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:
Oct. 15, 1991
Filed:
Feb. 01, 1990
Takashi Ichihara, Fujisawa, JP;
Yoshio Hirai, Yokohama, JP;
Lion Corporation, , JP;
Abstract
A dispensing container for a viscous material such as a pasty product capable of readily and smoothly carrying out the insertion of a piston into a container body while ensuring the sealing between the piston and the container body. The dispensing container includes a gap defining structure provided on an annular piston guide region defined on the inner surface of the container body so as to define at least one gap between the piston and the inner surface of the container body while ensuring the contact between the piston and the inner surface of the container body. The gap defining structure is formed so as to permit the gap to be larger in size on the insertion initiating side of the piston guide region than on the insertion terminating side of the piston guide region. For this purpose, at least one groove or roughened surface section may be provided on the piston guide region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile