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:
May. 02, 1989
Filed:
Jan. 20, 1987
Applicant:
Inventors:
Henri Vidal, 92200 Neuilly-sur-Seine, FR;
Santiago Muelas-Medrano, Madrid, ES;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28B / ; B28B / ; B28B / ;
U.S. Cl.
CPC ...
264 32 ; 249 11 ; 249 13 ; 249 24 ; 249 26 ; 249 47 ; 264333 ; 405146 ; 405150 ;
Abstract
An apparatus for moulding prefabricated curved concrete sections for use in the construction of arched or vaulted structures comprises a curved, upwardly convex mould made up of a series of reusable substantially flat mould plates pivotally supported by vertical pillars of adjustable height. The mould plates are hingedly connected to each other such that the angle of each plate to the adjacent plate is adjustable. The spacing between the vertical pillars is also adjustable, so that the mould plates provide a polygonal mould surface adjustable for moulding prefabricated concrete sections of different curvatures.