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. 02, 1991
Filed:
Jun. 23, 1989
Applicant:
Inventor:
Yuan-Ho Lee, Tainan Hsieng, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B / ; B28B / ; B29C / ; E04G / ;
U.S. Cl.
CPC ...
264 31 ; 249 33 ; 249112 ; 2491141 ; 249183 ; 264313 ; 264334 ;
Abstract
A process for forming a concrete wall having a projecting portion such as those formed at a door, windows or the like, including installing two spaced apart opposite form boards which confine a cavity for receiving concrete, one of which has a groove for forming the projecting portion, lining the wall segments with a cushion member which is made of a flexible and compressible material, pouring concrete into the cavity, and moving simultaneously the form board from the formed concrete in a direction similar to the direction of the projecting portion utilizing a hydraulic drive mechanism.