PATENT CLAIM ANALYSIS

Application Number: 15958193
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["277", "350000"]

Abstract:
A labyrinth seal including a stator and a non-contacting rotor, and annular elastomeric seals. The confronting surfaces of the stator and rotor define at least one interface passage, including a radially-outermost annular interface passage between an annular, outermost, radially-extending projection of the stator and an annular rearwardly-extending distal projection of the rotor that overlaps the radially-extending projection of the stator, the radially-outermost annular interface passage tapering outwardly and rearwardly at an acute angle relative to an axial reference line. The annular elastomeric seals are stationary with the stator during dynamic operation of the rotor, and are not contacted by a surface of the rotor during dynamic operation. The interface can also have two radially-disposed exclusion chambers, the outer exclusion chamber being defined in part by a radially-inboard projection of the rotor. The stator can have a projection providing a contact avoidance interface position inboard of at least two contaminant-excluding interfaces.

Claim (Index 19):
A labyrinth seal including a stator and a non-contacting rotor, and including at least one annular elastomeric seal, and at least one interface passage disposed between the confronting surfaces of the stator and rotor, wherein:\n a) the rotor including an annular forward wall, a first distal annular projection extending rearwardly from the forward wall, and a second intermediate annular projection extending rearwardly from the forward wall, the first distal annular projection having an inner annular surface, the second intermediate annular projection having a distal end and an inner annular surface, and the forward wall having a machined inner surface radially inward from the second intermediate annular projection; and b) the stator including a forward portion including an outermost, radially-extending projection having a distal edge and a forward-facing radial surface, and a projection extending forwardly axially from the radial surface and having a distal end and an outer surface, wherein the inner annular surface of the first distal annular projection of the rotor overlaps the distal edge of the radially-extending projection of the stator to form a first radially-outermost interface passage; the distal end of the second intermediate annular projection of the rotor confronts the forward-facing radial surface of the stator to form a second, radial interface passage; the distal end of the projection of the rotor confronts the machined inner surface of the forward wall of the rotor to form a third, radial interface passage; and the inner annular surface of the intermediate annular projection of the rotor confronts the outer surface of the projection of the stator to form a fourth, axial interface passage.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 91.0
- Lexical Diversity: 2.13158
- Patent Class: 277.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14455162', '14592453', '11378208', '11737481', '12887622']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8489471431363019
- 35 USC 102 Novelty (BERT): 0.594198248282532
- Combined Prediction Score: 0.8234722536509249
- Mean Citation Score: 295.28274
- Max Citation Score: 477.37982
- Similarity Product: 423.75104060388327

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test