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 11):
The fluid sensing device according to  claim 9 , wherein the base comprises an integral upper part and a lower part, the upper part and the lower part of the base are both internally hollow cylindrical and being communicated with each other and coaxially arranged with the pipe body, the first through hole is arranged on a bottom surface of the upper part of the base, the second through hole is provided on a bottom surface of the lower part of the base, each of the second part and the third part has an outer diameter smaller than the inner diameter of the upper part and the lower part of the base, an outer side wall of the lower part of the base is not in contact with the inner wall of the pipe body, the inner diameter of the downstream end of the pipe body along the flow direction of the fluid in the pipe body is smaller than the outer diameter of the lower part of the base and larger than the inner diameter of the lower part of the base, a plurality of fourth openings is arranged alternately at the side wall of the lower part of the base in the circumferential direction, the numbers of the fourth opening and the third opening are equal and corresponding one to one, the third openings is arranged alternately along an edge of a bottom surface of the lower part of the base, fourth openings penetrate through the side wall of the lower part of the base and communicate with the corresponding third openings, the plurality of fourth openings is arranged such that the second openings are opposite to the fourth openings one by one when the second openings are located in the base, and the base through the upper part of the base is hermetically connected with the upstream end of the pipe body along the flow direction of the fluid in the pipe body.

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): 0.7093845799616312
- 35 USC 102 Novelty (BERT): 0.4865871587901214
- Combined Prediction Score: 0.6871048378444803
- Mean Citation Score: 172.23641200000003
- Max Citation Score: 186.85773
- Similarity Product: 128.15831658723593

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