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. 15, 2004
Filed:
Jul. 26, 2002
Applicant:
Inventor:
Ching Hsi Chen, Taichung, TW;
Assignee:
Sun Own Industrial Co., Ltd., Changhua, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/406 ;
U.S. Cl.
CPC ...
B29C 4/406 ;
Abstract
A forming method of a foam board includes a hard plastic top plate and a hard plastic bottom plate provided respectively on and under a foam board placed in a mold. In a forming process by heating, the peripheral edges of the hard plastic top and the bottom plate respectively bend downward and upward automatically and extend to stick on the peripheral side edge of the foam board and fusing and adhering with each other to make up an integral peripheral edge so as to elevate the rigidity and safety of the foam board and enable it endure grinding.