[12] Patent
[11] Patent No.:GC0007523  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/125690
Date of the Decision to Grant the Patent:05/Apr/2018

[21] Application No.:GC 2014-28040

[22] Filing Date:12/10/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
30/9/2013
PCT/US2013/062548

[72] Inventors:1- CHANG, Chung،2- LI, Chen،3- CHENG, Arthur،4- JIN, Jing

[73] Owner: HALLIBURTON ENERGY SERVICES, INC., 10200 Bellaire Boulevard, Texas 77072, Houston, USA

[74] Agent: Abu-Gazaleh Intellectual Property L.L.C

  

 

  

[51]IPC:
Int. Cl.: B06B 1/02, 1/06; G01V 1/02, 1/44; H01L 41/18; H04R 17/00 (2006.01)

[56] Cited Documents:

-US 4782910 A (SIMS CLAUDE C.) 8 November 1988
-US 5081391 A (OWEN THOMAS E.) 14 January 1992
 
Examiner: Eng. Imad A. AlAhaidib

[54] ASYMMETRIC BENDER BAR TRANSDUCER
[57] Abstract: Apparatus and techniques are described, such as for obtaining information indicative of an acoustic characteristic of a formation, including using a transducer assembly, comprising a base plate, a first piezoelectric slab and a second piezoelectric slab. The base plate includes a first region extending axially in a first direction beyond the first and second piezoelectric slabs along a specified axis of the base plate and a second region extending axially in a second direction, opposite the first direction, beyond the first and second piezoelectric slabs. In various examples, a length of the first region along the specified axis is different than a length of the second region to provide an asymmetric configuration. In various examples, an anchoring element is mechanically coupled to the base plate at a location corresponding to a node location of a specified acoustic vibration mode.
No. of claims: 21     No. of figures: 13


 

Note: Any interested individual may, within 3 months of publication of the grant, file objection thereof with the Grievance Committee after payment of grievance fees.