PATENT CLAIM ANALYSIS

Application Number: 15752097
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["102", "430000"]

Abstract:
Cartridge ammunition ( 10 ) including a projectile ( 12 ) and a cartridge case ( 14 ). The cartridge includes a primer chamber ( 26 ) located adjacent a base wall ( 24 ) for holding a primer ( 28 ), a high pressure chamber ( 30 ) for holding a propellant charge ( 32 ), an intermediate pressure chamber ( 34 ) which surrounds the high pressure chamber, for receiving expanding propellant gases from the high pressure chamber and a low pressure chamber ( 36 ) at a rear end of the projectile for receiving expanding propellant gases from the intermediate pressure chamber. The pressure chambers are delimited by walls defining venting hole through which expanding gases can flow. The three pressure chambers provide for controlled release of gas pressure resulting in attenuation of peak gas pressures within the cartridge.

Claim (Index 1):
A cartridge ammunition including:\n a projectile; and a cartridge including:\n a) a cartridge case having a cylindrical sidewall having an open front end to which the projectile is attached and a base wall extending across the sidewall at a rear end of the cartridge case; \n b) a primer chamber adjacent the base wall in which an initiating primer is held and into which a firing pin of a firing weapon extends for initiating the primer; \n c) a high pressure chamber for holding a propellant charge, which is adjacent to and in communication with the primer chamber; \n d) an intermediate pressure chamber for receiving expanding propellant gases from the high pressure chamber; and \n e) a low pressure chamber at an operative rear end of the projectile, for receiving expanding propellant gases from the intermediate pressure chamber, \n the pressure chambers being delimited by walls within the cartridge case which define at least one high pressure venting hole for expanding propellant gases between the high pressure chamber and the intermediate pressure chamber and at least one intermediate pressure venting hole for expanding propellant gases between the intermediate pressure chamber and the low pressure chamber.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 88.0
- Lexical Diversity: 2.06944
- Patent Class: 102.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12072350', '14898939', '10709011', '14336846', '13597640']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7466701766262972
- 35 USC 102 Novelty (BERT): 0.5198683397424408
- Combined Prediction Score: 0.7239899929379116
- Mean Citation Score: 295.90698600000013
- Max Citation Score: 327.67764
- Similarity Product: 267.9175235293293

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

Dataset: test