PATENT CLAIM ANALYSIS

Application Number: 16081471
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["415", "104000"]

Abstract:
A single-stage or multi-stage centrifugal pump has a balancing disc for balancing the axial forces of the pump. The balancing disc includes at least one annular groove in at least one of the non-axial counter surfaces and of the balancing disc and the counter member.

Claim (Index 1):
A centrifugal pump, comprising:\n a pump casing with an inlet and an outlet; a shaft sealed and mounted with slide bearings to the pump casing, the shaft being movable in axial direction; at least one impeller fastened on the shaft for rotation therewith and a balancing device configured to balance axial forces, the balancing device comprising a balancing disc fastened on the shaft for rotation therewith and having an outer circumference; and a stationary counter member arranged in connection with the pump casing, the balancing disc and the counter member forming therebetween a balancing cavity, the balancing disc having a first non-axial surface delimited to the outer circumference and the counter member having a second non-axial surface, the first and the second non-axial surfaces facing one another and forming a thin gap therebetween, at least one of the first and the second non-axial surfaces including at least one annular groove, a throttling being arranged downstream of the balancing disc and the counter member includes a counter ring having the second non-axial surface or the balancing disc includes an annular ring having the first non-axial surface.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 96.0
- Lexical Diversity: 1.62069
- Patent Class: 415.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12264662', '13668554', '14191312', '14034357', '12454204']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7955520553699611
- 35 USC 102 Novelty (BERT): 0.4188561421729582
- Combined Prediction Score: 0.7578824640502608
- Mean Citation Score: 192.513714
- Max Citation Score: 195.11758
- Similarity Product: 168.4206703722024

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