US 10,376,434 B2
Person lift devices and scale assemblies for person lift devices including accessory tracking features
Mattias Andersson, Södra Sunderbyn (SE); Andreas Bolin, Gammelstad (SE); Marica Demby, Luleå (SE); Peter Rydstrom, Gammelstad (SE); and Douglas A. Seim, Okeana, OH (US)
Assigned to Liko Research & Developmetn AB, Luleå (SE)
Filed by Liko Research & Development AB, Luleå (SE)
Filed on Jul. 19, 2016, as Appl. No. 15/213,968.
Claims priority of provisional application 62/199,603, filed on Jul. 31, 2015.
Prior Publication US 2017/0027794 A1, Feb. 2, 2017
Int. Cl. A61G 7/10 (2006.01); G01G 19/52 (2006.01)
CPC A61G 7/108 (2013.01) [A61G 7/1017 (2013.01); A61G 7/1046 (2013.01); A61G 7/1051 (2013.01); A61G 7/1061 (2013.01); A61G 7/1065 (2013.01); G01G 19/52 (2013.01); A61G 2203/32 (2013.01); A61G 2205/60 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of operating a scale assembly for a person lifting device, the method comprising:
detecting an identification of a sling bar with an accessory detector of the scale assembly;
detecting an identification of an accessory with at least one of the accessory detector and a coupling detector of the scale assembly;
detecting a force applied to the scale assembly with at least one force sensor positioned at least partially within an outer housing, wherein the at least one force sensor is coupled to and positioned between an upper member and a lower member of the scale assembly;
comparing the identification of the accessory with an array of one or more compatible accessories associated with the identification of the sling bar, automatically with an electronic control unit that is communicatively coupled to at least one of the accessory detector and the coupling detector;
communicating a warning signal when the identification of the accessory is not in the array of one or more compatible accessories, automatically with the electronic control unit;
detecting an identification of an accessory coupling member of the accessory attached to a lifting hook of the sling bar with the coupling detector;
comparing the identification of the accessory coupling member with an array of one or more compatible accessory coupling members associated with the lifting hook of the sling bar automatically with the electronic control unit; and
communicating a warning signal when the identification of the accessory coupling member is not in the array of one or more compatible accessory coupling members, automatically with the electronic control unit.