Control for battery powered tool
US5657417A · kind A · utility
1,040Cited by
25References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | May 2, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/937
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool with a battery, an electrical motor, and a control system. The control system has a trigger control that connects the battery to a timer and a voltage monitor. The trigger control has a user actuated switch and a timer actuated switch. At the end of a tool operational cycle, when the user is not actuating the user actuated switch, the timer actuated switch can supply electricity to the control system. After a predetermined period of time, the timer actuated switch can then automatically electrically disconnect the control system from the battery to conserve battery power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.