PATENT CLAIM ANALYSIS

Application Number: 15899482
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["222", "196000"]

Abstract:
A electrostatic powder feeder includes a body having a cavity. The cavity is shaped and sized to hold a supply of powder particles and is defined by a cavity wall. A diverter is disposed in the cavity and positioned away from the cavity wall so as to create a powder flow space between the diverter and cavity wall. The feeder includes an electrode and a powder landing surface connected to a power supply. The electrode is positioned remotely from the powder landing surface at a distance at which it can act upon powder resting upon the powder landing surface. An aperture through which powder particles may fall is disposed in or proximate to the powder landing surface. An insulator is positioned between the electrode and the powder landing surface. The power supply produces an alternating electric potential that creates an alternating electric field between the electrode and powder landing surface that causes powder particles to oscillate and eventually fall through the aperture. In an alternative embodiment, the powder landing surface is on a diaphragm connected to the body and disposed below the powder flow space. The diaphragm is sized and shaped to hold a quantity of powder falling from the powder flow space. The diaphragm includes an aperture. A vibration actuator is affixed to the diaphragm, which provides a vibratory force to the powder particles.

Claim (Index 1):
A hybrid powder feeder, the feeder comprising:\n a body including a cavity, the cavity shaped and sized to hold a supply of powder particles; a diaphragm disposed within the body but below the cavity such that gravity acting upon the powder particles within the cavity causes the powder particles to fall upon the diaphragm and create a bed of powder particles on the diaphragm; the diaphragm including an aperture; a vibration actuator affixed to the diaphragm; a voltage supply in electrical communication with an electrode disposed remotely from the diaphragm so as to create a space between the electrode and diaphragm; an insulator disposed between the electrode and the diaphragm; the voltage supply producing an alternating current electric potential between the electrode and the diaphragm that creates an alternating electric field within the space; and the electric field created within the space causing the powder particles falling onto the diaphragm to develop an electrical surface charge and be subject to an electrostatic force that causes the powder particles to oscillate between the bed and the insulator and then after a period of oscillation exit through an aperture in the diaphragm.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 88.0
- Lexical Diversity: 2.84524
- Patent Class: 222.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15899451', '14994973', '15023171', '15706188', '10489339']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7091786935054613
- 35 USC 102 Novelty (BERT): 0.549407168395699
- Combined Prediction Score: 0.693201540994485
- Mean Citation Score: 209.090208
- Max Citation Score: 410.5857
- Similarity Product: 348.9886530107617

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