PATENT CLAIM ANALYSIS

Application Number: 16047920
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["134", "184000"]

Abstract:
An ultrafine bubble cleaning apparatus uses a liquid containing ultrafine bubbles having a size of less than 30 nm to rinse fine particles adhered to soil, sand, etc. to separate and collect the fine particles. The ultrafine bubble cleaning apparatus includes a water tank-shaped reservoir, a stirring device, a supernatant discharge device including a pump for discharging a supernatant of the liquid in the reservoir, and a sedimentation extraction device. Substances are loaded into the ultrafine bubble-containing liquid stored in the reservoir, and the ultrafine bubble-containing liquid is repeatedly brought into contact with the surface of the substance using the stirring device. When ultrafine bubbles get into a space between fine metal particles adhered to the surfaces, cracks, and pits of the substances to be cleaned (including metal ions) and fine particles of organic substances including a solvent, a chemical, and oil, the fine particles are separated and floated.

Claim (Index 11):
A dissolved air floatation apparatus comprising an ultrafine bubble-containing liquid production device swirling a liquid containing ultrafine bubbles having a size of 3 \u212b or more and less than 10 \u212b and bubbles larger than the ultrafine bubbles to concentrate a part thereof that contains the ultrafine bubbles and has a relatively large specific gravity outside a swirling flow, and concentrate a part thereof that contains bubbles larger than the ultrafine bubbles and has a relatively small specific gravity to a central part of the swirling flow followed by discharge, so as to produce an ultrafine bubble-containing liquid concentrated to outside the swirling flow, and a dissolved air floatation tank provided with an inlet at one end, wherein a pressurized ultrafine bubble-containing liquid is mixed in a raw liquid and is poured into the dissolved air floatation tank from the inlet to cause a suspended substance and a dissolved component in the raw liquid to be adsorbed on an interface of fine bubbles and be floated in the dissolved air floatation tank, and the suspended substance and the dissolved component are extracted as a suspended and separated substance from the raw liquid, and a remaining raw liquid is discharged as a treated liquid, the dissolved air floatation apparatus comprising:\n a circulating device configured to circulate a mixed liquid of the raw liquid and the ultrafine bubble-containing liquid in the dissolved air floatation tank; and \n a floated and separated substance collecting device configured to extract a floated and separated substance that is floated to a liquid surface by ultrafine bubbles contained in the ultrafine bubble-containing liquid in the dissolved air floatation tank, \n the circulating device includes: \n a swirling discharge pipe that is provided at a lower portion of the dissolved air floatation tank so as to be projected therefrom and jets the mixed liquid of the raw liquid and the ultrafine bubble-containing liquid as a swirling discharge flow to the dissolved air floatation tank, \n a swirling flow guide that has a cylindrical shape having an opening at upper and lower ends thereof and causes the swirling discharge flow to flow diagonally upward, and \n a gap provided between the lower end opening of the swirling flow guide and a bottom of the dissolved air floatation tank.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 95.0
- Lexical Diversity: 2.06173
- Patent Class: 134.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14781620', '15126865', '10545626', '15804686', '10317010']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8395333434439816
- 35 USC 102 Novelty (BERT): 0.4917901942910026
- Combined Prediction Score: 0.8047590285286838
- Mean Citation Score: 237.800064
- Max Citation Score: 262.38095
- Similarity Product: 215.83042695399223

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

Dataset: test