PATENT CLAIM ANALYSIS

Application Number: 16019484
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["210", "798000"]

Abstract:
Apparatus and method for semi-permeable membrane cleaning in particular, applying series of pulsed water stroke, made simultaneously with osmosis backward flow causing superposed membrane directional shaking and fouling detachment. Pulsed water stroke provided by water stroke generator as several momentum sharp changes in gauge pressure and induce velocity pulse of residual brine flow. The pulsed water strokes ideally induce resonance in the membrane. Osmosis backward wash may be provided either by injection for predetermined injection time, additional solution selected in such way that net driving pressure be-comes opposite to normal osmotic operation thereby providing a backward flow of permeate towards to the side opposite to normal operation mode, so as to lift said foulant, or by throttling permeate exiting from the permeate enclosure, until the net driving pressure value become equal to zero, during application of precise synchronized and opposing brine and permeate pressure strokes thereby providing a plurality of quick RO-FO-RO process changes. These procedures allow a membrane to be kept continuously clean and operate at higher recovery.

Claim (Index 5):
A method according to  claim 1  wherein the permeate stream has a gauge pressure PGp and the permeate backward flow is induced by providing a PGp within 4 bars of a minimum net positive suction head (NPSH) value of osmotic pump, being defined as the minimum PGp below which backward flow is diminished.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 94.0
- Lexical Diversity: 1.61607
- Patent Class: 210.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15328411', '11629630', '11748234', '13512024', '14888920']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8337269604623211
- 35 USC 102 Novelty (BERT): 0.625326212237668
- Combined Prediction Score: 0.8128868856398558
- Mean Citation Score: 386.353302
- Max Citation Score: 563.7238
- Similarity Product: 561.6655642895698

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

Dataset: test