“A Method Of Producing Improved First Stage Nozzle Segments For High

“A Method Of Producing Improved First Stage Nozzle Segments For High Pressure Steam Turbines”

Abstract: The invention relates to a first stage nozzle segments for high pressure steam turbines comprising of segments (S1-S4) comprising plurality of blade (1) joined together using key arrangement (6,7,9,10) to form a complete nozzle segment ring or first stage nozzle segment; plurality of nozzles (8) between blades (1) on each segment (S1-S4) which smoothly guides the main steam to the flowpath wherein each nozzle has pressure side (4) and suction side (5) profiles; key groove (9,10) configured on respective ends of each segments (S1-S4) to receive packing key; packing keys (6,7) to be configured in key groove (9,10) for assembly of the segments (S1-S4) with the casing of turbine and thereby eliminating the need of producing nozzle segment through fabrication.

Patent Information

Application #

Filing Date

29 August 2017

Publication Number

09/2019

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

lsdavar@ca12.vsnl.net.in

Parent Application

Patent Number

Legal Status

Grant Date

2023-10-30

Renewal Date

Applicants

BHARAT HEAVY ELECTRICALS LIMITED

with one of its Regional offices at REGIONAL OPERATIONS DIVISION (ROD), Plot No.9/1, DJ Block 3RD FLOOR, Karunamoyee, Salt Lake City, Kolkata-700091, having its registered office at BHEL House, Siri Fort, New Delhi-110049, INDIA.

Inventors

1. RAMESH KUMAR

BHEL, STE, HEEP, Ranipur, Haridwar – 249403, Uttarakhand, India.

2. PREETAM SINGH

BHEL, STE, HEEP, Ranipur, Haridwar – 249403, Uttarakhand, India.

3. SUNIL KUMAR GARG

BHEL, STE, HEEP, Ranipur, Haridwar – 249403, Uttarakhand, India.

4. PRADEEP KUMAR BANSAL

BHEL, STE, HEEP, Ranipur, Haridwar – 249403, Uttarakhand, India.

Specification

DESC:Please find the attached file ,CLAIMS:Please find the attached file

Documents

Application Documents

#	Name	Date
1	201731030478-STATEMENT OF UNDERTAKING (FORM 3) [29-08-2017(online)].pdf	2017-08-29
2	201731030478-PROVISIONAL SPECIFICATION [29-08-2017(online)].pdf	2017-08-29
3	201731030478-POWER OF AUTHORITY [29-08-2017(online)].pdf	2017-08-29
4	201731030478-FORM 1 [29-08-2017(online)].pdf	2017-08-29
5	201731030478-DRAWINGS [29-08-2017(online)].pdf	2017-08-29
6	201731030478-Proof of Right (MANDATORY) [16-11-2017(online)].pdf	2017-11-16
7	201731030478-Proof of Right (MANDATORY) [12-02-2018(online)].pdf	2018-02-12
8	201731030478-DRAWING [28-08-2018(online)].pdf	2018-08-28
9	201731030478-CORRESPONDENCE-OTHERS [28-08-2018(online)].pdf	2018-08-28
10	201731030478-COMPLETE SPECIFICATION [28-08-2018(online)].pdf	2018-08-28
11	201731030478-FORM 18 [03-04-2019(online)].pdf	2019-04-03
12	201731030478-FER.pdf	2020-08-19
13	201731030478-OTHERS [18-02-2021(online)].pdf	2021-02-18
14	201731030478-FER_SER_REPLY [18-02-2021(online)].pdf	2021-02-18
15	201731030478-DRAWING [18-02-2021(online)].pdf	2021-02-18
16	201731030478-CORRESPONDENCE [18-02-2021(online)].pdf	2021-02-18
17	201731030478-US(14)-HearingNotice-(HearingDate-05-10-2023).pdf	2023-09-06
18	201731030478-FORM-26 [30-09-2023(online)].pdf	2023-09-30
19	201731030478-Correspondence to notify the Controller [30-09-2023(online)].pdf	2023-09-30
20	201731030478-Written submissions and relevant documents [19-10-2023(online)].pdf	2023-10-19
21	201731030478-Annexure [19-10-2023(online)].pdf	2023-10-19
22	201731030478-PatentCertificate30-10-2023.pdf	2023-10-30
23	201731030478-IntimationOfGrant30-10-2023.pdf	2023-10-30

Search Strategy

1	search_strategyE_13-08-2020.pdf