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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 6461142 B1

PDFFull Text
Date of Patent:
Oct. 08, 2002

Filed:

Nov. 12, 1998

Injection device

Applicant:
Inventors:

Shinji Kadoriku, Takarazuka, JP;

Takaaki Higashida, Kadoma, JP;

Hiroshi Yutani, Katano, JP;

Tadao Murata, Sanda, JP;

Assignee:

Matsushita Electric Industrial Co., Ltd., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Jan H Silbaugh

Assistant Examiner:

Emmanuel S Luk

Int. Cl.
CPC ...
B29C 4/553 ; B29C 4/556 ;
U.S. Cl.
CPC ...
B29C 4/553 ; B29C 4/556 ;
Abstract

An injection device includes a cylinder, a plunger and a driving device. The cylinder has a port for supplying molding material into the cylinder, and the molding material supplies into the cylinder is compressed by the plunger. The plunger has a groove extending circumferentially around an outer wall of a large-diameter portion of the plunger, and the clearance between the outer wall of the large-diameter portion of the plunger and the inner wall of the cylinder is determined by a specified equation.

Find Patent Forward Citations

Kadoriku, Shinji. (2002). Injection device (U.S. Patent No. 6461142). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6461142

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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