Praxair Technology, Inc.

Richard C Fitzgerald

Bayram Arman

Arun Acharya

John Henri Royal

James Joseph Volk

Dante Patrick Bonaquist

Minish Mahendra Shah

M Mushtaq Ahmed

Jalal Hunain Zia

M Abdul-Aziz Rashad

John Bernard Saunders

Al-Khalique Shariff Hamilton

Norm Henry White

Mushtaq Ahmed

A superconducting magnet system wherein a cryocooler provides refrigeration to a cryogenic shield for the superconducting magnet and a heat pipe extends from the cryogenic shield to a cryogen vessel for the provision of supplementary refrigeration.

Superconducting magnet system with supplementary heat pipe refrigeration

A system for cooling one or more discrete superconducting devices wherein a primary refrigerator subcools cryogenic liquid for desubcooling in the devices and subsequently resubcools this liquid in a recirculation loop, and additional cryogenic liquid is maintained in a subcooled condition within a reserve storage container by diversion of some of the refrigeration generated by the primary refrigerator into the reserve storage container.

Cryogenic refrigeration system for superconducting devices

A pulse tube system for generating refrigeration for uses such as in magnetic resonance imaging systems wherein an oil-free compressor operating at a higher frequency generates pulsing gas which undergoes a frequency reduction and drives the pulse tube system at a more efficient lower frequency.

Low frequency pulse tube system with oil-free drive

A refrigeration generation system wherein a frequency modulating mechanical resonator is positioned between a pressure wave generator and a cryocooler and serves to reduce the frequency of the oscillating gas emanating from the pressure wave generator so that it more closely comports with a more efficient operating frequency of the cryocooler.

Cryocooler system with frequency modulating mechanical resonator

A gas liquefaction method which uses the pressure energy of a natural gas processing system to generate refrigeration for high temperature cooling of a gas, and uses a mixed gas refrigerant fluid to generate refrigeration for low temperature cooling of the gas to produce liquefied product.

Gas liquefaction method using natural gas and mixed gas refrigeration

Growing community of inventors

Grand Island, NY, United States of America

Richard C Fitzgerald