PATENT CLAIM ANALYSIS

Application Number: 15976174
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["494", "056000"]

Abstract:
A centrifugal separator includes a cylindrical bowl, a core tube assembly, and an annular piston disposed around the core tube assembly and inside the inner surface of the bowl. Feed liquid is injected down the core tube assembly into the lower portion of the bowl, raising the annular piston. During a separation mode, the bowl rotates at high speed, separating solids from the feed liquid to accumulate along the inner surface of the bowl, while collecting clarified centrate as it exits the top of the bowl and through the core tube assembly. Following solids accumulation, bowl rotation is stopped and residual liquid is pumped from the bowl. In a solids discharge mode, the annular piston is urged downward along a vertical axis in response to compressed gas. The downward movement of the piston forces accumulated solids from the bowl via an opening in the lower end thereof.

Claim (Index 1):
A centrifugal separator comprising:\n a separator housing, the separator housing having a main body portion; a cylindrical separator bowl disposed in the main body portion of the separator housing, the cylindrical separator bowl having an upper end, and a lower end with an opening, the cylindrical separator bowl being operative during a separation mode of operation to rotate at a high speed to separate feed liquid into centrate and solids, wherein solids accumulate along an inner surface of the cylindrical separator bowl; a core tube assembly disposed axially along the interior length of the cylindrical separator bowl, the core tube assembly comprising\n a pull rod operative for axial movement along the core tube assembly, and \n a shuttle valve operatively coupled to the pull rod, wherein the shuttle valve is operative for axial movement to open and close the opening in the lower end of the cylindrical separator bowl; \n an actuator at the upper end of the core tube assembly, the actuator operatively coupled to the pull rod to move the shuttle valve; an annular piston disposed between an inner surface of the cylindrical separator bowl and an outer surface of the core tube assembly, the annular piston being operative for axial movement to discharge solids out of the opening in the lower end of the cylindrical separator bowl; and a gas port in gas communication with an upper surface of the annular piston via at least one gas passage in the upper end of the cylindrical separator bowl, wherein gas introduced through the gas port presses against the upper surface of the annular piston to drive the annular piston downward and discharge solids through the opening in the lower end of the cylindrical separator bowl.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 93.0
- Lexical Diversity: 2.03797
- Patent Class: 494.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12648625', '12577775', '11634363', '10973949', '10823844']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7247530095842797
- 35 USC 102 Novelty (BERT): 0.5378565868790198
- Combined Prediction Score: 0.7060633673137537
- Mean Citation Score: 371.973376
- Max Citation Score: 397.0403
- Similarity Product: 334.6069012090385

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test