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US Patent 6090756 - Ballistics conditioning with molybdenum disulfide

US Patent Issued on July 18, 2000
Estimated Patent Expiration Date: Icon_subject June 26, 2018Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

The present invention provides compositions and methods for the coating and/or ballistics conditioning of firearm projectiles and firearm components including gun barrels, firearm chambers, fully assembled cartridges, shot gun shells, shotgun wads, shot capsules and sabots with molybdenum disulfide. The composition comprises powdered molybdenum disulfide suspended in a carrier comprising a volatile solvent and a binder selected from cellulosic-, alkyd- and acrylic-resins. Methods for the conditioning of firearm bores by the formation of a hardened layer comprising a product of the reaction or interaction of molybdenum disulfide with materials in the barrel bore are also disclosed.

Other References

  • Dow-Corning Publication, "Illustrated Mechanism of Molybdenum Disulfide Lubrication." (no date)
  • D. Brennan, "Norma Introduces Moly-Coated-Bullet-Target-Cartridge Line," Precision Shooting, pp. 19-21, Aug. 1995
  • Letter to the Editor or Precision Shooting, p. 5, Feb. 1996
  • C. F. Young, "Moly-Lube, a Tried and Tested Art," Precision Shooting, pp. 63-71, Aug. 1996
  • M. L. McPherson, "So Just Exactly How Does a Barrel Wear Out?," Precision Shooting, pp. 94-96, Nov. 1996
  • C. F. Young, "MolyGrease--The Sequel," Precision Shooting, pp. 67-75, Dec. 1996
  • L. Elliott, "Moly Coating, A New Revolution," The Varmint Hunter, Issue 22, pp. 161-167, Apr. 1997
  • Information About Dow Corning Z-Moly-Powder, product information from Dow Corning Customer Service, Midland, Michigan
  • "`Moly` The Super Lubricant," description of "Fastart" lubricant, downloaded from the Internet site of Beslub International Ltd. on May 10, 1997
  • David Brown, Moly--And It's Application for Ballistics Use, Shooter's News, pp. 34-42, Nov. 1997
  • K-G Products "Bullet Kote" molybdenum disulfide bullet coating formulation product information downloaded from the Internet Jun. 12, 1998
  • K-G Products "KG-6 Moly Bore Prep" molybdenum disulfide formulation for embedding a thin moly film on the bore of a rifle. Product information downloaded from the Internet Jun. 12, 1998
  • Label: "Saf-T-Eze Dry-Moly," STL Compound Corporation, Lombard, IL 60148
  • "Neco-Coat Bullet Moly Coating," pp. 3-1

Inventor

Assignee

Application

No. 105566 filed on 06/26/1998

US Classes:

508/118, The organic -C(=O)O- compound is a polymer resulting from polymerization of an olefinic double bond (e.g., ethylene-vinyl acetate copolymer, polyacrylate, etc.)102/511, Lubricating427/407.1, Synthetic resin coating427/419.7, Boride, carbide, nitride, phosphide, silicide, or sulfide-containing coating508/129, With inorganic compound (except water)508/131, With synthetic polymer (e.g., ethylene-propylene copolymer, etc.)508/155, The inorganic compound contains boron (e.g., boron nitride, boramine, etc.)508/167The heavy metal is molybdenum or tungsten (e.g., molybdenum sulfide, etc.)

Field of Search

508/118, The organic -C(=O)O- compound is a polymer resulting from polymerization of an olefinic double bond (e.g., ethylene-vinyl acetate copolymer, polyacrylate, etc.)508/167The heavy metal is molybdenum or tungsten (e.g., molybdenum sulfide, etc.)

Examiners

Primary: McAvoy, Ellen M.

Attorney, Agent or Firm

US Patent References

2442155, 3249538, 3390080, 3909424, 4066605, Composition for rehabilitating scored and marred surfaces
Issued on: 01/03/1978
Inventor: McBride ,   et al.
4196670, Method of coating bullets to reduce the leading effect thereof on the bores of firearms
Issued on: 04/08/1980
Inventor: Vatsvog
4239006, Self lubricating sabot
Issued on: 12/16/1980
Inventor: Kelson
4328750, Plastic coated ammunition and methods of manufacture
Issued on: 05/11/1982
Inventor: Oberg ,   et al.
4454175, Method of applying lubricant coating to bullets
Issued on: 06/12/1984
Inventor: Martin
4465883, Bullet lubricant and method of coating bullets with said lubricant to reduce the leading effect thereof on the bores of firearms
Issued on: 08/14/1984
Inventor: Lopata ,   et al.
4731189, Bullet lubricant and method of compounding said lubricant
Issued on: 03/15/1988
Inventor: Gregg, Jr.
4808324, Lubricant system for sheet and section rolling mills
Issued on: 02/28/1989
Inventor: Periard ,   et al.
4858534, Ballistic lubricating and process
Issued on: 08/22/1989
Inventor: Wallace
5062974, Munitions lubricant and protector
Issued on: 11/05/1991
Inventor: Van Meter
5233128, Barrel-cleaning bullet
Issued on: 08/03/1993
Inventor: Lai
5341744, Cleaning shell for firearms
Issued on: 08/30/1994
Inventor: Shi
5372154, System for cleaning threaded portions of tubular members
Issued on: 12/13/1994
Inventor: Bee, et al.
5378499Method of applying abrasives to bullets for use in pressure (fire) lapping of gun barrels
Issued on: 01/03/1995
Inventor: Martin, et al.

International Classes

C10M 125/00
C10M 107/00

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