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 1):
A firearm action comprising:\n a receiver having a boltway defined by a receiver inner surface, a longitudinal axis extending between a rear end and a forward end of the receiver, and a radial dimension transverse to the longitudinal axis; a bolt longitudinally-slidable in the boltway, the bolt comprising multiple locking lugs spaced apart around a forward end of the bolt; and lug stops each extending radially into the boltway and each having a forward-most extremity; wherein an axial portion of the receiver inner surface forward of the forward-most extremity of the lug stops comprises multiple ramps each having a crest surface and a trough surface, wherein each trough surface has a trough diameter and each crest surface has a crest diameter that is smaller than the trough diameter; wherein the bolt is rotatable in the boltway from an unlocked position where the locking lugs outer extremity surfaces are at the trough surfaces and distanced from the trough surface greater than or equal to 0.010 inches, to a locked position where the outer extremity surfaces of the locking lugs are at the crest surfaces and mate with the crest surfaces by being less than 0.0040 inches from the crest surfaces 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): 0.8218852517240094
- 35 USC 102 Novelty (BERT): 0.6428522965398435
- Combined Prediction Score: 0.8039819562055928
- Mean Citation Score: 415.418374
- Max Citation Score: 661.72144
- Similarity Product: 604.6469750252152

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