continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6550/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :28/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "ACTIVE RECONFIGURABLE STRETCH FORMING"
(51) International classification :B21D 24/00 (71)Name of Applicant :
(31) Priority Document No :2006900369
1)COMMONWEALTH SCIENTIFIC AND INDUSTRIAL
(32) Priority Date :25/01/2006 RESEARCH ORGANISATION
(33) Name of priority country :Australia
Address of Applicant :LIMESTONE AVENUE,
(86) International Application No :PCT/AU2007/000059 CAMPBELL,AUSTRALIAN CAPITAL TERRITORY
Filing Date
:23/01/2007 2612,AUSTRALIA. Australia
(87) International Publication No :WO 2007/085041 (72)Name of Inventor :
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
1)FORSYTH, ROSS
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
This invention concerns an active reconflgurable stretch forming tool, and in another aspect the invention is a method of stretch
forming. The tool comprises an array of extensible shape forming elements which are driven in extension to produce the same force
per unit area across a workpiece during shape forming. An array of limit switches are located in front of the array of shape forming
elements, such that each shape forming element is driven in extension towards a respective limit switch during shape forming. In use,
each limit switch is activated by the workpiece as it is shaped and each switch, upon activation, prevents further extension of the
respective driven element. The tool and method are useful in the forming of three dimensional shapes in solid sheet metal or mesh, to
produce panels for reflector antennas.
No. of Pages : 27 No. of Claims : 20
The Patent Office Journal 24/10/2008 26019