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. 30, 1991
Filed:
Dec. 01, 1989
Kiyokazu Sakurai, Kamiizumi, JP;
Mitsubishi Pencil Co., Ltd., Tokyo, JP;
Abstract
A liquid coating instrument in which a coating liquid storage part or reservoir is provided in a shaft cylinder, a coating member is provided at the top of the shaft cylinder and a valve means is provided between the coating liquid storage part and the coating member. A chamber is provided between the valve and the coating liquid storage part. A means is provided that interrupts the communication between the chamber and the coating liquid storage part when knocking occurs and the chamber then comes into communication with the coating member, interrupting the communication between the chamber and the coating member when knocking is over and the chamber again communicates with the coating liquid storage part. Thus, only a maximum volume of the coating liquid, that is stored in the chamber, can be supplied to the coating member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile