PATENT CLAIM ANALYSIS

Application Number: 15767989
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["277", "400000"]

Abstract:
A mechanical seal includes: a rotation-side member and a seal case positioned and fixed to each other, and in which the engaged state can be released by bringing the rotation-side member and the seal case closer to each other in the axial direction.

Claim (Index 1):
A mechanical seal comprising:\n a rotation-side member including a cylindrical portion fixed to a rotating shaft of fluid equipment and a sealing face, the rotation-side member being rotatable with the rotating shaft; and a stationary-side member including a seal case fixed to a housing of the fluid equipment and having elasticity, a stationary ring having a sealing face and being slidably contactable with the sealing face of the rotation-side member, and a biasing spring held in the seal case to bias the stationary ring so that the stationary ring is movable in an axial direction of the rotating shaft, wherein: the seal case includes an inner circumferential portion extending along the rotating shaft; the inner circumferential portion includes an engaging portion; the cylindrical portion includes an engaged portion; the cylindrical portion includes a recessed surface provided on the opposite side of the engaged portion from the stationary-side member in the axial direction and recessed radially inward from an outer circumferential surface of the engaged portion; an outer diameter of the engaged portion of the cylindrical portion is greater than an inner diameter of the engaging portion of the inner circumferential portion; the engaged portion is continuously formed on the cylindrical potion over an entire circumference thereof; and the engaging portion and the engaged portion come into contact with each other to bring the rotation-side member and the stationary-side member into engagement with each other.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 1.53333
- Patent Class: 277.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13532498', '12935956', '14912041', '11631045', '11996427']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7898002207711027
- 35 USC 102 Novelty (BERT): 0.4684248859440597
- Combined Prediction Score: 0.7576626872883984
- Mean Citation Score: 199.04711
- Max Citation Score: 211.44937
- Similarity Product: 176.48470005218445

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

Dataset: test