PATENT CLAIM ANALYSIS

Application Number: 16006787
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["404", "112000"]

Abstract:
A hybrid drive train for a self propelled power trowel includes a frame having a centerline from front to rear, an engine-generator set, a pair of rotors with trowel blades tiltably connected to the frame and positioned to support the frame above a concrete surface being finished, electric motors for driving the rotors, means for tilting each rotor toward and away from the centerline, and means for tilting a rotor fore and aft, parallel to the centerline. A rectifier and inverter in series at the engine-generator output allows engine speed to be regulated by a capacitor bank, and usage of highly efficient brushless AC synchronous motors to drive the rotors. A rechargeable battery may be connected in parallel with the capacitor bank.

Claim (Index 19):
A hybrid drive train for a self propelled power trowel, comprising:\n a frame having a front and a rear and defining a centerline from front to rear; an engine-generator set attached to the frame and configured to provide electrical power to the power trowel; a pair of rotatable rotor assemblies tiltably connected to the frame and configured to contact a concrete surface below the frame and to support the frame thereabove; one or more rectifiers attached to the frame and configured to convert electrical power from the engine-generator set to DC power; and one or more brushless AC synchronous motors electrically connected to the one or more rectifiers and operatively connected to the rotatable rotor assemblies to cause rotation of said rotor assemblies.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 94.0
- Lexical Diversity: 1.78378
- Patent Class: 404.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13676870', '13676880', '15982764', '12317422', '12661007']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7650638079252726
- 35 USC 102 Novelty (BERT): 0.5049837195288092
- Combined Prediction Score: 0.7390557990856262
- Mean Citation Score: 273.620344
- Max Citation Score: 307.2772
- Similarity Product: 261.0270547716141

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

Dataset: test