PATENT CLAIM ANALYSIS

Application Number: 15746772
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["137", "527000"]

Abstract:
A flapper valve having a valve body which includes first and second ends, a flow bore which extends between the first and second ends, and an enlarged diameter cavity which is formed coaxially within the flow bore; a valve seat which comprises a through bore that is aligned with the flow bore; a retainer which is positioned radially outwardly of the cavity; and a flapper which is pivotally connected to the retainer. The flapper includes a sealing side which is configured to engage the valve seat when the flapper is in a closed position, a core which is made of a rigid material, a circular stop ring which is connected to or formed integrally with the core on the sealing side of the flapper and is configured to engage the valve seat when the flapper is in the closed position, and a resilient coating.

Claim (Index 1):
A flapper valve which comprises:\n a valve body which includes first and second ends, a flow bore which extends between the first and second ends, and an enlarged diameter cavity which is formed coaxially within the flow bore; a valve seat which comprises a through bore that is aligned with the flow bore; a retainer which is positioned radially outwardly of the cavity; and a flapper which is pivotally connected to the retainer, the flapper comprising:\n a sealing side which is configured to engage the valve seat when the flapper is in a closed position; \n a core which is made of a rigid material; \n a circular stop ring which is connected to or formed integrally with the core on the sealing side of the flapper, the stop ring being configured to engage the valve seat when the flapper is in the closed position; and \n a resilient coating which includes at least one of a radially inner portion that is disposed on the core radially inwardly of the stop ring and a radially outer portion that is disposed on the core radially outwardly of the stop ring, the inner and outer portions being configured to sealingly engage the valve seat when the flapper is in the closed position; \n wherein the stop ring and the radially inner and outer portions are configured such that, as the flapper moves into the closed position, the radially inner and outer portions will engage the valve seat before the stop ring engages the valve seat; \n whereby the stop ring limits the extent to which the radially inner and outer portions are compressed against the valve seat when the flapper is in the closed position.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 86.0
- Lexical Diversity: 2.44444
- Patent Class: 137.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14580068', '14210103', '14171325', '15678350', '12226577']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8459711894774637
- 35 USC 102 Novelty (BERT): 0.4664057544482218
- Combined Prediction Score: 0.8080146459745395
- Mean Citation Score: 226.00804
- Max Citation Score: 228.29857
- Similarity Product: 186.4536151635552

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