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 1):
A self propelled power trowel, for finishing a concrete surface, which comprises:\n a rigid frame adapted to be disposed over said concrete surface, said rigid frame having a front and a rear and defining a centerline from front to rear; means attached to the rigid frame for providing electrical power to said power trowel; a pair of rotatable rotor assemblies for frictionally contacting said concrete surface and supporting said rigid frame thereabove, tiltably connected to the rigid frame; electrical motor means operatively connected to the electrical power providing means and operatively connected to the rotatable rotor assemblies for rotating said rotor assemblies; and at least three means for tilting said rotor assemblies, including two means for tilting operably interconnected between the rigid frame and each rotor assembly for selectively and independently tilting each rotor assembly toward and away from the centerline of the rigid frame, and the third means for tilting operatively interconnected between the rigid frame and one of the rotor assemblies for tilting said rotor assembly fore and aft, parallel to said rigid frame centerline.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 94.0
- Lexical Diversity: 1.78378
- Patent Class: 404.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13676870', '13676880', '15982764', '12317422', '12661007']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7860435462436314
- 35 USC 102 Novelty (BERT): 0.5039625485398378
- Combined Prediction Score: 0.7578354464732521
- Mean Citation Score: 273.620344
- Max Citation Score: 307.2772
- Similarity Product: 281.3378766352415

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