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:
Jun. 08, 1993
Filed:
May. 17, 1991
Bruno A Rudolf, Monticello, IN (US);
Henry J Landis, II, Monticello, IN (US);
Landis Plastics, Inc., Chicago Ridge, IL (US);
Abstract
Disclosed is a mold and a method for injection molding plastic components in which the conventional horizontal parting line is replaced with an angled parting line to allow for utilization of increased packing pressure without the formation of flashing. By positioning at least the portion of the parting line extending immediately outward of the mold cavity at an acute angle with respect to the separating direction of two adjacent mold sections, the separation distance between adjacent mold sections can be increased above a critical flashing distance while maintaining the span at the angled parting line below the critical flashing distance to preclude flash formation. Specifically, the span at the angled parting line increases in proportion to the sine of the angle between the angled parting line and the separating direction. Accordingly, higher pressures can be employed to allow for increased production rates with angled parting line molds of the present invention in comparison with conventional molds.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile