Apparatus having friction preventing function and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-9624973-B2
Application number	US-201213653956-A
Country	US
Kind code	B2
Filing date	Oct 17, 2012
Priority date	Mar 19, 2012
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

A friction preventing apparatus and a method of manufacturing the same are provided. The apparatus includes: a first object; a second object spaced apart from the first object and facing the first object; and a plurality of charged nanoparticles provided on a surface of one of the first and second objects, such that the nanoparticles are disposed between the first object and the second object. A potential difference is formed between the first and second objects. The nanoparticles may be positively charged and may adhere to the first object, and the first object has a potential lower than a potential of the second object. The nanoparticles may be negatively charged and may adhere to the second object, and the second object has a potential higher than a potential of the first object.

First claim

What is claimed is:

1. A friction preventing apparatus comprising:
a first object;
a second object spaced apart from the first object; and
a plurality of charged nanoparticles disposed between the first object and the second object,
wherein the nanoparticles are disposed on a surface of one of the first object and the second object a potential difference exists between the first object and the second object to prevent friction between the first object and the second object, and the surface is smooth, and
wherein the first object is configured to be movable with respect to the second object or the second object is configured to be movable with respect to the first object.

2. The apparatus of claim 1 , wherein the nanoparticles are positively charged and are adhered to the first object, and wherein the first object has a potential lower than a potential than a potential of the second object.

3. The apparatus of claim 1 , wherein the nanoparticles are negatively charged and are adheres to the first object, and wherein the first object has a potential higher than a potential of the second object.

4. The apparatus of claim 1 , wherein each of the nanoparticles comprises a charged core and a shell surrounding the core.

5. The apparatus of claim 1 , further comprising a material film covering the nanoparticles and filling gaps between the nanoparticles.

6. The apparatus of claim 1 , wherein the first object has an outer circumferential surface, and the second object surrounds the outer circumferential surface of the first object.

7. The apparatus of claim 1 , wherein the first object is a flat panel, and the second object is moveable with respect to the first object.

8. The apparatus of claim 1 , wherein the first object is a rail, and the second object surrounds the rail.

9. The apparatus of claim 1 , wherein the first object comprises a conductive layer facing the second object and the second object comprises a conductive layer facing the first object.

10. The apparatus of claim 5 , wherein the material film is one of a paint and a paste.

11. The apparatus of claim 1 , wherein the first object is a conductive pipe, and the second object is disposed inside the pipe and is moveable with respect to the pipe.

12. The apparatus of claim 11 , wherein the pipe is one of a gun barrel and a cannon barrel, and the second object is one of a bullet and a cannon ball.

13. The apparatus of claim 1 , wherein the nanoparticles are uniformly distributed in at least one of a plurality of areas on the surface of the one of the first object and the second object.

14. A friction preventing apparatus comprising,
an electrically-conductive first object, an electrically-conductive second object, and a plurality of nanoparticles disposed between the first object and the second object, wherein the nanoparticles are attached to a surface of one of the first object and the second object, potential difference exists between the first object and the second object to prevent friction between the first object and the second object, and the surface is smooth, and
wherein the first object is configured to be movable with respect to the second object or the second object is configured to be movable with respect to the first object.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Cho Sung-Nae

Classifications

• F16C32/0404 Primary

  Electrostatic bearings · CPC title

• Y10T29/49636

  Process for making bearing or component thereof · CPC title

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title

• F41A21/22

  Barrels which have undergone surface treatment, e.g. phosphating {(F41A21/44 takes precedence)} · CPC title

• F41A21/00

  Barrels; Gun tubes; Muzzle attachments; Barrel mounting means (F41A25/00 takes precedence; barrel attachments for firing grenades or riot-control ammunition from smallarms F41C27/06) · CPC title