PATENT CLAIM ANALYSIS

Application Number: 15941008
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-08
Patent Classification: ["073", "861470"]

Abstract:
The invention discloses a fluid sensing device provided in a flow path through which fluid flows, including a base fixed in the flow path; a piston core rod disposed in the base and connected to the base through an elastic member, the piston core rod being provided with a pushing surface pushed by the fluid in the flow path; a magnet provided on the piston core rod; a magnetic sensing device provided on a side surface of the piston core rod to sense change of magnetic line received as change of position of the magnet, thereby determining whether fluid flows in flow path; wherein the elastic member is disposed such that direction of the restoring force thereof is opposite to the direction of fluid flow in flow path. The present invention has fewer parts and easy production, and can reduce judgement difference caused by low flow rate.

Claim (Index 5):
The fluid sensing device according to  claim 4 , wherein a second through hole is arranged on the base, the downstream end of the piston core rod along the flow direction of the fluid in the pipe body passes through the second through hole, and is composed of a third part and a fourth part, the third part is located in the base, a cross-sectional dimension of the third part is less than a cross-sectional dimension of the second part, the fourth part passes through the second through hole and is located outside the base, the second through hole is disposed so that the second through hole is in clearance fit with the third part when the piston core rod moves along the flow direction of the fluid in the pipe body, the elastic member is a spring, the piston core rod in the inner part of the base through the third part being connected with the base by the spring, the spring is sleeved on the third part, and two ends of the spring abut against the base and the second part, respectively.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 90.0
- Lexical Diversity: 2.15068
- Patent Class: 73.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13509771', '10910380', '13164852', '14913602', '13603171']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7109708072384663
- 35 USC 102 Novelty (BERT): 0.4790760186593093
- Combined Prediction Score: 0.6877813283805506
- Mean Citation Score: 172.23641200000003
- Max Citation Score: 186.85773
- Similarity Product: 137.93233023265242

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

Dataset: test