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:
Apr. 07, 2009
Filed:
Jan. 08, 2007
Applicants:
Jeong-ho Kim, Gyeonggi-do, KR;
Joon-keun Lee, Seoul, KR;
Young-ju Kang, Seoul, KR;
Inventors:
Assignee:
LS Mtron Ltd., Anyang, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piston head of a hydraulic injection molding machine is screwed with a tie rod inside a hydraulic cylinder of the hydraulic injection molding machine. The piston head has a second screw formed in an inner circumference of a hollow of the piston head and engaged with a first screw formed in an outer circumference of the tie rod. An insert groove having a predetermined shape is formed in the inner circumference of the piston head in front of the second screw.