PATENT CLAIM ANALYSIS

Application Number: 16059612
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["222", "190000"]

Abstract:
A piston pump for dispensing fluid from a reservoir, an improved vacuum relief arrangement in which a passageway for flow of air from the atmosphere into the reservoir is provided at least in part through a piston-forming element of the piston pump.

Claim (Index 7):
A pump as claimed in  claim 6  wherein:\n the air vent chamber closed at its inner end so as to be open merely at its open outer end which is in fluid communication with the reservoir via the transfer port, \n the one-way air vent valve including a flexing air vent disc carried on the stem of the piston-forming element inwardly of the inner flexing disc and extending radially outwardly from the stem within the air vent chamber, \n the air vent disc having an elastically deformable edge portion proximate the chamber wall of the air vent chamber circumferentially thereabout, \n the air vent disc substantially preventing fluid flow in the air vent chamber past the air vent disc in an inward direction, \n the air vent disc elastically deforming away from the chamber wall of the air vent chamber to permit air flow in the air vent chamber past the air vent disc in an axial outward direction when atmospheric pressure is greater than the pressure in the reservoir by a pressure differential greater than the threshold pressure.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 96.0
- Lexical Diversity: 1.33333
- Patent Class: 222.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15106720', '11145221', '15709731', '14607503', '12457476']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.816904772641321
- 35 USC 102 Novelty (BERT): 0.5908091249763002
- Combined Prediction Score: 0.794295207874819
- Mean Citation Score: 433.007256
- Max Citation Score: 532.1684
- Similarity Product: 438.2343532514096

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