PATENT CLAIM ANALYSIS

Application Number: 15777453
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["222", "213000"]

Abstract:
There are provided a check valve structure that not only prevents backflow of fluid but does not discharge fluid for unintended pressure in a correct direction, and a squeeze container using the check valve structure. A squeeze container includes a container and a nozzle member attached to an opening of the container. The nozzle member is provided with a check valve structure that is closed in an unloaded state, and that blocks a flow of fluid from downstream and allows a flow of fluid from upstream. The check valve structure is opened when an elastic valve element elastically deforms in two stages due to pressure of fluid from upstream (container).

Claim (Index 1):
A check valve structure comprising:\n an annular valve seat disposed upstream; an annular support portion disposed downstream; and an elastic valve element fixed between the valve seat and the support portion, wherein the elastic valve element has an annular outer edge portion and an inner portion surrounded by the outer edge portion, a passage between the valve seat and the support portion is closed by elastically bringing the valve seat into contact with the outer edge portion of the elastic valve element annularly, a closed state of the passage is maintained by pressure of fluid from the downstream, the inner portion of the elastic valve element deforms downstream by pressure of the fluid from the upstream, and the outer edge portion of the elastic valve element elastically deforms due to further pressure of the fluid from the upstream to cause the contact between the valve seat and the outer edge portion of the elastic valve element to be partly released to open the passage.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 1.93443
- Patent Class: 222.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14239287', '13638988', '15214482', '12995736', '10757396']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7734303085781421
- 35 USC 102 Novelty (BERT): 0.4866181928343241
- Combined Prediction Score: 0.7447490970037602
- Mean Citation Score: 227.35752
- Max Citation Score: 249.6342
- Similarity Product: 192.34658930296897

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