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Apparatus And Method For Drawing A Bank Tube Trapped In A Drum Of A Steam Generator
Abstract: The invention relates to an apparatus (200) is provided for drawing a bank tube (102) trapped in a drum (100). The apparatus (200) comprises a mandrel (202) configured to be received by a bank tube (102), an expander (204) configured to receive the mandrel (202) and a plurality of grippers (216). The mandrel (202) comprises an enlarged portion (304). The expander (204) defines a plurality of slots (228) along its circumference. The grippers (216) are configured to be received by the slots (228). The plurality of grippers (216) are held together by a tensioning member (402). The grippers (216) are pressed against the mandrel (202) by the tensioning member (402) such that the tensioning member (402) allows at least a portion of the gripper (216) to rise through the slot (228) when the enlarged portion (304) of the mandrel (202) is slid against surface of the grippers (216).
Notices, Deadlines & Correspondence
Patent Information
Applicants
BHARAT HEAVY ELECTRICALS LIMITED
Inventors
1. RANGASAMY YOGANATHAN
2. PARAMASIVAM SOUNDARAPANDIYAN
3. NAGASUBRAMANIAN PRASANNA
4. THANGAVEL GUNASEKARAN
5. RAMANATHAN ANAND
Specification
The invention relates to an apparatus (200) is provided for drawing a bank tube (102) trapped in a drum (100). The apparatus (200) comprises a mandrel (202) configured to be received by a bank tube (102), an expander (204) configured to receive the mandrel (202) and a plurality of grippers (216). The mandrel (202) comprises an enlarged portion (304). The expander (204) defines a plurality of slots (228) along its circumference. The grippers (216) are configured to be received by the slots (228). The plurality of grippers (216) are held together by a tensioning member (402). The grippers (216) are pressed against the mandrel (202) by the tensioning member (402) such that the tensioning member (402) allows at least a portion of the gripper (216) to rise through the slot (228) when the enlarged portion (304) of the mandrel (202) is slid against surface of the grippers (216).
Documents
Orders
| Section | Controller | Decision Date |
|---|---|---|
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 201931029950-IntimationOfGrant29-02-2024.pdf | 2024-02-29 |
| 1 | 201931029950-STATEMENT OF UNDERTAKING (FORM 3) [24-07-2019(online)].pdf | 2019-07-24 |
| 2 | 201931029950-PatentCertificate29-02-2024.pdf | 2024-02-29 |
| 2 | 201931029950-PROOF OF RIGHT [24-07-2019(online)].pdf | 2019-07-24 |
| 3 | 201931029950-Written submissions and relevant documents [27-02-2024(online)].pdf | 2024-02-27 |
| 3 | 201931029950-POWER OF AUTHORITY [24-07-2019(online)].pdf | 2019-07-24 |
| 4 | 201931029950-FORM 1 [24-07-2019(online)].pdf | 2019-07-24 |
| 4 | 201931029950-Correspondence to notify the Controller [09-02-2024(online)].pdf | 2024-02-09 |
| 5 | 201931029950-US(14)-HearingNotice-(HearingDate-12-02-2024).pdf | 2024-01-18 |
| 5 | 201931029950-FIGURE OF ABSTRACT [24-07-2019(online)].pdf | 2019-07-24 |
| 6 | 201931029950-DRAWINGS [24-07-2019(online)].pdf | 2019-07-24 |
| 6 | 201931029950-COMPLETE SPECIFICATION [27-01-2022(online)].pdf | 2022-01-27 |
| 7 | 201931029950-FER_SER_REPLY [27-01-2022(online)].pdf | 2022-01-27 |
| 7 | 201931029950-DECLARATION OF INVENTORSHIP (FORM 5) [24-07-2019(online)].pdf | 2019-07-24 |
| 8 | 201931029950-OTHERS [27-01-2022(online)].pdf | 2022-01-27 |
| 8 | 201931029950-COMPLETE SPECIFICATION [24-07-2019(online)].pdf | 2019-07-24 |
| 9 | 201931029950-FER.pdf | 2021-10-18 |
| 9 | 201931029950-FORM 18 [12-08-2019(online)].pdf | 2019-08-12 |
| 10 | 201931029950-FER.pdf | 2021-10-18 |
| 10 | 201931029950-FORM 18 [12-08-2019(online)].pdf | 2019-08-12 |
| 11 | 201931029950-COMPLETE SPECIFICATION [24-07-2019(online)].pdf | 2019-07-24 |
| 11 | 201931029950-OTHERS [27-01-2022(online)].pdf | 2022-01-27 |
| 12 | 201931029950-DECLARATION OF INVENTORSHIP (FORM 5) [24-07-2019(online)].pdf | 2019-07-24 |
| 12 | 201931029950-FER_SER_REPLY [27-01-2022(online)].pdf | 2022-01-27 |
| 13 | 201931029950-COMPLETE SPECIFICATION [27-01-2022(online)].pdf | 2022-01-27 |
| 13 | 201931029950-DRAWINGS [24-07-2019(online)].pdf | 2019-07-24 |
| 14 | 201931029950-FIGURE OF ABSTRACT [24-07-2019(online)].pdf | 2019-07-24 |
| 14 | 201931029950-US(14)-HearingNotice-(HearingDate-12-02-2024).pdf | 2024-01-18 |
| 15 | 201931029950-Correspondence to notify the Controller [09-02-2024(online)].pdf | 2024-02-09 |
| 15 | 201931029950-FORM 1 [24-07-2019(online)].pdf | 2019-07-24 |
| 16 | 201931029950-POWER OF AUTHORITY [24-07-2019(online)].pdf | 2019-07-24 |
| 16 | 201931029950-Written submissions and relevant documents [27-02-2024(online)].pdf | 2024-02-27 |
| 17 | 201931029950-PatentCertificate29-02-2024.pdf | 2024-02-29 |
| 17 | 201931029950-PROOF OF RIGHT [24-07-2019(online)].pdf | 2019-07-24 |
| 18 | 201931029950-STATEMENT OF UNDERTAKING (FORM 3) [24-07-2019(online)].pdf | 2019-07-24 |
| 18 | 201931029950-IntimationOfGrant29-02-2024.pdf | 2024-02-29 |
Search Strategy
| 1 | 201931029950seaerchE_23-09-2021.pdf |
| 1 | 201931029950serAE_29-01-2022.pdf |
| 2 | 201931029950seaerchE_23-09-2021.pdf |
| 2 | 201931029950serAE_29-01-2022.pdf |