PATENT CLAIM ANALYSIS

Application Number: 16228731
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["062", "006000"]

Abstract:
In a cryocooler for developing coldness of 4 K or lower by expanding helium, an expander expands high-pressure helium. A compressor compresses low-pressure helium returned from the expander, to generate high-pressure helium, and supplies the high-pressure helium to the expander. When helium temperature in the expander is 2.17 K or lower, the pressure of the low-pressure helium is equal to or higher than pressure given by a curve, in a helium state diagram in which the horizontal axis is temperature and the vertical axis is pressure, along which helium's volumetric thermal expansion coefficient is 0.

Claim (Index 1):
A cryocooler system for cooling helium to around or below 4 K by expanding helium, the cryocooler system comprising:\n an expander for expanding high-pressure helium; a compressor for compressing low-pressure helium, returned from the expander, to generate high-pressure helium, and supplying the high-pressure helium to the expander; a helium gas line assembly connecting the expander to the compressor, the helium gas line assembly having a low-pressure line on a low-pressure side of the compressor, and a high-pressure line on a high-pressure side of the compressor; and a helium tank section for supplying helium to the cryocooler, the helium tank section including a helium tank and a connection line connecting the helium tank to the low-pressure line, wherein the helium tank section is configured to control a cryocooler operation pressure on the low-pressure side of the compressor so as to be equal to or higher than pressure at an intersection point between a curve, in a helium state diagram whose horizontal axis is temperature and vertical axis is pressure, along which helium's volumetric thermal expansion coefficient is 0, and an isentropic curve for entropy of the helium at a target temperature, the target temperature being 2.17K or lower.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 98.0
- Lexical Diversity: 1.90909
- Patent Class: 62.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14977208', '15436503', '16135831', '15452524', '13801960']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8122701640301527
- 35 USC 102 Novelty (BERT): 0.5439212553801219
- Combined Prediction Score: 0.7854352731651497
- Mean Citation Score: 236.605948
- Max Citation Score: 393.8075
- Similarity Product: 388.8578938022255

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test