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:
Nov. 06, 2001
Filed:
Jun. 21, 1999
Haruyuki Sakabe, Aichi-ken, JP;
Tomokazu Sawada, Aichi-ken, JP;
Ryuuichi Masuda, Okazaki, JP;
Hiroyuki Urusidani, Okazaki, JP;
Other;
Abstract
The first suction port is formed between a side die and the peripheral protrusion of an upper die. A release pin insertion hole is formed at the peripheral protrusion of the upper die which forms the upper end portion of the cavity. A release pin is inserted into the release pin insertion hole. The second suction port is formed between the insertion hole and the pin. Alternatively, a plurality of vent holes having permeable sintered metal arranged are formed instead of the release pin to serve as the second suction port. The suction negative pressure of the second suction port is set higher than that of the first suction port. High negative pressure from the second suction port inhibits air from remaining on the low temperature surface portion of the upper die.