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.:

US 10532404 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 14, 2020

Filed:

Mar. 08, 2017
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;

Inventors:

Yoshiyuki Sanada, Toyota, JP;

Kazumichi Nakatani, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 3/03 (2006.01); B22F 3/00 (2006.01);
U.S. Cl.
CPC ...
B22F 3/03 (2013.01); B22F 3/004 (2013.01);
Abstract

In molding a compact having portions of an equal thickness on opposite sides of a through-hole, an advancing speed of a holder holding a powder material is adjusted before the holder is advanced and retracted over a die cavity of a die. Specifically, a first preparation of determining in advance a relation between the advancing speed of the holder and a packing density of the powder material packed in the die cavity at each of the portions to be of an equal thickness of the compact on opposite sides of the through-hole is made; and, based on the relation determined in the first preparation, the advancing speed of the holder is adjusted to a speed at which the packing density becomes uniform. Thus, the packing density of the powder material packed in the die cavity can be uniformized, so that the dimensional accuracy of the molded compact can be improved.


Find Patent Forward Citations

Sanada, Yoshiyuki. (2020). Powder material packing method (U.S. Patent No. 10532404). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10532404

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