US 11,685,634 B2
Stairlifts
Nigel Titchener, Andover (GB); and Paul Alexander Cook, Shrewton (GB)
Assigned to Stannah Stairlifts Limited, Hampshire (GB)
Appl. No. 16/637,431
Filed by Stannah Stairlifts Limited, Hampshire (GB)
PCT Filed Jul. 31, 2018, PCT No. PCT/GB2018/052176
§ 371(c)(1), (2) Date Feb. 7, 2020,
PCT Pub. No. WO2019/030498, PCT Pub. Date Feb. 14, 2019.
Claims priority of application No. 1712745 (GB), filed on Aug. 9, 2017.
Prior Publication US 2020/0165103 A1, May 28, 2020
Int. Cl. B66B 9/08 (2006.01); B66B 1/30 (2006.01); B66B 5/00 (2006.01); B66B 5/02 (2006.01)
CPC B66B 9/08 (2013.01) [B66B 1/30 (2013.01); B66B 5/0031 (2013.01); B66B 5/02 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of controlling the operation of a stairlift, comprising a rail, a carriage displaceable along the rail, and a control facility within the carriage configured and operable to control the movement of the carriage on the rail, the method comprising the steps of:
configuring the control facility with defined fixed parameters of the rail;
monitoring for any variations in the parameter of the rail itself, using the control facility to compare, in real time, the defined fixed parameters of the rail within the control facility to the parameters of the rail as the carriage moves along the rail; and
initiating a response in the event of a variation being detected.