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:
Apr. 21, 1987
Filed:
Sep. 14, 1981
Applicant:
Inventor:
Otto Katz, Schwabach, DE;
Assignee:
A. W. Faber-Castell, Stein Bei Nuernberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K / ; B43K / ; B43K / ;
U.S. Cl.
CPC ...
401 85 ; 401 57 ; 401 65 ; 401 89 ; 401 90 ;
Abstract
A mechanical pencil having an exchangeable lead storing container has a feeding mechanism provided at one end with a coupling pin which snugly fits a coupling recess formed in the storing cartridge. The feeding opening connecting the interior of the cartridge with the central passage in the coupling pin has normally a smaller diameter than that of leads stored in the cartridge, and only upon completing the coupling the pin enlarges the feeding opening to such an extent that the stored leads can freely pass one after the other into the feeding mechanism of the pencil.