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A Method Of An Improved Mechanical Vibration Exciter For Evaluation Of Modal Characteristics Of Specimen

Abstract: Disclosed is a method and improved system of mechanical vibration exciter providing unidirectional harmonic motion in vertical, horizontal and axial direction to the testing specimen for evaluation of modal characteristics of support structures and, the system comprises of a plurality of rotatable unbalanced unit placed parallely, and having at least one unbalanced element, a rotary drive (20) to generate rotary motion, a flexible shaft (10) to transfer rotary motion from the drive to shaft (02), a house (01) with mounting faces (21, 22), at least two primary shafts (02, 03) having gears (06, 07), at least two secondary shaft (04, 05) having gears (08, 09), at least four bearing pairs (11, 12, 13, 14), at least two rotating discs (15, 16) and at least two unbalanced weights (17 and 18).

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
19 August 2019
Publication Number
09/2021
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
kolkatapatent@Lsdavar.in
Parent Application
Patent Number
Legal Status
Grant Date
2025-04-15
Renewal Date

Applicants

BHARAT HEAVY ELECTRICALS LIMITED
Regional Office: Regional Operations Division (ROD), Plot No. : 9/1, DJ Block 3rd Floor, Karunamoyee, Salt Lake, Registered Office: BHEL House, Siri Fort, New Delhi-110049, India

Inventors

1. MANISH AGRAWAL
C/o/ BHARAT HEAVY ELECTRICALS LIMITED, HYDERABAD, TELANGANA, INDIA
2. K SRI SAIBABU
C/o/ BHARAT HEAVY ELECTRICALS LIMITED, HYDERABAD, TELANGANA, INDIA
3. ANNAMRAJU SURESH BABU
C/o/ BHARAT HEAVY ELECTRICALS LIMITED, HYDERABAD, TELANGANA, INDIA
4. HARISH KUMAR BIGHANE
C/o/ BHARAT HEAVY ELECTRICALS LIMITED, HYDERABAD, TELANGANA, INDIA

Specification

Disclosed is a method and improved system of mechanical vibration exciter providing unidirectional harmonic motion in vertical, horizontal and axial direction to the testing specimen for evaluation of modal characteristics of support structures and, the system comprises of a plurality of rotatable unbalanced unit placed parallely, and having at least one unbalanced element, a rotary drive (20) to generate rotary motion, a flexible shaft (10) to transfer rotary motion from the drive to shaft (02), a house (01) with mounting faces (21, 22), at least two primary shafts (02, 03) having gears (06, 07), at least two secondary shaft (04, 05) having gears (08, 09), at least four bearing pairs (11, 12, 13, 14), at least two rotating discs (15, 16) and at least two unbalanced weights (17 and 18).

Documents

Application Documents

# Name Date
1 201931033344-DRAWING [29-03-2022(online)].pdf 2022-03-29
1 201931033344-IntimationOfGrant15-04-2025.pdf 2025-04-15
1 201931033344-STATEMENT OF UNDERTAKING (FORM 3) [19-08-2019(online)].pdf 2019-08-19
1 201931033344-US(14)-HearingNotice-(HearingDate-20-03-2025).pdf 2025-02-25
2 201931033344-PROOF OF RIGHT [19-08-2019(online)].pdf 2019-08-19
2 201931033344-PatentCertificate15-04-2025.pdf 2025-04-15
2 201931033344-FER_SER_REPLY [29-03-2022(online)].pdf 2022-03-29
2 201931033344-DRAWING [29-03-2022(online)].pdf 2022-03-29
3 201931033344-Annexure [26-03-2025(online)].pdf 2025-03-26
3 201931033344-FER_SER_REPLY [29-03-2022(online)].pdf 2022-03-29
3 201931033344-OTHERS [29-03-2022(online)].pdf 2022-03-29
3 201931033344-POWER OF AUTHORITY [19-08-2019(online)].pdf 2019-08-19
4 201931033344-FER.pdf 2021-10-18
4 201931033344-FORM 1 [19-08-2019(online)].pdf 2019-08-19
4 201931033344-FORM 3 [26-03-2025(online)].pdf 2025-03-26
4 201931033344-OTHERS [29-03-2022(online)].pdf 2022-03-29
5 201931033344-FER.pdf 2021-10-18
5 201931033344-FIGURE OF ABSTRACT [19-08-2019(online)].pdf 2019-08-19
5 201931033344-FORM 18 [29-08-2019(online)].pdf 2019-08-29
5 201931033344-FORM-26 [26-03-2025(online)].pdf 2025-03-26
6 201931033344-FORM 18 [29-08-2019(online)].pdf 2019-08-29
6 201931033344-DRAWINGS [19-08-2019(online)].pdf 2019-08-19
6 201931033344-COMPLETE SPECIFICATION [19-08-2019(online)].pdf 2019-08-19
6 201931033344-FORM-5 [26-03-2025(online)].pdf 2025-03-26
7 201931033344-COMPLETE SPECIFICATION [19-08-2019(online)].pdf 2019-08-19
7 201931033344-DECLARATION OF INVENTORSHIP (FORM 5) [19-08-2019(online)].pdf 2019-08-19
7 201931033344-Written submissions and relevant documents [26-03-2025(online)].pdf 2025-03-26
8 201931033344-DRAWINGS [19-08-2019(online)].pdf 2019-08-19
8 201931033344-DECLARATION OF INVENTORSHIP (FORM 5) [19-08-2019(online)].pdf 2019-08-19
8 201931033344-Correspondence to notify the Controller [17-03-2025(online)].pdf 2025-03-17
8 201931033344-COMPLETE SPECIFICATION [19-08-2019(online)].pdf 2019-08-19
9 201931033344-DRAWINGS [19-08-2019(online)].pdf 2019-08-19
9 201931033344-FIGURE OF ABSTRACT [19-08-2019(online)].pdf 2019-08-19
9 201931033344-FORM 18 [29-08-2019(online)].pdf 2019-08-29
9 201931033344-US(14)-HearingNotice-(HearingDate-20-03-2025).pdf 2025-02-25
10 201931033344-FORM 1 [19-08-2019(online)].pdf 2019-08-19
10 201931033344-FIGURE OF ABSTRACT [19-08-2019(online)].pdf 2019-08-19
10 201931033344-FER.pdf 2021-10-18
10 201931033344-DRAWING [29-03-2022(online)].pdf 2022-03-29
11 201931033344-FER_SER_REPLY [29-03-2022(online)].pdf 2022-03-29
11 201931033344-FORM 1 [19-08-2019(online)].pdf 2019-08-19
11 201931033344-OTHERS [29-03-2022(online)].pdf 2022-03-29
11 201931033344-POWER OF AUTHORITY [19-08-2019(online)].pdf 2019-08-19
12 201931033344-FER_SER_REPLY [29-03-2022(online)].pdf 2022-03-29
12 201931033344-OTHERS [29-03-2022(online)].pdf 2022-03-29
12 201931033344-POWER OF AUTHORITY [19-08-2019(online)].pdf 2019-08-19
12 201931033344-PROOF OF RIGHT [19-08-2019(online)].pdf 2019-08-19
13 201931033344-DRAWING [29-03-2022(online)].pdf 2022-03-29
13 201931033344-FER.pdf 2021-10-18
13 201931033344-PROOF OF RIGHT [19-08-2019(online)].pdf 2019-08-19
13 201931033344-STATEMENT OF UNDERTAKING (FORM 3) [19-08-2019(online)].pdf 2019-08-19
14 201931033344-FORM 18 [29-08-2019(online)].pdf 2019-08-29
14 201931033344-STATEMENT OF UNDERTAKING (FORM 3) [19-08-2019(online)].pdf 2019-08-19
14 201931033344-US(14)-HearingNotice-(HearingDate-20-03-2025).pdf 2025-02-25
15 201931033344-COMPLETE SPECIFICATION [19-08-2019(online)].pdf 2019-08-19
15 201931033344-Correspondence to notify the Controller [17-03-2025(online)].pdf 2025-03-17
16 201931033344-DECLARATION OF INVENTORSHIP (FORM 5) [19-08-2019(online)].pdf 2019-08-19
16 201931033344-Written submissions and relevant documents [26-03-2025(online)].pdf 2025-03-26
17 201931033344-DRAWINGS [19-08-2019(online)].pdf 2019-08-19
17 201931033344-FORM-5 [26-03-2025(online)].pdf 2025-03-26
18 201931033344-FIGURE OF ABSTRACT [19-08-2019(online)].pdf 2019-08-19
18 201931033344-FORM-26 [26-03-2025(online)].pdf 2025-03-26
19 201931033344-FORM 1 [19-08-2019(online)].pdf 2019-08-19
19 201931033344-FORM 3 [26-03-2025(online)].pdf 2025-03-26
20 201931033344-Annexure [26-03-2025(online)].pdf 2025-03-26
20 201931033344-POWER OF AUTHORITY [19-08-2019(online)].pdf 2019-08-19
21 201931033344-PROOF OF RIGHT [19-08-2019(online)].pdf 2019-08-19
21 201931033344-PatentCertificate15-04-2025.pdf 2025-04-15
22 201931033344-STATEMENT OF UNDERTAKING (FORM 3) [19-08-2019(online)].pdf 2019-08-19
22 201931033344-IntimationOfGrant15-04-2025.pdf 2025-04-15

Search Strategy

1 SearchE_29-09-2021.pdf
1 SEARCHSTRATEGY-E_31-03-2021.pdf
2 SearchE_29-09-2021.pdf
2 SEARCHSTRATEGY-E_31-03-2021.pdf

ERegister / Renewals

3rd: 15 Jul 2025

From 19/08/2021 - To 19/08/2022

4th: 15 Jul 2025

From 19/08/2022 - To 19/08/2023

5th: 15 Jul 2025

From 19/08/2023 - To 19/08/2024

6th: 15 Jul 2025

From 19/08/2024 - To 19/08/2025

7th: 19 Aug 2025

From 19/08/2025 - To 19/08/2026