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:
Feb. 23, 1982
Filed:
Feb. 27, 1980
Applicant:
Inventor:
Artur Schworer, Senden, DE;
Assignee:
Peri-Werk Artur-Schworer KG, Weissenhorn, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04G / ;
U.S. Cl.
CPC ...
249 18 ; 249 38 ; 249 43 ; 249 45 ; 249192 ;
Abstract
A formwork panel for constructing concrete walls having a forming skin supported by a steel frame in which a plurality of holes are provided for receiving a tie rod. The holes are provided with a plastic bushing which extends through and is fastened in the frame. The bushing has a conically tapered bore, the surface of which is continuous and smooth. This makes the removal of concrete from the bore extremely easy (FIG. 3).