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:
Aug. 18, 2009
Filed:
Sep. 24, 2004
Applicant:
Robert Douglas Koren, Cary, NC (US);
Inventor:
Robert Douglas Koren, Cary, NC (US);
Assignee:
Column & Post, Inc., Fuquay-Varina, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 33/50 (2006.01); B29C 39/22 (2006.01); B29C 39/02 (2006.01); E04B 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for forming a member, such as a column. The invention comprises inner and outer molds that are spaced apart forming a cavity for receiving a viscous material for making the member. A core is inserted within the inner area of inner mold when the viscous material is initially disposed within the mold. Once the material attains a gelled state, an extraction member is inserted within the inner area. A vacuum is applied to the inner area that causes the flexible inner mold to separate from the material and conform to the extraction member allowing for removal.