Polishing bonnet

• US 5,375,289 A
• Filed: 02/10/1992
• Issued: 12/27/1994
• Est. Priority Date: 02/13/1991
• Status: Expired due to Term

• Current Assignee: Chiyoda Mfg. Co., Ltd.
• Original Assignee: Chiyoda Mfg. Co., Ltd.
• Inventors: Miyaoka, Atsushi
• Primary Examiner(s): Simone, Timothy F.
• Assistant Examiner(s): BRINSON, PATRICK F
• Application Number:
  US07/833,361
• Time in Patent Office: 1,051 Days
• Field of Search: 15/230, 15/230.12, 15/207.1, 15/230.16, 51/395, 51/394, 51/400-402
• US Class Current: 15/230
• CPC Class Codes: B24B 23/02 with rotating grinding tools; Accessories therefor
• CPC Class Codes: B24B 29/00 Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents polishing tools in general B24D13/00
• CPC Class Codes: B24D 13/147 comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material

Abstract

The cleaning and polishing pad of this invention has extremely fine microfibers ranging in thickness up to one denier. In addition, the microfibers have a polygon configuration which provides edges that enhance the cleaning ability of the fibers. The pad can be attached to the rotating disk of a polisher by a bolt extending through an aperture in the pad. Alternatively, the pad can fit over the rotating disk like a shower cap where an elastomeric band is provided around an inner opening of the pad.

Claims

1. A disk-like polishing pad comprising a main body having positioned on its upper face an attachment means, and on an opposite lower face a plurality of exposed microfibers, said microfibers each having a clearance therebetween and having a polygon shape with edge portions to form thereby a polishing disk of increased fiber density on said lower face, said edge portions providing means for improved cleaning and polishing, each microfiber having a diameter less than 1.0 denier and wherein said microfibers are dispersed on the lower face in stripes or lines with spaces therebetween.

2. The pad of claim 1 having microfibers that extend upwardly as single strands having clearance therebetween.

3. The pad of claim 1 having microfibers that extend upwardly to form a moquette face having clearances between each microfiber.

4. The pad of claim 1 wherein said microfibers are made from a material selected from the group consisting of polyester, acrylics, nylon, other synthetic materials, cotton, wool and mixtures thereof.