Company Filing History:
1 out of 5 
1 out of 832,880 Years Active: 1996-1999
Title: Dan Weiner: Innovator in Gas Liquefaction and Energy Storage
Introduction
Dan Weiner is a notable inventor based in Haifa, Israel. He has made significant contributions to the fields of gas liquefaction and energy storage. With a total of 2 patents, his work focuses on innovative methods and systems that enhance efficiency in these areas.
Latest Patents
Weiner's latest patents include a straightforward method and once-through apparatus for gas liquefaction. This invention relates to methods and systems for liquefaction of gases whose critical temperature is lower than the ambient temperature, such as natural gas, air, nitrogen, and oxygen. The process involves compressing gas to supercritical pressure and cooling it with external refrigeration to achieve a predetermined final temperature. This method ensures that all gas supplied to the apparatus is liquefied without generating any flash gas, allowing for controlled subcooling of the liquefied gas. Additionally, he has developed modifications of the apparatus that utilize various refrigeration means, including an open air cycle and Compressed Air Energy Storage (CAES).
Another significant patent by Weiner is a compressed air energy storage system. This system utilizes compressed air stored in a cavity for electric power and cold production. During periods of excess power production, atmospheric air is compressed and cooled in stages using energy from a motor/generator. The system separates condensed water from the air, which is then stored. When energy demand arises, the stored compressed air is heated using low-grade energy sources and expanded to generate electricity.
Career Highlights
Throughout his career, Dan Weiner has worked with the Israel Electric Corporation, Ltd. His experience in the energy sector has greatly influenced his innovative approaches to gas liquefaction and energy storage.
Collaborations
Weiner has collaborated with notable individuals such as Isaac Shnaid and Shimshon Brokman. Their combined expertise has contributed to the development of his innovative technologies.
Conclusion
Dan Weiner's contributions to gas liquefaction and energy storage demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of the challenges in these fields and offer practical solutions that can impact energy production and consumption.