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:
May. 22, 2007
Filed:
Feb. 28, 2005
Applicants:
Bryan R. Kirchmer, Tulsa, OK (US);
Derek Campbell, Sand Springs, OK (US);
Inventors:
Bryan R. Kirchmer, Tulsa, OK (US);
Derek Campbell, Sand Springs, OK (US);
Assignee:
Force Pro, Tulsa, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/64 (2006.01); B30B 15/04 (2006.01); B23P 11/02 (2006.01); B21D 29/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a pre-stressed tie rod and method of manufacture. The pre-stressed tie rod can be used on injection molding machines to increase the length of the tie rod and movement of the platen, wherein the tie rods are loaded to restrict mold separation. The pre-stressed tie rods could also be used with other types of presses.