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:
Jul. 04, 2000
Filed:
Oct. 19, 1998
Hidehei Kageyama, Kawagoe, JP;
Yoshihide Mitsuya, Kawagoe, JP;
Kotobuki & Co., Ltd., , JP;
Abstract
In a mechanical pencil capable of double-chuck and side-knock type lead control functions, a slide member is axially slidably fitted in a barrel fixedly provided at its front end with a head cap, a knocking member is pivotally supported in an opening formed in the barrel to operate the slide member so that a lead projecting back chuck on which a chuck ring is loosely fitted is advanced against the resilience of a chuck spring biasing the lead projecting back chuck backward to project a lead, a sleeve is fitted on the back chuck, an inner barrel is fitted on the sleeve, and a lead holding front chuck is placed in the head cap and is biased backward by a spring.