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:
Jan. 17, 1989
Filed:
Jun. 03, 1987
Applicant:
Inventor:
Edwin Lassle, Langenau, DE;
Assignee:
Robert Krause GmbH & Co. KG, Espelkamp, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B47F / ;
U.S. Cl.
CPC ...
402 39 ; 402 38 ;
Abstract
A ring binder mechanism has a resilient mechanism cover, to be attached in use to a book-shaped binder cover, and two oppositely articulately connected, moveable, ring-rail or ring-coil members carrying ring portions which form rings jointly in pairs, resiliently supported in the mechanism cover to be actuated by means of at least one movable actuating member to open and close the rings. According to the invention, the actuating member is adapted for movement about an axis of rotation aligned substantially perpendicular to the mechanism cover and is provided with a gear coupling it to move the ring-rail or ring-coil members.