PATENT CLAIM ANALYSIS

Application Number: 15947627
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["277", "463000"]

Abstract:
Piston rings are disclosed that relate to seal performance in piston containing machines such as piston driven engines. The piston rings may include a piston ring contact side for contact with a cylinder wall in which the piston ring contact side has multiple cavities configured on alternating edges of the piston ring contact side. Certain examples of these piston rings have cavities with an average depth that is less than 1/300 th  of the piston ring width and which collectively occupy a cavity area percentage of the piston ring contact side that is between 20% and 30% of the total area of the piston ring contact side.

Claim (Index 1):
A piston ring comprising:\n a. a piston ring contact side configured for sealing contact with a cylinder wall; b. a plurality of cavities situated on the piston ring contact side; c. a first cavity on the piston ring contact side selected from the plurality of cavities wherein the first cavity is on a first edge of the piston ring contact side; d. a second cavity on the piston ring contact side selected from the plurality of cavities wherein the second cavity is on a second edge of the piston ring contact side and e. a ring width being the distance between the first edge and the second edge; f. wherein the first cavity extends from the first edge of the piston ring contact side toward the second edge contact side by a cavity extent which is between 20% and 35% of the ring width; g. wherein an average depth of the first cavity is less than 1/300 th  of the ring width; h. wherein the plurality of cavities occupies between 40% and 60% of a length of the first edge of the piston ring contact side and i. wherein the plurality of cavities occupies a cavity area percentage of the piston ring contact side and the cavity area percentage is between 20% and 30%.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 91.0
- Lexical Diversity: 1.77778
- Patent Class: 277.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15196587', '11255395', '12381877', '15207400', '12776572']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7660258941431062
- 35 USC 102 Novelty (BERT): 0.4406584000573471
- Combined Prediction Score: 0.7334891447345302
- Mean Citation Score: 116.42785
- Max Citation Score: 123.41363
- Similarity Product: 100.4704216194296

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