Automatic low power consumption mode for combustion tools
US8261847B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2009 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Sep 17, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A combustion tool having a circuit for conserving battery power includes a battery assembly to power at least a portion of the combustion tool, a control circuit to place the combustion tool in an active mode or a low power consumption mode, and a motion sensing circuit to indicate a movement of the combustion tool and to indicate a non-movement of the combustion tool. A timer is set when a movement is detected and resets each time a new movement is sensed. If a new movement is not sensed when a predetermined amount of time has elapsed, the combustion tool enters into a low power consumption mode. The movement may be a vibration or a tilt movement. The motion sensing circuit enables the tool to be actuated without any unnecessary priming when motion is sensed and only minimal current is consumed when motion is not sensed, conserving battery power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.