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:
Jul. 18, 2017
Filed:
May. 21, 2012
Gene Michael Altonen, West Chester, OH (US);
Charles John Berg, Jr., Wyoming, OH (US);
Ralph Edwin Neufarth, Liberty Township, OH (US);
Gary Francis Schiller, Asheboro, NC (US);
John Moncrief Layman, Liberty Township, OH (US);
Rainer Scharrenberg, Marburg, DE;
Gene Michael Altonen, West Chester, OH (US);
Charles John Berg, Jr., Wyoming, OH (US);
Ralph Edwin Neufarth, Liberty Township, OH (US);
Gary Francis Schiller, Asheboro, NC (US);
John Moncrief Layman, Liberty Township, OH (US);
Rainer Scharrenberg, Marburg, DE;
IMFLUX INC, Hamilton, OH (US);
Abstract
Disclosed herein is a method of injection molding at low, substantially constant melt pressures. Embodiments of the disclosed method now make possible a method of injection molding that is more energy—and cost—effective than conventional high-velocity injection molding processes. Embodiments of the disclosed method surprisingly allow for the filling of a mold cavity at low melt pressure without undesirable premature hardening of the thermoplastic material in the mold cavity and without the need for maintaining a constant temperature or heated mold cavity. Heretofore, it would not have been expected that a constant pressure method could be performed at low pressure without such premature hardening of the thermoplastic material when using an unheated mold cavity or cooled mold cavity.