PATENT CLAIM ANALYSIS

Application Number: 15750853
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["165", "167000"]

Abstract:
A plate heat exchanger has openings in the plates defining supply and return ducts extending through a plate stack. The supply and return ducts are hydraulically connected to flow ducts located between the plates and to a tube arranged coaxially in each of the supply and return duct. The tubes have holes in the tube wall in order to provide the hydraulic connection to the flow ducts. A simple and cost-effective plate heat exchanger which can withstand high pressures is achieved by the tubes extending through the entire stack to form a tie rod between a top side and an underside of the plate stack. The tube has a diameter corresponding to the diameter of the openings in the plates such that the tube wall is firmly metallurgically connected to at least some edges of the openings.

Claim (Index 1):
A plate heat exchanger comprising:\n a plurality of plates arranged to form a plate stack, first openings of the plates aligned to form a supply duct extending through the plate stack and second openings of the plates aligned to form a return duct extending through the plate stack, flow ducts being located between the plates to hydraulically connect the supply and return ducts; a first tube arranged within the supply duct and extending through the entire plate stack, a first end of the first tube being metallurgically joined to a top side of the plate stack and a second end of the first tube being metallurgically joined to a bottom side of the plate stack in order to function as a first tie-rod connection through the plate stack; and a second tube arranged within the return duct and extending through the entire plate stack, a first end of the second tube being metallurgically joined to a top side of the plate stack and a second end of the second tube being metallurgically joined to a bottom side of the plate stack in order to function as a second tie-rod connection through the plate stack.

Metadata:
- Claim Count in Document: 31.0
- Percentile: 88.0
- Lexical Diversity: 2.05797
- Patent Class: 165.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16099905', '15517661', '13322302', '11664719', '11702755']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8418834943267104
- 35 USC 102 Novelty (BERT): 0.4802680493168846
- Combined Prediction Score: 0.8057219498257278
- Mean Citation Score: 209.35893
- Max Citation Score: 222.02477
- Similarity Product: 166.68481933420773

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