The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 2010
Filed:
Jan. 28, 2005
Applicant:
Mika Silvennoinen, Espoo, FI;
Inventor:
Mika Silvennoinen, Espoo, FI;
Assignee:
ABB Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); G01R 31/02 (2006.01); H01H 85/30 (2006.01);
U.S. Cl.
CPC ...
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.