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. 24, 1993
Filed:
Sep. 23, 1991
Applicant:
Inventor:
Isamu Takahashi, Tokyo, JP;
Assignee:
Mutoh Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; B43L / ;
U.S. Cl.
CPC ...
3461 / ; 346 49 ; 33 181 ;
Abstract
A penstocker for an automatic drafting machine in which a shutter 15 is slidably mounted on a peripheral wall 13b of the penstocker's main body 10 such that a desired one or more slits 20, 21 and 22, formed on the peripheral wall 13b, are shielded thereby forming a predetermined pattern indicative of a presence or absence of the penstocker main body, a type of pen held by the penstocker main body and an origin of the penstocker main body.