PATENT CLAIM ANALYSIS

Application Number: 15769649
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["138", "031000"]

Abstract:
An accumulator capable of suppressing collision of a metal bellows with a pressure vessel. A partition unit  300  includes: a tubular metal bellows  310 , one end of which is side fixed to a pressure vessel  200  and which expands and contracts according to pressure in a fluid chamber and pressure in a gas chamber; and a bellows cap  320  which is fixed to another end side of the metal bellows  310 , the partition unit  300  further including: a seal member  330  which is provided between the bellows cap  320  and a port  221  and seals a working fluid on the side of the fluid chamber via the metal bellows  310  when the metal bellows  310  contracts; and a sliding unit  350  which is fixed to the bellows cap  320  and slides in an expansion/contraction direction of the metal bellows  310  relative to a stay  400.

Claim (Index 1):
An accumulator comprising:\n a pressure vessel having a port serving as an entrance and an exit of a working fluid; a partition unit provided in the pressure vessel and partitioning the pressure vessel into a fluid chamber, in which the working fluid flows, and a gas chamber, in which gas is sealed; and an annular member disposed in the partition unit and fixed to the pressure vessel, wherein the partition unit includes: a tubular metal bellows, one end side of which is fixed to the pressure vessel and which expands and contracts according to pressure in the fluid chamber and pressure in the gas chamber; and a bellows cap which is fixed to another end side of the metal bellows, the partition unit further includes: a seal member which is provided between the bellows cap and the port and seals the working fluid on a side of the fluid chamber via the metal bellows when the metal bellows expands and contracts; and a sliding unit which is fixed to the bellows cap and slides in an expansion/contraction direction of the metal bellows relative to the annular member.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 91.0
- Lexical Diversity: 2.31818
- Patent Class: 138.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15563432', '14366957', '12612217', '14421167', '15570937']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7399565192986034
- 35 USC 102 Novelty (BERT): 0.4647605152732478
- Combined Prediction Score: 0.7124369188960679
- Mean Citation Score: 226.81691400000005
- Max Citation Score: 261.79865
- Similarity Product: 230.7865906080544

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