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:
Aug. 23, 1988
Filed:
Aug. 24, 1987
John S Wright, Milwaukee, WI (US);
Other;
Abstract
The ring binding mechanism includes one or more partial rings which are slidably mounted in arcuate tracks in a base plate member for rotational movement between a loading position wherein an opening between the ends of the rings is accessible to install or remove sheets of paper or the like and a loaded position wherein the opening is located beneath the surface of the base plate member. The tracks, base plate member and rings include parts which cooperate to releasably lock the rings in the loaded position. In one embodiment, the ring binding mechanism is installed on a one-piece cover including a spine section defined between laterally spaced hinged sections. The spine section is either mounted directly on the base plate member or sandwiched between the base plate member and a back plate member which are secured together with snap-in fingers. The binder can be transported in an unassembled condition and assembled at the point of use by the user.