PATENT CLAIM ANALYSIS

Application Number: 16079556
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["277", "443000"]

Abstract:
A piston ring includes an annular body having: an inner circumferential surface and an outer circumferential surface; one side surface and the other side surface substantially orthogonal to the inner circumferential surface; and a pair of joint ends. The outer circumferential surface includes an inclined surface and an abutment surface. In a direction connecting the one side surface and the other side surface, a maximum width W 1  of the abutment surface at the joint end is 80% to 150% of a maximum width W 2  of the abutment surface in a portion other than the joint end. In the body, a two-axis difference (d 2 −d 1 ) between a diameter d 1  in a first axis direction passing through a central position of the joint and a diameter d 2  in a second axis direction orthogonal to the first axis direction is greater than −0.25 mm and less than +0.36 mm.

Claim (Index 1):
A piston ring having an annular body comprising:\n an inner circumferential surface and an outer circumferential surface; one side surface and another side surface substantially orthogonal to the inner circumferential surface; and a pair of joint ends opposite to each other to form a joint section, wherein the outer circumferential surface comprises:\n an inclined surface inclined so as to protrude in a radial direction of the body from a side of the body including the one side surface to another side of the body including the other side surface; and \n an abutment surface provided toward the other side of the body from the inclined surface, the abutment surface extending substantially parallel to the inner circumferential surface, \n wherein, in a direction connecting the one side surface and the other side surface, a maximum width W 1  of the abutment surface at the joint end is 80% to 150% of a maximum width W 2  of the abutment surface in a portion other than the joint end, and wherein, in the body, a two-axis difference (d 2 \u2212d 1 ) between a diameter d 1  in a first axis direction passing through a central position of the joint section and a diameter d 2  in a second axis direction orthogonal to the first axis direction is greater than \u22120.25 mm and less than +0.36 mm.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 96.0
- Lexical Diversity: 2.3913
- Patent Class: 277.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15557797', '16061123', '15538139', '15034657', '12385224']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7427874757948861
- 35 USC 102 Novelty (BERT): 0.4810488619779042
- Combined Prediction Score: 0.7166136144131879
- Mean Citation Score: 163.003224
- Max Citation Score: 172.10602
- Similarity Product: 121.52130926051616

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