Helmet blastometer
US8984664B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2009 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | May 6, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/046
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A helmet blastometer for characterizing the direction, speed, magnitude, and duration of a blast event to determine the likelihood of blast-induced traumatic brain injury (biTBI). Time of arrival (TOA) gage sensors are mounted on a rigid outer shell of the helmet each producing a TOA signal in response to a fast rising blast induced positive pressure change above a predetermined threshold. A receiver analyzes the positive pressure changes from the gages to determine direction, speed, and magnitude of a blast. Other TOA gauge sensors can be used to produce a TOA signal in response to a negative pressure change below a predetermined threshold. The positive and negative pressure change TOA signals are used to determine blast duration. A second set of internal contact pressure sensors is connected to an inner liner of the helmet to detect contact pressure on a user's head to determine if biTBI has been sustained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.