PATENT CLAIM ANALYSIS

Application Number: 15893733
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-03
Patent Classification: ["218", "052000"]

Abstract:
In a gas circuit breaker, arc-extinguishing gas is filled in a container. A movable portion housed in the container includes a movable arc contact. The movable portion includes a pressure accumulator that increases pressure of an arc-extinguishing gas. An opposing portion housed in the container includes an opposing arc contact, an exhaust pipe, and a shielding portion. The shielding portion includes a first shielding wall intersecting with an axial direction of the pipe and a second shielding wall having a cylindrical shape extending from the first shielding wall toward the movable portion along the axial direction of the pipe. The second shielding wall includes through-holes. Lengths of the respective through-holes along the axial direction are from 18 millimeter's to 55 millimeters inclusive. An arc-extinguishing gas whose pressure has been increased in the pressure accumulator flows into a space to extinguish arc discharge, and flows into the second shielding wall.

Claim (Index 10):
A gas circuit breaker comprising:\n a container filled with an arc-extinguishing gas; a movable portion housed in the container, which includes a movable arc contact and is provided with a pressure accumulator that increases pressure of an arc-extinguishing gas; an opposing portion housed in the container and including an exhaust pipe, a shielding portion provided in the exhaust pipe in a state of allowing flow of an arc-extinguishing gas in the exhaust pipe, and an opposing arc contact housed in the shielding portion; and a nozzle housed in the container and provided with a space in which arc discharge is generated between the movable arc contact and the opposing arc contact, wherein the shielding portion includes a first shielding wall intersecting with an axial direction of the exhaust pipe, and a second shielding wall having a cylindrical shape extending from the first shielding wall toward the movable portion along the axial direction of the exhaust pipe, the shielding portion is provided with a plurality of through-holes, an arc-extinguishing gas whose pressure has been increased in the pressure accumulator flows into the space to extinguish the arc discharge, and flows into the second shielding wall, and the arc-extinguishing gas flowing into the second shielding wall passes between the opposing arc contact and the second shielding wall at a supersonic speed, and after having passed between the opposing arc contact and the second shielding wall, becomes a subsonic speed in the second shielding wall, and flows into the through-holes.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 88.0
- Lexical Diversity: 2.41791
- Patent Class: 218.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15193531', '15309601', '14665364', '13820333', '12717444']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6025662966068125
- 35 USC 102 Novelty (BERT): 0.4961186082288786
- Combined Prediction Score: 0.5919215277690191
- Mean Citation Score: 205.407538
- Max Citation Score: 268.45804
- Similarity Product: 246.93958976298808

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

Dataset: test