EP 0028561 B1 19830216 - CONTROL PUSH BUTTON WITH MAGNETIC RETURN
Title (en)
CONTROL PUSH BUTTON WITH MAGNETIC RETURN
Publication
Application
Priority
FR 7927077 A 19791031
Abstract (en)
[origin: US4342975A] The invention relates to a control key, consisting of a fixed casing, a push-button mounted for sliding in the casing and magnetic means for returning the push-button to its rest position. The casing comprises a hollow center part opened towards the top and of which the bottom is at least partly closed off by a wall of predetermined thickness, to form a housing for a permanent magnet. The said push-button is hollow on the inside so as to cap the said center part, and is provided at its lower end with a plate of magnetic material, closing off the hollow inside of the push-button beyond the said wall. The invention finds an application in keyboard installations.
IPC 1-7
IPC 8 full level
H01H 5/02 (2006.01)
CPC (source: EP US)
H01H 5/02 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0028561 A1 19810513; EP 0028561 B1 19830216; DE 3062066 D1 19830324; FR 2468985 A1 19810508; FR 2468985 B1 19820319; US 4342975 A 19820803
DOCDB simple family (application)
EP 80401521 A 19801027; DE 3062066 T 19801027; FR 7927077 A 19791031; US 19986580 A 19801023