PATENT CLAIM ANALYSIS

Application Number: 16040901
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["271", "121000"]

Abstract:
A sheet feeding apparatus includes a support member having a support surface, a feed roller, a stopper, and a restriction member. The stopper includes a restriction surface configured to contact leading edges of sheets supported on the support surface. A tangent extends in parallel to the support surface and passes through a point on an outer peripheral surface of the feed roller, and the tangent and the restriction surface of the stopper crosses at an intersection point. When the stopper moves from a first position to a second position, the intersection point moves with a movement velocity in a direction parallel to the tangent, the movement velocity at the intersection point being defined as a specified movement velocity. The restriction member is configured to restrict movement of the stopper such that the specified movement velocity is greater than or equal to a circumferential velocity of the feed roller.

Claim (Index 1):
A sheet feeding apparatus comprising:\n a support member having a support surface configured to support stacked sheets; a feed roller rotatable about a rotation axis located below a portion of the support surface, the feed roller having an outer peripheral surface, at least a portion of the outer peripheral surface protruding through the support surface, the feed roller being configured to feed the sheets supported on the support surface downstream in a conveying direction; a separation roller disposed downstream from the feed roller in the conveying direction, the separation roller being configured to separate a single sheet from the sheets fed by the feed roller and convey the sheet downstream in the conveying direction; a separator disposed upstream from the separation roller in the conveying direction, the separator having an upper end and a lower end, the lower end being located downstream from the upper end in the conveying direction; a stopper, when viewed in a direction of the rotation axis, disposed at least partially overlapping the separator, the stopper being movable between a first position in which the stopper crosses the support surface and restricts leading edges of the sheets supported on the support surface and a second position, downstream from the first position in the conveying direction, in which the stopper is spaced apart from the support surface; and a restriction member configured to hold the stopper in the first position and to restrict movement of the stopper while continuing to support the stopper moving from the first position to the second position, wherein the stopper includes a restriction surface configured to contact the leading edges of the sheets supported on the support surface, wherein, when viewed in the direction of the rotation axis, a tangent extends in parallel to the support surface and passes through a point on an outer peripheral surface of the feed roller, and the tangent and the restriction surface of the stopper crosses at an intersection point, wherein, when the stopper moves from the first position to the second position, the intersection point moves with a movement velocity in a direction parallel to the tangent, the movement velocity at the intersection point being defined as a specified movement velocity, and wherein the restriction member is configured to restrict movement of the stopper such that the specified movement velocity is greater than or equal to a circumferential velocity of the feed roller.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 95.0
- Lexical Diversity: 2.48438
- Patent Class: 271.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15693604', '15693538', '14857490', '14959193', '13292407']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7659593266491158
- 35 USC 102 Novelty (BERT): 0.4927340975215338
- Combined Prediction Score: 0.7386368037363575
- Mean Citation Score: 271.16614
- Max Citation Score: 307.36737
- Similarity Product: 279.2514497553563

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