PATENT CLAIM ANALYSIS

Application Number: 16096449
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["318", "003000"]

Abstract:
A power tool includes a brushless motor, a supplying circuit, and a controller. The brushless motor is configured to drive and rotate when a voltage applied to the brushless motor is larger than or equal to an induced voltage. The supplying circuit is configured to apply a driving voltage to the brushless motor. The controller is configured to control the supplying circuit. The supplying circuit includes a rectifying circuit, a capacitor, and a switching circuit. The rectifying circuit is configured to rectify an alternating voltage and output a rectified voltage. The capacitor is configured to smooth the voltage inputted via the rectifying circuit. The switching circuit is configured to perform a switching operation based on a PWM signal to adjust a period during which the driving voltage is applied. The controller is configured to set a duty ratio within a prescribed range, and output the PWM signal of the set duty ratio to the switching circuit to control the switching operation. The controller is configured to perform a constant-number-of-rotation control for controlling the brushless motor to rotate at a target rotation number by changing the duty ratio. The capacitor has a capacitance allowing a smoothed voltage to be always larger than or equal to the induced voltage during the constant-number-of-rotation control.

Claim (Index 9):
The power tool according to  claim 1 , wherein the brushless motor includes a rotor configured to rotate about a rotational axis, the power tool further comprising:\n a circuit board to which the switching circuit is mounted; a fan configured to rotate coaxially with the rotational axis; and a housing accommodating the circuit board, the brushless motor, the supplying circuit, and the fan, wherein the housing has a first opening portion and a second opening portion which are formed at different positions, wherein the housing is formed with a first wind path and a second wind path therein, the first wind path extending from the fan to the first opening portion, the second wind path extending from the fan to the second opening portion, wherein the circuit board is disposed on the first wind path, wherein the capacitor is disposed on the second wind path.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 97.0
- Lexical Diversity: 3.06757
- Patent Class: 318.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15554517', '15749045', '15722805', '14379184', '13182332']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6378871249462292
- 35 USC 102 Novelty (BERT): 0.4995274384605292
- Combined Prediction Score: 0.6240511562976593
- Mean Citation Score: 240.171868
- Max Citation Score: 261.77368
- Similarity Product: 212.196190148964

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