PATENT CLAIM ANALYSIS

Application Number: 16042435
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["105", "377070"]

Abstract:
A manway assembly for a railroad tank car features a nozzle defining a central opening and having a sidewall, a cover, a hinge attaching the cover to the nozzle, and a seal assembly to seal the cover to the nozzle. The seal assembly may include a circumferential seal and a circumferential seal channel. The circumferential seal may include a top portion, a bottom portion opposite the top portion, and a side portion between the top portion and the bottom portion. An underside edge portion of the cover may be provided with the circumferential seal channel. The circumferential seal may be positioned within the circumferential seal channel. The circumferential seal may have a C-shaped cross section and may be positioned in the circumferential seal channel such that the top portion of the seal is seated against a top wall of the circumferential seal channel and the bottom portion of the seal is seated against a circumferential ledge of the nozzle.

Claim (Index 13):
A manway assembly for a railroad tank car, the manway assembly comprising:\n a nozzle defining a central tank opening; a cover defining a stop portion and a circumferential seal channel, wherein the stop portion provides contact with the nozzle when the cover is in a closed position on the nozzle; a hinge attaching the cover to the nozzle so that said cover is pivoted between an open position, where the central tank opening is generally uncovered, and the closed position, where the central tank opening is generally covered by the cover; a latch mechanism to secure the cover to the nozzle; and a seal assembly to seal the cover with the nozzle, the seal assembly including a circumferential seal and a circumferential seal channel, the circumferential seal including a top portion, a bottom portion opposite the top portion, and a side portion between the top portion and the bottom portion, and the circumferential seal channel including a front surface, a back surface opposite the front surface, and a top surface to form the circumferential seal channel, wherein an edge portion of the cover is provided with the circumferential seal channel and the circumferential seal is positioned within the circumferential seal channel, wherein the circumferential seal is positioned in the circumferential seal channel such that a first portion of the seal is seated against a first surface of the circumferential seal channel, and a second portion of the seal opposite the first portion of the seal is seated against the nozzle, and further wherein an internal pressure of the railroad tank car presses the circumferential seal against the circumferential seal channel and the nozzle.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 95.0
- Lexical Diversity: 3.03571
- Patent Class: 105.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15685258', '15017287', '14553610', '13543995', '14791039']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7896016566355293
- 35 USC 102 Novelty (BERT): 0.6009238850117135
- Combined Prediction Score: 0.7707338794731478
- Mean Citation Score: 407.893754
- Max Citation Score: 557.181
- Similarity Product: 526.9864760513307

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