# US 2014/0154080 A1 · Grinder

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0154080 A1
- Document ID: US20140154080A1
- Status: Published application
- Kind: A1
- Application number: 14/172,590
- Filed: 2014-02-04
- Published: 2014-06-05
- Earliest claimed: 2009-06-29
- Assignees: Energy Creates Energy LLC
- Inventors: Kyle T. Watts
- Web page: https://patentgrep.com/patent/US20140154080A1

## CPC

- F04D 19/002: {Axial flow fans}
- B02C 13/1814: {by means of beater or impeller elements fixed on top of a disc type rotor}
- B02C 13/282: Shape or inner surface of mill-housings
- B02C 13/288: Ventilating, or influencing air circulation
- F04D 29/287: {with adjusting means}
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)
- B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02})

## Abstract

A grinder includes a generally vertical, rotatable shaft having at least one set of cutter blades driven thereby and a fan assembly mounted on the shaft below the cutter blades in position to receive output therefrom. The fan assembly includes a fan disc secured to the shaft and rotatable therewith. Fan blades are secured to the fan disc in a generally radial orientation. Each fan blade includes a bottom flange secured to a top surface of the fan disc, a web extending upwardly from the bottom flange and a top flange extending outwardly from the web in a direction of rotation of the fan disc. The fan blades are preferably moveably mounted to the fan disc such that the angle of the fan blades relative to a true radial orientation can be adjusted.

## Claims

### Claim at position 1

-12. (canceled)

### Claim 13

A fan assembly to secure to a rotatable shaft of a grinder to provide airflow through the grinder, comprising:
a fan disc, the fan disc having a direction of rotation;
a plurality of fan blades; each of the fan blades having a web extending upwardly from the fan disc and a top flange extending outwardly from the web in the direction of rotation of the fan disc.

### Claim 14 (depends on 13)

The fan assembly according to claim 13, wherein:
the web extends generally vertically upward from the fan disc; and
the top flange extends generally horizontally outward from the web.

### Claim 15 (depends on 13)

The fan assembly according to claim 13, wherein each fan blade further includes a base flange and the web is connected to the base flange along an edge of the base flange oriented in the direction of rotation of the fan disc; and the top flange is connected to the web along a top edge thereof.

### Claim 16

A fan assembly to secure to a rotatable shaft of a grinder to provide airflow through the grinder, comprising:
a fan disc, the fan disc having a direction of rotation; and,
a plurality of fan blades connected to a top surface of the fan disc and positionable in selected angular orientations relative to the top surface by pivoting the fan blades relative to the top surface and fastening the fan blades to the top surface.

### Claim 17 (depends on 16)

The fan assembly according to claim 16, wherein each the fan blade is connected to the fan disc by a plurality of fasteners.

### Claim 18 (depends on 17)

The fan assembly according to claim 17, wherein the plurality of fasteners connecting the fan blade to the fan disc includes a first fastener received through a first hole in the fan disc proximate an outer edge of the fan disc.

### Claim 19 (depends on 18)

The fan assembly according claim 18, wherein the plurality of fasteners includes a second fastener and the fan disc has multiple second holes formed therein in which the second fastener can be selectively installed to secure the fan blade to the fan disc while the first fastener is received in the first hole and connects the fan blade to the fan disc.)