PATENT CLAIM ANALYSIS

Application Number: 15985954
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["089", "185000"]

Abstract:
Provided is a firearm bolt having a rotating bolt body with a longitudinal axis with an extractor on the bolt body at a radial position relative to the axis. There are at least first and second transverse bores in the bolt body at an acute angle to one another converging at the longitudinal axis for selectively receiving a cam pin. Configuration of the bolt in a bolt carrier with a cam pin in the first transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to one side, and configuration with the cam pin in the second transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to an opposite side.

Claim (Index 4):
A bolt carrier assembly for a direct impingement gas-operated firearm, comprising:\n a rotating bolt body having a longitudinal axis having at least first and second transverse bores in the bolt body at an angle to one another converging at the longitudinal axis for selectively receiving a cam pin, an annular shoulder providing a piston surface, and a boss extending around a portion of the annular shoulder; a bolt carrier body configured to slide within a firearm receiver, the body having a longitudinal bore configured to receive the bolt carrier body and a helical slot configured to guide a cam pin; a gas chamber defined by a portion of the longitudinal bore and the annular shoulder of the bolt, the annular shoulder defining a movable piston to allow the volume of the chamber to vary when axially displaced relative to the bolt carrier body; a gas key on the bolt carrier body for directing gas into the gas chamber; and first and second side gas vents, each of opposite sides of the bolt carrier body, providing fluid communication between one portion of the gas chamber and the atmosphere, wherein configuration of the bolt in the bolt carrier with a cam pin in the first transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to one side and the boss to block the first side gas vent, and configuration with the cam pin in the second transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to an opposite side and the boss to block the second side gas vent.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 93.0
- Lexical Diversity: 2.31481
- Patent Class: 89.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15852091', '12246315', '14205960', '11055580', '11523339']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7967117985491126
- 35 USC 102 Novelty (BERT): 0.4960493578427369
- Combined Prediction Score: 0.766645554478475
- Mean Citation Score: 277.014974
- Max Citation Score: 295.0318
- Similarity Product: 259.40158988337515

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