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:
Mar. 20, 1979
Filed:
May. 11, 1977
Hiroshi Takahashi, Yokohama, JP;
Yasutami Muto, Ageo, JP;
Hiroshi Suzuki, Sagamihara, JP;
Shiro Fukuda, Urawa, JP;
Lion Hamigaki Kabushiki Kaisha, Tokyo, JP;
K. T. Manufacturing Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an apparatus for treating the top ends of flexible cords or filaments. It comprises holding means for holding articles having flexible cords, delivery means for delivering said holding means in a predetermined direction, cylindrical grinding means disposed at a position adjacent to a delivery passage for delivering said holding means, and means for rotating said cylindrical grinding means around its own axis and around an axis at right angles to its own axis. By virtue of the feature that the cylindrical grinding means is rotated around its central axis and around the axis rectangularly crossing the central axis, the top ends of flexible cords, such as bristles of toothbrushes, can be polished and ground from all the directions and very smooth and round outer ends can be obtained at high efficiency and high rate. This effect can be further enhanced when a plurality of such cylindrical grinding members are disposed so that rotation directions of every two adjacent cylindrical grinding means are reversed to each other.