Shock tube tip tester
US7458259B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2005 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Dec 16, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D5/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A shock tube tip tester determines reliability of a shock tube tip used in a blasting machine. The blasting machine, using shock tubes for non-electric firing, relies on a shock tube tip to initiate the blast. The shock tube tip tester measures the amount of wear and indicates when a particular shock tube tip should be replaced to help prevent misfires or delays in production due to no-fires. The shock tube tip tester includes a mechanical filter suitable for filtering the shock wave pulse created by the shock tube tip, a pressure sensor for sensing the filtered shock wave pulse, and a microprocessor for classifying the shock tube tip into one of several predefined conditions based on either a peak of the shock wave pulse or an area under the shock wave pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.