US 2011/0031099 A1Published application

Dome shaped spring and switch

AssigneeMitsumi Electric Co., Ltd.

InventorsShigenori INAMOTO, Chikara Sekiguchi, Masahiko Aranai

Life of this patent

Estimating the term…

Abstract

Disclosed is a dome shaped spring including: a dome shaped spring section in which buckling occurs by pushing, wherein at least a portion of a neutral face of a movable portion when buckling of the dome shaped spring section occurs is an aspherical shape.

Claims6

Dependent claims

A dome shaped spring comprising:

a dome shaped spring section in which buckling occurs by pushing, wherein
at least a portion of a neutral face of a movable portion when buckling of the dome shaped spring section occurs is an aspherical shape.

Dependencies are inferred from the claim text.

Facts

Application: 12/848,383Filed 2 Aug 2010
Priority: JP 2009-1829396 Aug 2009
Published: 10 Feb 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H01H 13/85
Characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback:…
H01H 13/7006
Having a plurality of operating members associated with different sets of contacts, e.g. keyboard: comprising a separate movable contact element…
H01H 2205/034
Several contacts formed in one plate or layer: with snap action
H01H 2215/008
Collapsible dome or bubble: part of substrate or membrane

Family

US 8,389,885 B2Related patent
US 2011/0031099 A1This patent

From the US filing history. Foreign family members aren’t listed.

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