PATENT CLAIM ANALYSIS

Application Number: 16178937
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-05
Patent Classification: ["042", "071010"]

Abstract:
A handguard assembly for a firearm includes a handguard with an internal clamping area. A single-piece index block includes a securing portion for connecting to the handguard and an indexing extension for engaging an indexing feature on the upper receiver of the firearm. The handguard includes internal ribs that provide discrete clamping surfaces for engaging a barrel nut of the firearm. Connecting the index block to the handguard generates a continuous clamping action in the handguard which acts through the ribs to apply a radially-directed circumferentially-applied clamping force on a barrel nut through the discrete clamping surfaces. The indexing feature of the index block engages an indexing feature of the upper receiver to ensure proper alignment of the handguard and the upper receiver.

Claim (Index 1):
A handguard assembly for a firearm including an upper receiver having a receiver rail and a barrel communicating with the upper receiver, the handguard assembly comprising:\n a barrel nut adapted for threaded engagement with the upper receiver to secure the barrel to the upper receiver, the barrel nut having an outer surface; a handguard including a handguard rail and a clamping area, the clamping area positioned around the outer surface of the barrel nut and the handguard rail extending away from the barrel nut; and a single-piece index block comprising a securing portion for connecting to the handguard and an indexing extension for engaging an indexing feature of the upper receiver, the securing portion and indexing extension both being integrally formed in the single-piece index block; wherein connecting the handguard to the securing portion of the index block causes the clamping area of the handguard to radially tighten on the outer surface of the barrel nut; and wherein the handguard includes a plurality of internal ribs, each rib defining a discrete clamping surface and wherein the clamping area comprises the cumulative clamping area of the discrete clamping surfaces of the plurality of internal ribs.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 2.37037
- Patent Class: 42.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15885071', '15153464', '13951317', '12214930', '16138388']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8046766095370403
- 35 USC 102 Novelty (BERT): 0.5710723812886215
- Combined Prediction Score: 0.7813161867121985
- Mean Citation Score: 382.18178600000016
- Max Citation Score: 462.9523
- Similarity Product: 453.7575571003318

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

Dataset: test