Passive buffer brush air cooling

Patent metadata

Field	Value
Publication number	US-9227287-B2
Application number	US-201313788915-A
Country	US
Kind code	B2
Filing date	Mar 7, 2013
Priority date	Dec 2, 2009
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

Abstract

In one embodiment, the present invention provides a buffer brush. When rotating, the buffer brush acts as a centrifugal pump. The buffer brush contains a core having a first side and a second side and the brush extends racially from the surface of the core. The first and second sides have at least one opening configured to allow air to flow laterally through the core. Vents on the surface of the cure are configured to allow air flowing laterally through the core to also flow radially through the vents into the brush.

First claim

The invention claimed is:

1. A method for manufacturing a retreaded tire comprising:
providing at least one buffer brush comprising:
a first end plate having a plurality of openings and a second end plate having a plurality of openings;
at least one brush segment comprising a brush segment core, the at least one brush segment core forming therein openings that allow air to traverse the brush segment core in a lateral direction and disposed at a radial distance from a rotational axis of the at least one brush segment, vents communicating with the openings and configured for radial air flow, each of the vents being in communication with at least two of the openings formed in the brush segment core, and brush bristles extending radially from the brush segment core;
the at least one brush segment mounted between the first end plate and the second end plate and configured such that air can flow through the openings in the first end plate and through the openings in the second end plate and through the openings formed in the brush segment core, the openings in the brush segment core configured for lateral air flow and the vents configured for radial air flow;

cooling the buffer brush by rotating the buffer brush such that air flows laterally through the openings in the brush segment core and radially through the vents;
processing a tread section through the at least one buffer brush such that the processed tread section has a texturized surface;
buffing a tire casing such that a worn tread is removed from the casing; and
applying the tread section to the tire casing.

2. The method of manufacturing according to claim 1 wherein the brush segment cores of a plurality brush segments comprise a brush assembly core.

3. The method of manufacturing according to claim 1 wherein the step of buffing a tire casing further comprises using the at least one buffer brush to buff the tire casing.

4. The method of manufacturing according to claim 1 wherein the buffer brush is a wire brush.

5. The method of manufacturing according to claim 1 wherein the step of rotating further comprises rotating the buffer brush with an electric motor.

Assignees

• Bridgestone Bandag Llc

Inventors

• Kost Troy A

Classifications

• B24B1/00 Primary

  Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes · CPC title

• B24B55/06

  Dust extraction equipment on grinding or polishing machines (B24B31/12 takes precedence) · CPC title

• B24D13/18

  with cooling provisions · CPC title

• B29D2030/541

  Abrading the tyre, e.g. buffing, to remove tread and/or sidewalls rubber, to prepare it for retreading · CPC title

• B24D13/10

  comprising assemblies of brushes · CPC title