PATENT CLAIM ANALYSIS

Application Number: 15947549
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-01
Patent Classification: ["432", "029000"]

Abstract:
A radiative recuperator preheats oxidant and/or fuel for combustion at one or more burners of a furnace. The recuperator includes a duct, at least portions of which comprise a material having a thermal conductivity of greater than 1 W/(m·K), preferably greater than 3 W/(m·K), that receives hot flue gas produced by the burner(s). The duct radiatively transfers heat to oxidant or fuel (for preheating) flowing through one or more metallic pipes disposed in between the duct and an insulating wall.

Claim (Index 1):
A furnace utilizing recuperative heat exchange for preheating a combustion reactant with waste heat energy from flue gas, comprising:\n a combustion chamber including a combustion space enclosed by a furnace wall in which a fuel and an oxidant are combusted to heat solid and/or molten glass or glass-making materials or solid and/or molten metal and thereby producing flue gas; one or more burners mounted in the furnace wall adapted and configured to inject preheated fuel and/or preheated oxidant into the combustion chamber interior for combustion therein; a duct extending along an axis and having a first end receiving at least a portion of the flue gas produced in the combustion chamber and a second opposed end discharging the received flue gas; one or more insulating walls extending parallel to the duct axis and adjacently to an outer surface of the duct, the insulating wall being comprised of an insulating material, an non-reactive gas space being defined between an outer surface of the duct and an inner surface of the insulating wall; and one or more metallic pipes extending through the non-reactive gas space, the pipes receiving the combustion oxidant or the combustion fuel and discharging the combustion oxidant or the combustion fuel after being preheated, wherein one or more portions of the duct is comprised of a material having a thermal conductivity of greater than 1 W/(m\u00b7K).

Metadata:
- Claim Count in Document: 35.0
- Percentile: 91.0
- Lexical Diversity: 1.49231
- Patent Class: 432.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15417972', '12934540', '13730714', '13955890', '10661389']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7450927407089387
- 35 USC 102 Novelty (BERT): 0.4996676646371964
- Combined Prediction Score: 0.7205502331017646
- Mean Citation Score: 258.608306
- Max Citation Score: 275.63
- Similarity Product: 229.7891991436481

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