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. 30, 2001
Filed:
Feb. 23, 2000
Tsuyoshi Nakamura, Tokyo, JP;
Yamakyu Chain Co., Ltd., Tokyo, JP;
Abstract
A plastic conveyor chain includes a plurality of plastic link elements connected with each other by connecting pins extending through respective pin holes in the link elements. A retainer device retains the connecting pins in the pin holes, and includes a plug which is normally retained by the link element and which is thus prevented from being lost. The plug is movable in a direction intersecting with an axial direction of the connecting pin, between a first position and a second position. In the first position, the plug is partly situated in the pin hole for normally preventing an unintended axial withdrawal of the connection pin from the pin hole. In the second position, the plug is retracted from the pin hole for allowing an intended axial withdrawal of the connecting pin from the pin hole whenever necessary.