US 12,407,220 B1
Electricity generating backpack with adaptive electronics for warming batteries in cold temperatures
Lawrence C. Rome, Strafford, PA (US); Sean H. McIntosh, Drexel Hill, PA (US); and Heath F. Hofmann, Ann Arbor, MI (US)
Assigned to Lightning Packs LLC, Strafford, PA (US)
Filed by Lightning Packs LLC, Strafford, PA (US)
Filed on Mar. 15, 2024, as Appl. No. 18/606,752.
Claims priority of provisional application 63/456,824, filed on Apr. 4, 2023.
Claims priority of provisional application 63/452,235, filed on Mar. 15, 2023.
Int. Cl. H02K 7/00 (2006.01); H01M 10/42 (2006.01); H01M 10/63 (2014.01); H01M 50/247 (2021.01); H02K 7/18 (2006.01)
CPC H02K 7/1861 (2013.01) [H01M 10/425 (2013.01); H01M 10/63 (2015.04); H01M 50/247 (2021.01); H01M 2220/30 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An electricity generating backpack comprising:
a harness;
a fixed frame attached to the harness;
a bag;
a spring;
a moving frame attached to the bag and suspended from the fixed frame by the spring;
a pinion on the moving frame;
a rack attached to the fixed frame so as to spin the pinion upon up and down movement of the moving frame relative to the fixed frame;
a generator that generates alternating current (AC) electricity in response to spinning of the pinion by up and down movement of the moving frame relative to the fixed frame;
an electronic control module (ECM) that receives the AC electricity generated by the generator and converts the AC electricity to direct current (DC) electricity; and
an output cable that provides the DC electricity to a load,
wherein the ECM adjusts, in response to a walking or running cadence of a wearer of the backpack, an emulation resistance on the fly to maximize power output generated in response to a payload weight in the bag and an up and down movement of the bag.