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:
Jan. 30, 2007
Filed:
Mar. 31, 2004
Paul Philip Brown, Ramona, CA (US);
Jens Ole Sorensen, Rancho Santa Fe, CA (US);
Paul Philip Brown, Ramona, CA (US);
Jens Ole Sorensen, Rancho Santa Fe, CA (US);
Sorensen Research and Development Trust, San Diego, CA (US);
Abstract
A hollow plastic product with a substantially tubular section, two open ends and a thread at the outside of one end of the product is manufactured by injection molding a plastic product with a substantially tubular section, an open end, a closed end and a thread at the outside of the closed end. An inner core of the core mold part is retracted from within the end of the mold cavity in which the thread is formed so that when the molded product is removed from the cavity mold part, the neck is compressed to partially occupy the region vacated upon removal of the inner core, whereby the thread is removed without damaging the thread. Removal of the molded product from the core mold part is at least helped by injecting compressed air into the closed end of the product. The closed end is then opened.