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 4):
The fluid sensing device according to  claim 3 , wherein the first part and the second part are in a cylindrical shape and arranged coaxially, the first part is in clearance fit with the pipe body, both an inside of the first part and an inside of the second part are hollow and communicating with each other, at least one first opening is disposed on a bottom surface of the first part away from the second part, each of the first openings communicating with an interior of the first part, at least one second opening is disposed at a side wall of the second part, each of the second openings communicating with an interior of the second part, the second opening is configured such that the second opening being entirely located in the base when the first part moves along the flow direction of the fluid in the pipe body to abut the base, and the interior of the second part communicating with an interior of the base through the second opening.

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): 0.7123472768932446
- 35 USC 102 Novelty (BERT): 0.4725460483392963
- Combined Prediction Score: 0.6883671540378498
- Mean Citation Score: 172.23641200000003
- Max Citation Score: 186.85773
- Similarity Product: 146.4394431725228

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