Inventor

LONGSWORTH RALPH C

US59 patents

⚠️ This page may combine multiple inventors who share the name “LONGSWORTH RALPH C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LONGSWORTH RALPH C

AIR PROD & CHEM

Removable refrigerator for maintaining liquefied gas inventory

Cryostat with serviceable refrigerator

Dewar and removable refrigerator for maintaining liquefied gas inventory

Dual thermal coupling

Apparatus for condensing liquid cryogen boil-off

Cryopumping method and apparatus

Method and apparatus for improving the sensitivity of a leak detector utilizing a cryopump

Cryopumping apparatus

Bimaterial demand flow cryostat

Parallel wrapped tube heat exchanger

Parallel wrapped tube heat exchanger

Apparatus and method for increasing the speed of a displacer-expander refrigerator

Cryogenic air sampler

Method for coating cryopumping apparatus

Bakeable cryopump

Variable flow cryostat with dual orifice

APD CRYOGENICS INC

Cryo-probe

Means and apparatus for convectively cooling a superconducting magnet

Cryogenic refrigerator with single stage compressor

Throttle cycle cryopumping system for Group I gases

Cryostat refrigeration system using mixed refrigerants in a closed vapor compression cycle having a fixed flow restrictor

Sealed dewar with separate circulation loop for external cooling at constant pressure

Venting control system for cryostats

Method and apparatus for collecting liquid cryogen

Parallel wrapped tube heat exchanger

Vibrationally isolated thermal system for a cryogenically cooled device

High efficiency throttle cryogenic refrigerator based on one stage compressor

Crysostat for very stable temperature maintenance

Continuous flow cryogen sublimation cooler

SUMITOMO SHI CRYOGENICS OF AMERICA INC

Cryogenic expander with collar bumper for reduced noise and vibration characteristics

System for warming-up and cooling-down a superconducting magnet

Heat station for cooling a circulating cryogen

Split pulse tube connecting line

Co-axtal, double-inlet valve for pulse tube cryocooler

SUMITOMO HEAVY INDUSTRIES

Wearless valve for cryorefrigerator

Hybrid spool valve for multi-port pulse tube

Panels for pulse tube cryopump

Fast warm up pulse tube

APD CRYOGENICS

Heat exchanger for a fast cooldown cryostat

Parallel wrapped tube heat exchanger

Closed cycle cryogenic refrigeration system with automatic variable flow area throttling device

SHI APD CRYOGENICS INC

Two-stage inter-phasing pulse tube refrigerators with and without shared buffer volumes

Fail-safe oil lubricated helium compressor unit with oil-free gas delivery

Fail-safe oil lubricated helium compressor unit with oil-free gas delivery

INTERMAGNETICS GENERAL CORP

Reduced vibration cooling device having pneumatically-driven GM type displacer

MRI cryostat cooled by open and closed cycle refrigeration systems

IGC APD CRYOGENICS

Pulse tube integral flow smoother

SUMITOMO (SHI) CRYOGENICS OF AMERICA INC

Heat station for cooling a circulating cryogen

LONGSWORTH RALPH C

Parallel wrapped tube heat exchanger

SHI APD CRYOGENCIS INC

Refrigerator with magnetic shield