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:
May. 04, 1976
Filed:
Dec. 24, 1974
Applicant:
Inventor:
John Thomsen, River Vale, NJ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42F / ;
U.S. Cl.
CPC ...
402 41 ; 402 20 ;
Abstract
The looseleaf binder ring assembly disclosed herein consists of a one-piece backbone formed of a resilient plastic material, which backbone has a plurality of pairs of cooperating fingers formed thereon. The fingers of each pair face one another and are movable between open and closed positions with respect to each other. A slidably mounted actuator bar is provided in the backbone and has cam surfaces formed thereon for respectively opening and closing the fingers when the slide bar is moved between first and second positions. The cam surfaces respectively hold their associated spring fingers in their opened or closed position in accordance with the position of the slide bar.