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. 21, 2015
Filed:
May. 21, 2009
Hirokazu Haraguchi, Yokohama, JP;
Masanori Okumura, Yokohama, JP;
Taichi Itabashi, Yokohama, JP;
Masakazu Igarashi, Yokohama, JP;
Hirokazu Haraguchi, Yokohama, JP;
Masanori Okumura, Yokohama, JP;
Taichi Itabashi, Yokohama, JP;
Masakazu Igarashi, Yokohama, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
A mold for foam molding which can sufficiently prevent burrs from being formed on a molded product, and a foam molding method using the mold are provided. A grooveinto which a packing seal is to be fitted is formed in a mating surfaceof a lower moldso as to extend around a cavity. The groovehas a deep groove portionwhich is deeply recessed from the mating surface, and a shallow groove portionwhich is located on the cavityside with respect to the deep groove portionand which continues to the deep groove portion. A portion of the mating surfacethat extends from its edge on the cavityside down to the groove 6 has a width 'a' of from 0.1 mm to 10 mm. A packing sealhas a base portionwhich is inserted into the deep groove portion, and an overhang portionwhich continues to the base portionand is engaged with the shallow groove portion