack is under axial compression, e.g., by a plastic shrinkwrap. By thus restraining both each pancake and its core, there is no core drop, upset or core rotation, problems besetting prior packages of pancakes of magnetic recording tape.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile