PATENT CLAIM ANALYSIS

Application Number: 15892867
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["475", "230000"]

Abstract:
A method for manufacturing a case-hardened ring gear/differential case assembly includes attaching a ring gear to a differential case. The case-hardened ring gear and the differential case are fabricated of materials each having differing properties of at least carbon content and melting temperature. The attaching includes placing a flange of the case-hardened ring gear in intimate contact with a flange of the differential case whereby a predetermined gap is defined between a remainder of the ring gear and a remainder of the differential case. The ring gear flange is attached to the differential case flange by a friction welding process. The predetermined gap defines an outflow channel that receives a carburized portion of the case-hardened ring gear as overflow material created by an upset forging step of the friction welding process. Differential assemblies and vehicles including such are described.

Claim (Index 18):
A method for manufacturing a ring gear/differential case assembly comprising at least a case-hardened ring gear, a hypoid pinion gear, and a differential case, the method comprising:\n positioning a ring gear flange adjacent to a differential case flange to align and operatively interface the ring gear with the hypoid pinion gear in the assembled differential assembly, the ring gear flange and differential case flange being configured and dimensioned to, when aligned and abutted, define a predetermined gap providing an outflow channel; and friction welding the ring gear flange directly to the differential case flange; wherein the outflow channel is dimensioned to receive and remove overflow created by an upset forging step of the friction welding, the overflow comprising a carburized portion of the case-hardened ring gear.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 88.0
- Lexical Diversity: 2.01389
- Patent Class: 475.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13402977', '12237959', '12379592', '13145890', '14112363']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.729299830611831
- 35 USC 102 Novelty (BERT): 0.4818652362113288
- Combined Prediction Score: 0.7045563711717808
- Mean Citation Score: 231.20171
- Max Citation Score: 249.0712
- Similarity Product: 196.4051886329651

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

Dataset: test