Large bore gun cleaning apparatus with expanding disc mandrels
US10948256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2018 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | May 1, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B2209/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gun cleaning apparatus includes a central member and a plurality of disc mandrels. The central member passes through a hole in each of the disc mandrels. The plurality of disc mandrels is stacked adjacent to one another on the central member. An adjustable end stop has a linear position adjustable in a compression direction, from a first level of linear compression of the plurality of disc mandrels setting a first radii of the disc mandrels, to a second level of linear compression different than the first level of linear compression of the plurality of disc mandrels, setting a second radii of the disc mandrels different than the first radii. A coilable semi-ridged cable pull cord for a gun cleaning apparatus and a method of pulling a gun cleaning apparatus through a bore of a gun in a close quarters or limited space are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.