US 6,843,947 B2Granted

Method for roughing surfaces of concrete casted blocks

AssigneeTecho-Bloc Inc.

InventorsCharles Ciccarello, Yvon Laporte, Hugo Laporte

Life of this patent

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Abstract

A method for roughing surfaces and edges of concrete casted blocks, comprising a block support surface having a plurality of surface sections. A first of the surface sections has a rear end thereof above an adjacent front end of a second of the surface sections to create a ledge for projecting a leading edge portion of concrete blocks conveyed over the first surface section. A first roughing device has a plurality of impacting elements thereon for roughing concrete blocks. The first roughing device is disposed generally above the rear end of the first surface section for abrading a projecting leading edge portion of each concrete block as they are conveyed over the rear end. A conveyor displaces concrete blocks over the first and second surface sections, the blocks being tilted when reaching a predetermined position over the ledge to avoid being abraded by the roughing device.

Claims4

Dependent claims

A method for roughing portions of solid concrete casted blocks comprising the steps of:

(i) conveying a plurality of concrete casted blocks disposed in side-by-side aligned relationship over a block support surface having a straight front edge and a rear end edge disposed parallel to one another, at least a section of said support surface being inclined to create a ledge at said rear end edge extending across a travel path of said plurality of concrete casted blocks disposed in side-by-side relationship for projecting an aligned transverse leading edge portion of all said concrete blocks conveyed over said ledge;
(ii) providing at least a roughing device having a plurality of impacting elements thereon and disposed a predetermined distance above said block support surface forwardly of said rear end edge;
and
(iii) impacting said transverse leading edge portions of said concrete blocks in side-by-side relationship by said plurality of impacting abrading elements as said concrete blocks are projected over said ledge by conveying means, said blocks being tilted when reaching a predetermined position over said ledge.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 10/389,985Filed 18 Mar 2003 · division
Priority: CA 234522426 Apr 2001
Published: US 2003/0173697 A118 Sep 2003
Granted: 18 Jan 2005
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B28D 1/006
Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor: artificial…
B28B 11/0818
For reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads: for roughening, profiling, corrugating
B28B 11/089
For reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads: using impacting tools
B28D 1/181
By milling, e.g. channelling by means of milling tools: using cutters loosely mounted on a turning tool support

Family

Application09/911,121Parent of this division · filed 24 Jul 2001
US 6,575,727 B2Parent of this division · filed 10 Jun 2003
US 2003/0173697 A1Pre-grant publication · published 18 Sep 2003
US 2002/0158363 A1Published application
US 6,843,947 B2This patent

From the US filing history. Foreign family members aren’t listed.