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:
Feb. 21, 1989
Filed:
Oct. 26, 1987
Applicant:
Inventor:
Owen S Jones, Janesville, WI (US);
Assignee:
Parker Pen (Benelux) B.V., East Sussex, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K / ; B43K / ;
U.S. Cl.
CPC ...
401 86 ; 401 65 ; 401251 ; 411517 ; 411521 ;
Abstract
The lead reservoir and feed mechanism of a knock type mechanical pencil is secured to the tubular barrel in which it is housed by a resilient locking sleeve positioned in a groove near the front of the feed mechanism and a spring compressed between a rearwardly facing internal abutment on the feed mechanism. The spring urges the lead reservoir and feed mechanism rearwardly into the barrel to a position where an external flange on the locking sleeve abuts the front end of the barrel.