Title:
ENVIRONMENTAL FUSE
Document Type and Number:
WIPO Patent Application WO2005074088
Kind Code:
A3
Abstract:
The invention relates to an environmental fuse, an actuator and to an associated method for protecting the actuator from failure in a specific operating environment. The environmental fuse then comprises a sensor member for detecting any change in the environment deviating from the tolerance allowed by a specific standard, and a functional member comprising functional means for limiting or interrupting the input to said actuator and/or for giving an alarm. The actuator may also comprise an environmental fuse.
Inventors:
SILVENNOINEN MIKA (FI)
Application Number:
PCT/FI2005/000054
Publication Date:
September 29, 2005
Filing Date:
January 28, 2005
Export Citation:
Assignee:
ABB OY (FI)
SILVENNOINEN MIKA (FI)
SILVENNOINEN MIKA (FI)
International Classes:
H02H5/08; G01N33/00; H02H3/05; (IPC1-7): H02H5/08; G01N33/00
Foreign References:
| DE3702970A1 | 1988-08-18 | |||
| US4562723A | 1986-01-07 | |||
| US5668304A | 1997-09-16 | |||
| DE3012076A1 | 1981-10-08 |
Other References:
See also references of EP 1726075A2
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