PATENT CLAIM ANALYSIS

Application Number: 15768959
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["222", "386500"]

Abstract:
A cartridge for a viscous-material dispenser includes a cylinder and a plunger axially slidably fitted in the cylinder and dividing the cylinder into a filling chamber and a pressurizing chamber and includes a plurality of solid spacers in an annular gap between the plunger and the cylinder for maintaining a minimum spacing between the plunger and the cylinder. The spacers at least partially define a plurality of passages that fluidically connect the filling and pressurizing chambers and are configured such that a first portion of the viscous material extending from the filling chamber into the plurality of passages forms a seal together with the solid spacers to prevent a second portion of the viscous material located in the filling chamber from entering the plurality of passages.

Claim (Index 1):
A cartridge for a viscous-material dispenser configured to discharge a viscous material, comprising:\n a cylinder having a first end and a second end; a plunger axially slidably fitted within the cylinder and dividing the cylinder into an anterior chamber between the first end of the cylinder and the plunger and a posterior chamber between the second end of the cylinder and the plunger, the anterior chamber serving as a filling chamber into which the viscous material is fillable from outside the cylinder; and a seal between an inner circumferential surface of the cylinder and an outer circumferential surface of the plunger, wherein the seal comprises: a plurality of solid spacers in an annular gap between the outer circumferential surface of the plunger and the inner circumferential surface of the cylinder, the plurality of solid spacers preventing the outer circumferential surface of the plunger from radially approaching the inner circumferential surface of the cylinder beyond an approach limit during an operation of the cartridge; and a plurality of axially-continuous clearances between the plunger and the cylinder formed such that the axially-continuous clearances are circumferentially spaced apart from each other by the plurality of spacers, each axially-continuous clearance extending in a direction having an axial directional component and fluidically connecting the anterior chamber and the posterior chamber, and a body of the viscous material extending from the filling chamber into the plurality of axially-continuous clearances such that the plurality of filled axially-continuous clearances and the plurality of spacers together form the seal.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 91.0
- Lexical Diversity: 2.13333
- Patent Class: 222.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15504720', '14388934', '14815105', '13501750', '15097746']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7591119797384472
- 35 USC 102 Novelty (BERT): 0.5420638368528107
- Combined Prediction Score: 0.7374071654498836
- Mean Citation Score: 301.929506
- Max Citation Score: 411.09958
- Similarity Product: 361.3930197812295

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

Dataset: test