Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.3709/DEL/2011 A
(19) INDIA
(22) Date of filing of Application :19/12/2011 (43) Publication Date : 21/06/2013
(54) Title of the invention : METAL FOAM BODIES AND ITS PRODUCTION
(51) International classification :B23B
(31) Priority Document No :NA
(32) Priority Date :NA
(33) Name of priority country :NA
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No :NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
:NA
(71)Name of Applicant :
1)DIRECTOR GENERAL, DEFENCE RESEARCH &
DEVELOPMENT ORGANISATION
Address of Applicant :MINISTRY OF DEFENCE, GOVT
OF INDIA, ROOM NO 348, B-WING, DRDO BHAWAN,
RAJAJI MARG, NEW DELHI-110011, INDIA
(72)Name of Inventor :
1)BADE SUDHAKAR
2)SHIBA NARAYAN SAHU
3)NANDAMURI RAMACHANDRA RAO
4)GOKHALE AMOL ANANT
(57) Abstract :
The present invention deals with producing arbitrary shaped closed cell metal foam bodies from foam precursor, such as
aluminium foam precursor melt. The method involves a system comprising of furnace, crucible, a device to add foaming agent
into the crucible, stirrer, mould with cavity, a quick dispensing mechanism for discharge of the molten metal into the mould cavity
and suitable conveyer mechanism for preparation of multiple arbitrary shaped metal foam bodies and withdrawal of mould from
the furnace.
No. of Pages : 27 No. of Claims : 11
The Patent Office Journal 21/06/2013 13458