PATENT CLAIM ANALYSIS

Application Number: 15751332
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["431", "354000"]

Abstract:
A premixing apparatus has: a fan; an air tube; and a gas tube inside the air tube; provided that a direction toward an air flow upstream side inside the air tube is defined as an X+ direction, an air adjusting valve facing an air inlet port positioned at an end, in the X+ direction, of the air tube; a gas adjusting valve facing a gas outlet port positioned at one end of the gas tube; and a common actuator driving the air adjusting valve and the gas adjusting valve. At an end, in the X− direction, of the gas tube, is disposed a valve seat having formed therein the gas outlet port, and a gas adjusting valve inside the gas tube. A valve stem penetrates through an end wall, in the X+ direction, of the gas tube. The gas adjusting valve is driven by the actuator through the valve stem.

Claim (Index 1):
A premixing apparatus for mixing air with fuel gas, thereby supplying a burner with air-fuel mixture, the premixing apparatus comprising:\n a fan for supplying air; an air tube which is disposed on an upstream side or on a downstream side of the fan so that air flows therethrough; suppose: that a longitudinal direction of the air tube is defined as an X-axis direction; that, in the X-axis direction, the direction looking toward an upstream side of air flow is defined as an X-axis plus direction; and that the direction looking toward a downstream side of the air flow is defined as an X-axis minus direction; a gas tube which is connected to a downstream end of a gas supply passage for supplying the fuel gas and which is disposed inside the air tube; an air adjusting valve lying opposite to an air inlet port which is positioned at an end part, in the X-axis plus direction, of the air tube, in a manner to be movable back and forth in the X-axis direction to thereby vary an opening degree of the air inlet port; a gas adjusting valve lying opposite to a gas outlet port which is positioned at one end part, in the X-axis direction, of the gas tube, in a manner to be movable back and forth in the X-axis direction to thereby vary an opening degree of the gas outlet port; and a common actuator which drives in the X-axis direction both the air adjusting valve and the gas adjusting valve, characterized in: that the gas tube is of a bottomed shape with an end part thereof in the X-axis plus direction being closed; that, at an end part, in the X-axis minus direction, of the gas tube, there is disposed a valve seat for the gas adjusting valve, the valve seat having formed therein the gas outlet port, the gas adjusting valve being disposed inside the gas tube; and that a valve stem is disposed so as to be extended from the gas adjusting valve to penetrate through an end wall part, in the X-axis plus direction toward the actuator side, such that the gas adjusting valve is driven via the valve stem by the actuator in the X-axis direction.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 2.96491
- Patent Class: 431.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15749253', '15453470', '14711950', '14648253', '15458172']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6757696113807333
- 35 USC 102 Novelty (BERT): 0.4953288940179947
- Combined Prediction Score: 0.6577255396444595
- Mean Citation Score: 203.070898
- Max Citation Score: 256.1892
- Similarity Product: 197.73819604396823

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