PATENT CLAIM ANALYSIS

Application Number: 15771444
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["074", "321000"]

Abstract:
The reduction gear includes a pair of gears installed in parallel between two shafts and each provided with a mobile wheel free to move axially to engage in turn with one of the shafts and to transmit movement with different ratios. Since the gear teeth are helical, opposite forces on the reduction gear make it changeover from one reduction ratio to the other. No external control is necessary. Application to mechanical transmissions between an engine and a reversible electrical machine (starter or generator), that starts the motor with a large speed reduction and generates electricity with a smaller reduction.

Claim (Index 5):
A reduction gear comprising two gears with different tooth reduction ratios, each gear having a first toothed wheel mounted on the same first shaft and a second toothed wheel mounted on the same second shaft, the first toothed wheels being mobile toothed wheels free to slide on the first shaft and both being provided with mesh relief with complementary relief on the first shaft, said relief of the mobile toothed wheels being present on a lateral side of the toothed wheels, the mobile toothed wheels being installed free to rotate on the first shaft but fixed in rotation with the first shaft at corresponding gear positions in which their relief engages with the relief on the first shaft, in which the teeth of the mobile toothed wheels are helical and have inclinations in the same tangential direction relative to the first shaft, the meshing positions extending between the mobile toothed wheels, wherein the first shaft carries a freely sliding spacer, that can come into contact with the two mobile toothed wheels simultaneously, keeping them at an distance that prevents the gear positions from being engaged simultaneously.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 91.0
- Lexical Diversity: 1.46575
- Patent Class: 74.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10617680', '14648114', '11658009', '13516988', '15789807']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7898940012554984
- 35 USC 102 Novelty (BERT): 0.4178073720540041
- Combined Prediction Score: 0.752685338335349
- Mean Citation Score: 145.9602
- Max Citation Score: 149.0161
- Similarity Product: 123.20923659294247

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

Dataset: test