A lifting device locatable proximal to a chair for raising and lowering a person's legs by an inflatable bag providing a pneumatically resilient leg supporting cushion, which bag is supported by a mounting interposed between the bag and the chair, the mounting being in engagement with the chair to determine...http://www.google.com.au/patents/US5408710?utm_source=gb-gplus-sharePatent US5408710 - Lifting apparatus
