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:
Dec. 31, 1991
Filed:
Feb. 08, 1991
Applicant:
Inventor:
Benedikt Rohner, Zurich, CH;
Assignee:
Biella-Neher AG, Biel, CH;
Primary Examiner:
Int. Cl.
CPC ...
B42F / ;
U.S. Cl.
CPC ...
402 35 ; 402 34 ; 402 36 ; 402 / ;
Abstract
In a loose leaf binder the left (2a, 3a) and the right prong parts (2b, 3b) are each disposed on a common carrier plate (4). The carrier plates (4) are pivotably connected to a base plate (5) and can be depressed using a lever (8) against the force of coil springs (11) into a position in which they lie flat on the base plate. By pulling gently on the end of the catch (10) the binder is released and opens due to the force of the springs (11). Even in the opened state it is still possible to turn the sheets from one prong part to another without such turning being hindered by the lever.