PATENT CLAIM ANALYSIS

Application Number: 15777786
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["251", "333000"]

Abstract:
A sealing element for a ball valve with a first sealing ring and a second sealing ring whose central axes are parallel, the first sealing ring and the second sealing ring being made of different materials, and the first sealing ring being located on a side of the second sealing ring facing towards a ball in a ball valve in an axial direction, and being used to make contact with a spherical surface of the ball to form a seat The first and second sealing rings are fixed together, and the first sealing ring is a stamped annular polytetrafluoroethylene (PTFE) sheet. Since PTFE has a very low friction coefficient, the friction torque between the first sealing ring and the spherical surface of the ball is relatively small, and the first sealing ring does not wear easily and is not prone to sealing failure. A ball valve using the sealing element is also disclosed.

Claim (Index 15):
A ball valve comprising:\n a valve housing; a ball having a spherical surface rotatably mounted in the valve housing; and a sealing element comprising a first sealing ring and a second sealing ring fixedly connected to one another, the first sealing ring and the second sealing ring being made of different materials, and the first sealing ring being located on a side of the second sealing ring that faces toward the spherical surface of the ball, and the first sealing ring includes a sealing surface that contacts the spherical surface of the ball to form a seal, and the first sealing ring is formed from a stamped annular polytetrafluoroethylene (PTFE) sheet.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 93.0
- Lexical Diversity: 2.24658
- Patent Class: 251.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12809903', '13172078', '12269127', '11047183', '10565437']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7341474358955996
- 35 USC 102 Novelty (BERT): 0.4517819871360197
- Combined Prediction Score: 0.7059108910196417
- Mean Citation Score: 193.434872
- Max Citation Score: 202.01569
- Similarity Product: 165.81216775670228

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