PATENT CLAIM ANALYSIS

Application Number: 15887312
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["062", "006000"]

Abstract:
A cryogenic refrigerator includes a displacer including a body part and a heat conducting part, wherein the material of the heat conducting part has a higher thermal conductivity than the body part; a cylinder accommodating the displacer in such a manner as to allow the displacer to reciprocate in the axial directions of the cylinder, wherein an expansion space is formed between the cylinder and a low temperature end of the displacer; a clearance channel formed between the displacer and the cylinder so as to allow a refrigerant gas to flow into the expansion space; and a cooling stage positioned adjacent to the expansion space. The heat conducting part faces the cooling stage across the clearance channel.

Claim (Index 1):
A cryogenic refrigerator, comprising:\n a displacer having a cylindrical shape extending between a low temperature end and a high temperature end thereof, and including:\n a body part made of phenol containing cloth, \n a heat conducting part provided at a lower temperature side relative to the body part, said heat conducting part including a diameter smaller than an overlapped part of the body part so as to be inserted into an inner circumference of the overlapped part of the body part that overlaps the overlapping part in a stroke direction of the displacer, said heat conducting part being made of copper or aluminum, \n a regenerator material within an inner space thereof, and \n an opening provided at an outer peripheral surface of the displacer at the low temperature end so as to be connected to the inner space; \n a cylinder accommodating the displacer in such a manner as to allow the displacer to reciprocate in axial directions of the cylinder, wherein an expansion space is formed between the cylinder and a low temperature end of the displacer; a clearance channel formed between the outer peripheral surface of the displacer and an inner peripheral surface of the cylinder so as to allow a refrigerant gas to flow into the expansion space from the opening of the displacer; and a cooling stage positioned adjacent to the expansion space and having a hollow portion provided around an outer peripheral surface of the cylinder so as to enclose the expansion space and a bottom portion provided so as to face a bottom portion of the cylinder so as to enclose the expansion space, wherein the heat conducting part faces the hollow portion of the cooling stage across the clearance channel, wherein the cylinder and the high temperature end of the displacer define a room temperature chamber that changes its volume according to a reciprocating movement of the displacer in the axial directions of the cylinder, and wherein the cylinder and the displacer defines the expansion space that changes its volume according to the reciprocal movement of the displacer.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 88.0
- Lexical Diversity: 2.13793
- Patent Class: 62.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13604890', '14677235', '13915982', '13616385', '13755260']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8421640983912867
- 35 USC 102 Novelty (BERT): 0.5121285768784372
- Combined Prediction Score: 0.8091605462400017
- Mean Citation Score: 290.808052
- Max Citation Score: 300.10025
- Similarity Product: 210.7425039535463

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

Dataset: test