Brake apparatus for a moving apparatus driven by linear motor
US6469409B1 · kind B1 · utility
2Cited by
1References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Jan 30, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/309912
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brake apparatus for a moving apparatus driven by a linear motor, to support a headstock. The brake apparatus includes an air cylinder disposed parallel with a travelling direction, a compressor to supply fluid under pressure to the air cylinder, a 2-port solenoid valve disposed on a fluid path connecting from the compressor to the air cylinder, and a controlling device that outputs a signal to open the 2-port solenoid valve during normal operation of the linear motor and controls the 2-port solenoid valve to close when the power supply to the linear motor is interrupted or the linear motor is stopped in an emergency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.