EP 2635160 A4 20140326 - CUSHION AND SELF-ADJUSTING VALVE
Title (en)
CUSHION AND SELF-ADJUSTING VALVE
Title (de)
POLSTER SOWIE SELBSTNACHSTELLENDES VENTIL DAFÜR
Title (fr)
COUSSIN ET VALVE AUTO-RÉGLABLE
Publication
Application
Priority
- US 40877410 P 20101101
- US 2011058582 W 20111031
Abstract (en)
[origin: WO2012061292A2] A cushion with a support pad comprising a plurality of compressible suspension elements with a cover top and bottom joined together to form an impervious barrier, and a valve in fluid communication with the plurality of compressible suspension elements that allows the controlled expulsion of air until a user positioned on the cushion is optimally immersed in the cushion. When the user is removed from the cushion, the valve allows ingress of air into the cushion. In one aspect, the valve comprises an expansion valve controls air flow out of and into the cushion. In one aspect, the valve comprises a labyrinth seal that dampens air flow and pressure spikes. The valve comprises a pressure responsive compression spring that controls the expulsion of air from the cushion and, consequently, adjusting the immersion depth of the seated user.
IPC 8 full level
A47C 27/10 (2006.01); B60C 29/00 (2006.01); F16K 15/20 (2006.01); F16K 17/04 (2006.01)
CPC (source: EP US)
A47C 7/021 (2013.01 - EP US); A47C 27/081 (2013.01 - EP US); A47C 27/088 (2013.01 - EP US); A47C 27/10 (2013.01 - US); F16K 15/044 (2013.01 - EP US); F16K 15/20 (2013.01 - EP US); F16K 15/207 (2013.01 - EP US); F16K 17/0406 (2013.01 - EP US); F16K 17/0413 (2013.01 - EP US); F16K 17/048 (2013.01 - EP US); Y10T 137/7771 (2015.04 - EP US)
Citation (search report)
- [A] GB 2325495 A 19981125 - HUNTLEIGH TECHNOLOGY PLC [GB]
- [A] US 2005218367 A1 20051006 - SHINNER NEIL [GB]
- [A] EP 1014017 A2 20000628 - MERLONI ELETTRODOMESTICI SPA [IT]
- [A] DE 4315701 A1 19941117 - SCHUETZ WERKE GMBH CO KG [DE]
- See references of WO 2012061292A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012061292 A2 20120510; WO 2012061292 A3 20120816; CA 2816544 A1 20120510; EP 2635160 A2 20130911; EP 2635160 A4 20140326; US 2013219626 A1 20130829
DOCDB simple family (application)
US 2011058582 W 20111031; CA 2816544 A 20111031; EP 11838620 A 20111031; US 201113882625 A 20111031