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 12):
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; wherein each of the backrest pivotal connections between vertically extending members of the backrest and vertically extending members of the housing comprises:\n a first axle extending from an upper end of a vertically extending member of the housing to a vertically extending member of the backrest such that the backrest is rotatable about the first axle; \n wherein each of the seat pivotal connections between projections of the backrest and the seat frame of the seat comprises:\n a second axle that extends through a slit defined in the projection of the backrest of the seat pivotal connection adjacent an aperture defined in the seat frame, the second axle pivotally connecting the projection of the backrest to the seat frame so that rotation of the projection that occurs when the backrest is moved from the upright position to the reclined position drives the seat frame forwardly; \n wherein each of the seat connections comprises:\n a connector positioned within an elongated slot defined in the seat frame to attach the seat frame to the housing.

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): 0.4807719916268174
- Combined Prediction Score: 0.7853060055113612
- Mean Citation Score: 278.83447400000006
- Max Citation Score: 289.2208
- Similarity Product: 233.9705984279633

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