PATENT CLAIM ANALYSIS

Application Number: 16330078
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["376", "313000"]

Abstract:
Controlled-debris elements inhibit the formation of a fibrous/particulate debris bed that unduly increases the pressure head loss through the perforated plates of strainers in a nuclear power plant emergency core cooling system. In a loss of cooling accident, pumps draw cooling water through the plates, which retain on their surfaces fibrous material in the circulating water to prevent it from reaching the pumps while permitting entrained particulate matter to pass through the perforations. The controlled-debris elements have a specific gravity substantially the same as the circulating water so they are entrained in the cooling water that is drawn toward the strainers and intimately intermix with the fibrous and particulate matter in the cooling water. The elements are configured to provide open structures in the bed formed on the plate surfaces to distribute fibers in the flow away from the surface and maintain cavities between the elements for the particulates.

Claim (Index 18):
A nuclear power plant having an emergency core cooling system for circulating cooling water during a time period beginning near the onset of a power plant loss of cooling accident (LOCA) releasing debris into the cooling water, the cooling system comprising:\n a strainer disposed for immersion in a cooling water reservoir during the LOCA, the strainer comprising at least one plate having perforations therethrough from a first side to a second side of the plate and a suction opening for connection to an ECCS pump for drawing the circulating cooling water through the perforations from the first side to the second side; and controlled-debris means for forming on the strainer surface a debris/element layer with open spaces as the cooling water is drawn toward the first side of the plate by the ECCS pump, wherein the controlled-debris means is constructed to be entrained with the fibrous and particulate material in the water drawn toward the first side of the plate and form open spaces in the debris/element layer to permit passage through the layer of debris capable of passing through the perforations.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 99.0
- Lexical Diversity: 1.74157
- Patent Class: 376.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11596097', '12465253', '12568327', '14031185', '13396396']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6732669091283823
- 35 USC 102 Novelty (BERT): 0.541397378345594
- Combined Prediction Score: 0.6600799560501035
- Mean Citation Score: 323.572048
- Max Citation Score: 392.59662
- Similarity Product: 346.31031545657873

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