EP 0373544 A3 19910925 - DELAYED-ACTION RELAY
Title (en)
DELAYED-ACTION RELAY
Publication
Application
Priority
DE 3842171 A 19881215
Abstract (en)
[origin: EP0373544A2] The monostable delayed-action relay carries a wire made of a shape memory alloy in the exciter component, the excitation current heating this wire by means of an exchangeable thick-film resistor. The contraction of the wire associated with the heating is used to actuate a spring-operated switch in the switching component, the restoring spring of said spring-operated switch generating at the same time the tensile stress required for the wire made of the shape memory alloy. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 61/01 (2006.01); H01H 61/02 (2006.01)
CPC (source: EP)
H01H 61/0107 (2013.01); H01H 61/02 (2013.01)
Citation (search report)
- [A] US 4684913 A 19870804 - YAEGER JOHN R [US]
- [A] US 3858141 A 19741231 - LACKEY R
- [A] US 3676815 A 19720711 - ROCHER GIDEON A DU
- [A] DE 2709175 A1 19780907 - INTER CONTROL KOEHLER HERMANN
- [A] FR 2462013 A1 19810206 - LIMITOR AG [CH]
- [A] DE 1490743 B1 19700618 - TEXAS INSTRUMENTS INC
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
EP 0373544 A2 19900620; EP 0373544 A3 19910925; DE 3842171 A1 19900628
DOCDB simple family (application)
EP 89122747 A 19891209; DE 3842171 A 19881215