PATENT CLAIM ANALYSIS

Application Number: 15911787
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["220", "721000"]

Abstract:
Disclosed is an expansion tank having an internal cavity separated by a flexible diaphragm to form an upper pressurized gas portion and a lower pressurized fluid portion, and an indicator positioned at an upper part of the expansion tank in communication with the contents of the upper pressurized gas portion. The indicator is configured so as to display a first color if the operating conditions arc normal in the pressurized gas portion, and a second color if the amount of moisture detected in the pressurized gas portion greater than or equal to a predetermined amount. Further disclosed is a method for detecting whether there is an excessive amount of moisture in a pressurized gas portion of an expansion tank by allowing pressurized gas from the pressurized gas portion to come into contact with the indicator, and viewing the color displayed by the indicator. As such, the tank can be simply visually inspected to determine whether there is a potential failure in the tank.

Claim (Index 30):
A tank comprising:\n a housing defining a cavity and being formed of a material that corrodes and rusts when in contact with a pressurized fluid; a liner positioned within the cavity and connected to an inner wall of the housing; a flexible diaphragm positioned within the cavity and connected to the inner wall of the housing, the diaphragm separating the cavity into a first portion sealed to contain a pressurized gas between the inner wall and the flexible diaphragm, and a second portion sealed to contain the pressurized fluid between the liner and the flexible diaphragm; a valve extending through the housing into the first portion of the cavity; and an indicator connected to the housing and surrounding the valve, the indicator being in communication with the pressurized gas in the first portion of the cavity via the valve and the indicator including a cap and an insert disposed within the cap, the cap being connected to an outer surface of the housing and including a transparent portion, and the insert including a display portion that is a first color and that extends into and is spaced from the transparent portion of the cap to form a space for receiving the pressurized gas and/or fluid, wherein when the pressurized gas is free of the pressurized fluid, the first color of the insert is visible though the transparent portion of the cap, and wherein when the pressurized gas includes a level of pressurized fluid that causes the material of the housing to corrode and rust, the pressurized gas and pressurized fluid will enter the space and be a second color visible through the transparent portion of the cap.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 90.0
- Lexical Diversity: 2.1375
- Patent Class: 220.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14291894', '13712437', '12009469', '14808522', '11269425']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8270004547972918
- 35 USC 102 Novelty (BERT): 0.5344137394138329
- Combined Prediction Score: 0.7977417832589458
- Mean Citation Score: 233.42396800000003
- Max Citation Score: 397.61194
- Similarity Product: 329.9664282100785

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