PATENT CLAIM ANALYSIS

Application Number: 16007513
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-12
Patent Classification: ["356", "439000"]

Abstract:
An apparatus for measuring the optical absorption of airborne matter or other light absorbing species in a sample airflow. The apparatus comprises a flow path through a fibrous filter to collect light absorbing species in the sampled air. The filtered airflow may subsequently pass through a second filter, used for reference measurements. At least one light source impinges in the filter generating one or two optical signals to determine the light absorption of particulate matter or other species in the sampled airflow. The apparatus includes at least one auxiliary sensor in the sample flow path to monitor an environmental factor, such as temperature. During a training period, a mathematical model of the apparatus' environmental sensitivity is derived. Using the mathematical model and measurements from the auxiliary sensor, optical signals are compensated in real time to increase the precision and accuracy of light absorption measurements recorded under fluctuating environmental conditions.

Claim (Index 9):
An apparatus for determining the optical absorption of matter in an air sample, comprising:\n a case forming a chamber therewithin, said chamber possessing an inlet and an outlet; a first filter positioned in said chamber; a second filter positioned in said chamber; a partition positioned adjacent said first and second filters; said first filter and said partition forming a first subchamber in said case; said second filter and said partition forming a second subchamber in said case; said first and second filters and said partition forming a third subchamber in said casement; said first, second, and third subchambers being arranged to allow the air sample to flow through said chamber, in a first order beginning with first subchamber, through said first subchamber, through said first filter, through said third subchamber, through said second filter, through said second subchamber, or in a second order beginning with said second subchamber; a first light source directing light to pass through said first filter; a first light detector receiving light from said first light source passed through said first filter and generating a first signal therefrom; a second light detector receiving light from said second light source passed through said second filter and generating a second signal therefrom; and comparator means for determining the ratio value between said first and second signals.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 94.0
- Lexical Diversity: 1.91667
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15880244', '11193204', '15504727', '12975396', '13601288']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6943508333638402
- 35 USC 102 Novelty (BERT): 0.4635189713258124
- Combined Prediction Score: 0.6712676471600374
- Mean Citation Score: 150.49728000000005
- Max Citation Score: 154.88065
- Similarity Product: 117.16226447035076

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

Dataset: test