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An Improved Radial Fan Adaptable To Utilities And Process Industries

Abstract: The present invention discloses an improved radial fan adaptable to utilities and process industries, the fan being drivable by an electric motor, the fan comprising an impeller having a back and/or a center plate (01), the plate (1) being provided with at least one blade (02); a spiral casing (03) internally accommodating the impeller and acting as a diffuser to recover the kinetic energy of the fluid leaVingthe impeller; and an inclined inlet guide valve acting as a fluid flow regUlating means to minimize pressure drop; The at least one blade (02) constitutes a moderate width backward aerofoil blade having a profile including selectively configurable exit angles enabling a smooth ingress and egress of fluid flow.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
07 December 2005
Publication Number
21/2007
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2011-01-07
Renewal Date

Applicants

BHARAT HEAVY ELECTRICALS LIMITED
3RD FLOOR, KARUNAMOYEE, SALT LAKE CITY, KOLKATA-700091.

Inventors

1. SHRI SESHADRI SRINIVASAN
BHARAT HEAVY ELECTRICALS LTD PLOT NO 911 DJ BLOOK, 3RD FLOOR, KARUNAMOYEE, SALT LAKE CITY, KOLKATA-700091.
2. SHRI KRISHNASWAMY GOPALSAMY
BHARAT HEAVY ELECTRICALS LTD PLOT NO 911 DJ BLOOK, 3RD FLOOR, KARUNAMOYEE, SALT LAKE CITY, KOLKATA-700091.
3. SHRI RAGAVAIAH BABU
BHARAT HEAVY ELECTRICALS LTD PLOT NO 911 DJ BLOOK, 3RD FLOOR, KARUNAMOYEE, SALT LAKE CITY, KOLKATA-700091.
4. SHRI KRISHNAN KOIL SUDAKHAR
BHARAT HEAVY ELECTRICALS LTD PLOT NO 911 DJ BLOOK, 3RD FLOOR, KARUNAMOYEE, SALT LAKE CITY, KOLKATA-700091.

Specification

Documents

Application Documents

# Name Date
1 1116-KOL-2005-FORM-27.pdf 2011-10-07
2 1116-KOL-2005-FORM 2.pdf 2011-10-07
3 1116-KOL-2005-FORM 1.pdf 2011-10-07
4 1116-KOL-2005-DESCRIPTION (COMPLETE).pdf 2011-10-07
5 1116-KOL-2005-CORRESPONDENCE.pdf 2011-10-07
6 1116-KOL-2005-CORRESPONDENCE-1.1.pdf 2011-10-07
7 1116-KOL-2005-CORRESPONDENCE 1.2.pdf 2011-10-07
8 1116-KOL-2005-CLAIMS.pdf 2011-10-07
9 1116-KOL-2005-ABSTRACT.pdf 2011-10-07
10 01116-kol-2005-form 3.pdf 2011-10-07
11 01116-kol-2005-form 2.pdf 2011-10-07
12 01116-kol-2005-form 1.pdf 2011-10-07
13 01116-kol-2005-drawings.pdf 2011-10-07
14 01116-kol-2005-description complete.pdf 2011-10-07
15 01116-kol-2005-claims.pdf 2011-10-07
16 1116-KOL-2005-FORM-27-1.pdf 2012-07-24
17 1116-KOL-2005-(01-04-2015)-FORM-27.pdf 2015-04-01
18 1116-KOL-2005-(28-03-2016)-FORM-27.pdf 2016-03-28
19 Other Patent Document [23-03-2017(online)].pdf 2017-03-23
20 Form 27 [30-03-2017(online)].pdf 2017-03-30
21 1116-KOL-2005-RELEVANT DOCUMENTS [16-03-2018(online)].pdf 2018-03-16
22 1116-KOL-2005-RELEVANT DOCUMENTS [23-03-2019(online)].pdf 2019-03-23
23 1116-KOL-2005-22-02-2023-RELEVANT DOCUMENTS.pdf 2023-02-22

ERegister / Renewals

3rd: 29 Apr 2011

From 07/12/2007 - To 07/12/2008

4th: 29 Apr 2011

From 07/12/2008 - To 07/12/2009

5th: 29 Apr 2011

From 07/12/2009 - To 07/12/2010

6th: 29 Apr 2011

From 07/12/2010 - To 07/12/2011

7th: 29 Apr 2011

From 07/12/2011 - To 07/12/2012

8th: 26 Nov 2012

From 07/12/2012 - To 07/12/2013

9th: 02 Dec 2013

From 07/12/2013 - To 07/12/2014

10th: 28 Nov 2014

From 07/12/2014 - To 07/12/2015

11th: 02 Dec 2015

From 07/12/2015 - To 07/12/2016

12th: 03 Dec 2016

From 07/12/2016 - To 07/12/2017

13th: 28 Nov 2017

From 07/12/2017 - To 07/12/2018

14th: 30 Nov 2018

From 07/12/2018 - To 07/12/2019