Mandrel based helical pull through gun cleaning device
US9658021B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2016 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Feb 2, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A29/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pull through gun cleaning device includes a mandrel with a spiral or helical trough disposed in an outer cylindrical surface of the mandrel. A pull cord includes a cable member covered by a tubular woven sheath. The pull cord is threaded through a tunnel at the first end of the mandrel, wrapped around the mandrel in the spiral or helical trough disposed in an outer cylindrical surface of the mandrel and threaded through a tunnel at the second end of the mandrel to form a mandrel cleaning section. An outside diameter of the mandrel cleaning section is configured such that where the mandrel cleaning section is inserted into one end of the barrel the mandrel compresses to provide a radial force pressing the tubular woven sheath of the pull cord against an inside surface or a rifling of the barrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.