PATENT CLAIM ANALYSIS

Application Number: 15550241
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["266", "205000"]

Abstract:
Device and method for melt treatment of aluminium alloys having excessive inclusions, impurities and unwanted gases to be removed, by (a) cooling the melt at an appropriate cooling rate to a temperature below the liquidus by shearing the melt associated with the introduction of at least one type of inert gases into the melt to form fine bubbles and high shear in the melt, and (b) purifying inclusions in the melt by floating them to the top surface, degassing the undesirable gases by reacting with the inert gas, and forming solid intermetallics containing impurity elements and transferring the melt mixture by the shearing device into a holding furnace, and (c) maintaining the melt in the holding furnace at a temperature below the liquidus and above the solidus temperature to settle the solid intermetallics formed by impurity elements as sediment at the bottom of the holding furnace while flowing the melt with much reduced inclusions, impurities and unwanted gases out of the holding furnace as applicable materials. The method is advantageously applicable for upgrading aluminium alloys from recycled and/or scrapped materials.

Claim (Index 16):
A method for separating impurities from an alloy melt, including the steps of:\n (a) providing a melt of the alloy in a first vessel, and including the following steps in any order: (b) deploying a device as recited in claim  1  and rotating the rotor in order to shear the melt, (c) deploying a device as recited in claim  1  and supplying to the alloy melt an inert gas by causing said gas to flow along the longitudinal channel of said device from the first end to the second end of the shaft in order that the gas exits the shaft, forms gas bubbles in the alloy melt, and passes through the aperture in the sleeve wall, and (d) reducing the temperature of the alloy melt to below its liquidus but above its solidus,\n in order to cause impurities to collect at the top surface of the melt, at the bottom of the vessel or to dissolve in the gas bubbles.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 86.0
- Lexical Diversity: 2.09677
- Patent Class: 266.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11712841', '13384142', '14900596', '13823216', '12095319']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.752498776230433
- 35 USC 102 Novelty (BERT): 0.4562086810704959
- Combined Prediction Score: 0.7228697667144394
- Mean Citation Score: 165.116152
- Max Citation Score: 172.62717
- Similarity Product: 139.24308766154408

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

Dataset: test