PATENT CLAIM ANALYSIS

Application Number: 15906246
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["297", "285000"]

Abstract:
A chair can include a chair back, or backrest, that is coupled to a base of a chair above a seat of the chair. A tilt mechanism can attach the backrest to the base at spaced apart locations. In some embodiments, the tilt mechanism can be configured so that the backrest rotates about multiple pivots as it reclines from an upright position to a reclined position to drive forward motion of the seat during recline of the backrest.

Claim (Index 19):
A chair comprising:\n a seat a backrest a base, the seat supported by the base, at least one portion of the backrest connected to at least one of a seat frame of the seat and the base; and a tilt mechanism attached between the base, the seat, and the backrest, the tilt mechanism comprising:\n seat connections between the seat frame of the seat and a housing of the base that are configured to define a path of travel of the seat when the seat moves during recline of the backrest from an upright position to a reclined position; \n seat pivotal connections between projections of the backrest and the seat frame of the seat that are configured so that the projections rotate during rotation of the backrest from the upright position to the reclined position to drive the seat frame forward along the path of travel during the recline of the backrest from the upright position to the reclined position; \n backrest pivotal connections between vertically extending members of the backrest and vertically extending members of the housing, the backrest rotating about the backrest pivotal connections and the seat pivotal connections during motion of the backrest between the upright position and the reclined position; \n wherein the seat moves forwardly synchronously with rotation of the backrest during recline of the backrest from the upright position to the reclined position; first and second biasing devices attached between the seat frame and the housing, the first biasing device being spaced apart from the second biasing device within the housing, each of the first and second biasing device configured to stretch from a first length to a second length that is longer than the first length when the seat is moved forwardly as the backrest is moved from the upright position to the reclined position, the first and second biasing devices configured to bias the seat to a rearward position to bias the backrest to the upright position; wherein the seat connections between a seat frame of the seat and the housing of the base that are configured to define a path of travel of the seat when the seat moves during recline of the backrest from an upright position to a reclined position comprise first and second seat connections that are aligned with each other and are spaced apart from each other, the seat connections being forward of the seat pivotal connections;\n the seat pivotal connections between the projections of the backrest and the seat frame of the seat that are configured so that the projections rotate during rotation of the backrest from the upright position to the reclined position to drive the seat frame forward along the path of travel during recline of the backrest from the upright position to the reclined position comprise first and second seat pivotal connections that are spaced apart from each other and aligned with each other, the seat pivotal connections being forward of the backrest pivotal connections; and \n the backrest pivotal connections between the vertically extending members of the backrest and the vertically extending members of the housing comprising first and second backrest pivotal connections that are spaced apart from each other and are aligned with each other, the backrest pivotal connections being rearward of the seat connections and the seat pivotal connections; \n wherein the backrest comprises:\n an upper portion, a lower portion having the projections, the projections extending from the lower portion of the backrest into the housing, the upper portion, lower portion, and the vertically extending members of the backrest defining at least one opening; \n wherein the vertically extending members of the backrest comprise a first vertically extending member and a second vertically extending member, the first vertically extending member adjacent a first side of the backrest and the second vertically extending member adjacent a second side of the backrest.

Metadata:
- Claim Count in Document: 27.0
- Percentile: 88.0
- Lexical Diversity: 1.71429
- Patent Class: 297.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['10376535', '10945838', '15801825', '14348874', '14670192']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8191431181651994
- 35 USC 102 Novelty (BERT): 0.4807719629705744
- Combined Prediction Score: 0.7853060026457369
- Mean Citation Score: 278.83447400000006
- Max Citation Score: 289.2208
- Similarity Product: 233.9706156668663

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