PATENT CLAIM ANALYSIS

Application Number: 16019205
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-11
Patent Classification: ["417", "423120"]

Abstract:
Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

Claim (Index 1):
A method of pumping a liquid comprising:\n obtaining a centrifugal pump having a housing, a rotor having a bore, the rotor having at least one blade; said rotor having a rotor magnet assembly comprising at least one rotor magnet with its magnetic vector being substantially parallel to an axis of said rotor; a spindle extending into said bore; said spindle having a spindle magnet assembly comprising at least one spindle magnet with its magnetic vector being substantially parallel to an axis of said spindle; said rotor magnet assembly and said spindle magnet assembly constituting a passive axial magnetic bearing; supporting said rotor with said passive axial magnetic bearing; pre-biasing said rotor axially in a first direction; adjusting, as needed, said passive axial magnetic bearing so as to modify the pre-bias of said rotor in said first direction; generating a force in a direction parallel to said first direction when said rotor is in a rotating state via at least one hydrodynamic bearing disposed between said rotor and said housing; levitating said rotor during rotation of said rotor using said passive axial magnetic bearing and said at least one hydrodynamic bearing.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 94.0
- Lexical Diversity: 1.54412
- Patent Class: 417.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15811440', '14047717', '11950328', '11950318', '15385364']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8255566287098087
- 35 USC 102 Novelty (BERT): 0.5406168510554936
- Combined Prediction Score: 0.7970626509443772
- Mean Citation Score: 372.321418
- Max Citation Score: 380.61432
- Similarity Product: 370.1080753103829

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