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 9):
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 opposing arc contact, an exhaust pipe, and a shielding portion provided in the exhaust pipe in a state of allowing flow of an arc-extinguishing gas in the exhaust pipe; 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 opposing arc contact is housed in the second shielding wall and supported by the second shielding wall via a support member, the opposing arc contact and the support member constitute a structural object, a length between an end of the first shielding wall on a side of the structural object and an end of the structural object on a side of the first shielding wall along the axial direction is longer than a length between an end of the nozzle on the side of the first shielding wall and the end of the structural object on the side of the first shielding wall along the axial direction, in a state with the movable arc contact and the opposing arc contact being furthermost separated from each other in the axial direction, and 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.

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): 0.6026451727559585
- 35 USC 102 Novelty (BERT): 0.4957116420755002
- Combined Prediction Score: 0.5919518196879128
- Mean Citation Score: 205.407538
- Max Citation Score: 268.45804
- Similarity Product: 248.29916013668063

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