US 12,312,087 B2
PRM-accessible aircraft lavatory
Daniel William Clucas, London (GB); Anthony Ralph Palliser Hudson, London (GB); Mitchell Anderw Johnstone, London (GB); and Raymond John Bettell, London (GB)
Assigned to ST ENGINEERING AEROSPACE LTD, Paya Lebar (SG)
Appl. No. 17/606,083
Filed by ST ENGINEERING AEROSPACE LTD., Paya Lebar (SG)
PCT Filed Aug. 19, 2020, PCT No. PCT/SG2020/050481
§ 371(c)(1), (2) Date Oct. 25, 2021,
PCT Pub. No. WO2021/040615, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 10201908047P (SG), filed on Aug. 30, 2019.
Prior Publication US 2022/0306297 A1, Sep. 29, 2022
Int. Cl. B64D 11/02 (2006.01); B64D 11/00 (2006.01)
CPC B64D 11/02 (2013.01) [B64D 2011/0046 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lavatory unit for an aircraft cabin,
wherein the lavatory unit comprises a perimeter wall that separates an internal space of the unit from space external to the unit, and is configurable between an able-bodied configuration and a Person of Reduced Mobility (PRM)-accessible configuration, wherein the PRM-accessible configuration of the lavatory unit accommodates a PRM in a wheelchair and allows for a transfer from the wheelchair to the toilet,
wherein in the able-bodied configuration the lavatory unit has a first internal floor space and there is a cabin floor space external to the lavatory unit,
wherein the lavatory unit is expandable into the PRM-accessible configuration in which the lavatory unit is expanded to have a second internal floor space, the second internal floor space encompassing a region of the cabin floor space
wherein the perimeter wall comprises a moveable wall assembly, and in the able-bodied configuration the moveable wall assembly is in a retracted configuration, and the moveable wall assembly is moveable into an expanded configuration to expand the lavatory unit into the PRM-accessible configuration; and
wherein in the able-bodied configuration a user can access the first internal floor space via a door opening in the perimeter wall, the door opening having an effective width and wherein movement of the moveable wall assembly from the retracted configuration to the expanded configuration increases the effective width of said door opening to enable a PRM to access the internal floor space.