US 12,221,325 B2
Device and method of calculating crane capacity
Timothy J. Davison, Garner, IA (US)
Assigned to Stellar Industries, Inc., Garner, IA (US)
Filed by Stellar Industries, Inc., Garner, IA (US)
Filed on Sep. 18, 2020, as Appl. No. 17/024,771.
Claims priority of provisional application 62/901,847, filed on Sep. 18, 2019.
Prior Publication US 2021/0078838 A1, Mar. 18, 2021
Int. Cl. G01G 19/14 (2006.01); B66C 13/16 (2006.01); G01S 11/08 (2006.01); G01S 13/76 (2006.01)
CPC B66C 13/16 (2013.01) [G01G 19/14 (2013.01); G01S 11/08 (2013.01); G01S 13/76 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of calculating crane capacity of a crane, the method comprising:
arranging a utility truck having the crane near a load intended to be lifted by the crane;
placing a handheld device near the load, the handheld device having a user interface and a transmitter to transmit a signal;
transmitting the signal from the handheld device to the utility truck, the utility truck having an electronic memory storing information regarding characteristics of the crane; and
calculating the crane capacity of the crane using a processor, wherein the processor calculates crane capacity using the signal to determine a distance from the handheld device to the utility truck and the information regarding the characteristics of the crane stored in the memory of the utility truck, and the utility truck has a transmitter configured to send a signal to the handheld device for reception by a user through the user interface, wherein the handheld device uses the signal from the transmitter of the utility truck to display, on the user interface, information indicating the capacity of the crane.