PATENT CLAIM ANALYSIS

Application Number: 16190063
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["042", "016000"]

Abstract:
Components of a firearm having a bolt with locking lugs improve shooting accuracy, due to increased coaxial alignment between the bolt, the cartridge, the receiver, and/or the barrel of a firearm. The receiver inner surface is shaped for lug-cleaning and for close tolerance/mating with the lugs only in the locked position and also with a non-threaded, axial surface of the barrel. Thus, the mating surfaces that are instrumental and/or that mainly control coaxial alignment of the receiver, bolt, and barrel are located between the lug stops and the threaded end of the receiver. The lugs may be axially curved or otherwise axially non-linear to tolerate dirt and other debris in a field environment.

Claim (Index 2):
A firearm action comprising:\n a receiver having a boltway defined by a receiver inner surface, a longitudinal axis extending between a proximal end and a distal end, and a radial dimension transverse to the longitudinal axis; a bolt slidably and rotatably received in the boltway; and lug stops each extending radially into the boltway and each having a distal-most extremity surface; wherein the bolt has multiple locking lugs extending radially from the bolt and each having an outer extremity surface, wherein the bolt is slid distally to move the locking lugs through spaces between the lug stops into an unlocked position, and the bolt is rotated from the unlocked position into a locked position wherein the locking lugs are positioned distal of the lug stops to abut against the distal-most extremity surface of the lug stops during firing to prevent blowback of the bolt; wherein the boltway receiver inner surface comprises crests and troughs that are distal of said distal-most extremity surfaces of the lug stops, and, when the bolt is in the unlocked position, the outer extremity surfaces of the locking lugs are at the troughs, and when the bolt is in the locked position, the extremity surfaces of the locking lugs mate with the crests to center the bolt in the boltway.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 98.0
- Lexical Diversity: 1.83824
- Patent Class: 42.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15047569', '15721612', '15846802', '12409783', '13937028']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8225538324903452
- 35 USC 102 Novelty (BERT): 0.6399951598850611
- Combined Prediction Score: 0.8042979652298168
- Mean Citation Score: 415.418374
- Max Citation Score: 661.72144
- Similarity Product: 595.5195412031172

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