PATENT CLAIM ANALYSIS

Application Number: 16208658
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["166", "364000"]

Abstract:
A subsea hydraulic system comprises a dual (or dual action) check valve on a port for connection to a remotely operated vehicle (ROV). The check valve provides backpressure to flow in either direction. This keeps hydraulic fluid in the hydraulic system, and seawater out. If flow needs to return to the ROV, it may flow out the port, subject to a selected back pressure.

Claim (Index 1):
A dual-action check valve comprising:\n a body having a first bore in a first end of the body said first bore having a first end open to the first end of the body and a second bore in a second, opposing end of the body said second bore having a first end open to the second end of the body, the second bore being substantially parallel to the first bore; a first check valve in said first bore; a second check valve in said second bore; a first cross bore interconnecting the first and second bores at a first location; a second cross bore interconnecting the first and second bores at a second location remote from the first location; a first plug sealing the first end of the first bore in the first end of the body and securing the first check valve in the first bore; and, a second plug sealing the first end of the second bore in the second end of the body and securing the second check valve in the second bore, wherein the first bore in the first end of the body has a first section having a first internal diameter (i.d.), a second section having a second i.d. that is less than the first i.d., and a first inclined shoulder between the first section and the second section, the first check valve in the first bore is sized and configured to seal against the first inclined shoulder, the second bore in the second end of the body has a first section having a first internal diameter (i.d.), a second section having a second i.d. that is less than the first i.d., and a second inclined shoulder between the first section and the second section, the second check valve in the second bore is sized and configured to seal against the second inclined shoulder, the first cross bore interconnects the second section of the first bore with the first section of the second bore, and the second cross bore interconnects the second section of the second bore with the first section of the first bore.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 98.0
- Lexical Diversity: 1.59574
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15723980', '16046074', '15255379', '12653707', '14078157']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7831990706696462
- 35 USC 102 Novelty (BERT): 0.5000662539995454
- Combined Prediction Score: 0.7548857890026361
- Mean Citation Score: 250.43146
- Max Citation Score: 305.576
- Similarity Product: 282.8563517198563

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

Dataset: test