PATENT CLAIM ANALYSIS

Application Number: 16030252
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["029", "888400"]

Abstract:
An exhaust valve for an internal combustion engine comprises a valve disc having a first side ( 14 ) and a second side ( 16 ), a valve stem extending from the first side of the valve disc, and an annular valve seat area ( 11 ) located at the first side of the valve disc. The annular valve seat area ( 11 ) is of a nickel-base alloy or a chromium-base alloy and has a valve seat surface. The annular valve seat area has at least a first annular portion ( 43 ) located in between two second annular portions ( 42 ). The first annular portion has lower hardness than the two second annular portions.

Claim (Index 1):
A method of strengthening an annular valve seat area in an exhaust valve for an internal combustion engine, which exhaust valve comprises a valve disc having a first side and a second side, a valve stem extending from the first side of the valve disc, and an annular valve seat area located at the first side of the valve disc, which annular valve seat area is of a nickel-base alloy or a chromium-base alloy, wherein at least the following steps are performed:\n a) a valve disc with a raw seat area is provided, which raw seat area has at least two annular protrusions separated by an intermediate annular area, b) the two annular protrusions are plastically deformed, c) the raw seat area is machined to the dimensions of the annular valve seat area, d) the valve disc with the annular valve seat area is subjected to heat treatment involving at least an aging heat treatment.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 95.0
- Lexical Diversity: 2.36538
- Patent Class: 29.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13915034', '14819655', '14348692', '14778096', '11283679']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.855993331490303
- 35 USC 102 Novelty (BERT): 0.4763383496304321
- Combined Prediction Score: 0.8180278333043159
- Mean Citation Score: 184.427834
- Max Citation Score: 194.75958
- Similarity Product: 160.78636382611512

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