Location History:
- Milton, MA (US) (2003 - 2005)
- Weymouth, MA (US) (2007 - 2014)
- Braintree, MA (US) (2020)
Company Filing History:
11 out of 22 
1 out of 832,880 Years Active: 2003-2020
Title: Innovations of Alexander L Butler
Introduction
Alexander L Butler is a notable inventor based in Weymouth, MA (US). He has made significant contributions to the field of underwater acoustics, holding a total of 12 patents. His work focuses on developing advanced transduction apparatuses that enhance acoustic energy radiation at low frequencies.
Latest Patents
Among his latest patents is the "End Driven Bender Transduction Apparatus." This innovative underwater acoustic transducer is capable of radiating acoustic energy at low frequencies. It features a resonant low-frequency bender-type transducer driven at its end, supported by a piezoelectric stack of material. The inner and outer parts of the transducer operate in opposite directions, creating a bending motion of a radiating beam, plate, or disc. The small piezoelectric motions at the beam supports are magnified by the leveraged motion of the bending beam(s), resulting in significant output at low frequencies.
Another notable patent is the "Quad and Dual Cantilever Transduction Apparatus." This electro-mechanical transducer provides a very low-frequency wideband response from benders using piezoelectric cantilevers or center-mounted free edge discs. It achieves additive output between the resonant frequencies, making it effective at great depths under equivalent free-flooded conditions. The use of silicone rubber further improves the response by reducing the acoustic cancellation associated with the dipole mode of vibration of the bender.
Career Highlights
Throughout his career, Alexander has worked with various companies, including Image Acoustics, Inc. His innovative designs and patents have significantly impacted the field of underwater acoustics.
Collaborations
Alexander has collaborated with his coworker, John L Butler, contributing to the development of advanced acoustic technologies.
Conclusion
Alexander L Butler's contributions to underwater acoustics through his innovative patents and collaborations highlight his importance in the field. His work continues to influence the development of acoustic transduction technologies.