US 12,407,049 B2
Lift device with internally depletable battery
David Lombardo, Oshkosh, WI (US)
Assigned to OSHKOSH CORPORATION, Oshkosh, WI (US)
Filed by Oshkosh Corporation, Oshkosh, WI (US)
Filed on Aug. 23, 2024, as Appl. No. 18/813,521.
Claims priority of provisional application 63/578,601, filed on Aug. 24, 2023.
Prior Publication US 2025/0070347 A1, Feb. 27, 2025
Int. Cl. H01M 50/204 (2021.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); B60L 1/00 (2006.01); B66F 9/075 (2006.01); B66F 9/24 (2006.01)
CPC H01M 50/204 (2021.01) [H01M 10/425 (2013.01); H01M 10/441 (2013.01); B60L 1/003 (2013.01); B66F 9/07572 (2013.01); B66F 9/24 (2013.01); H01M 2220/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A battery pack for a lift device, the battery pack comprising:
a housing comprising an opening;
a plurality of battery cells positioned within the housing;
a resistor electrically coupled with a positive terminal of the plurality of battery cells and positioned within the housing;
a conductive element positioned within the housing and configured to transition between an open state in which a discharge path is not defined between the positive terminal of the plurality of battery cells and a negative terminal or a ground, and a closed state in which the discharge path is defined between the positive terminal of the plurality of battery cells to the negative terminal or the ground through the resistor; and
a member disposed at the opening and accessible from an exterior of the housing, the member manually transitionable by a technician between a first state in which the conductive element is in the open state, and a second state in which the conductive element is driven into the closed state such that the plurality of battery cells discharge remaining electrical energy via the discharge path;
wherein the member comprises:
a plate having a protrusion in a center, wherein in the first state the member is fastened over the opening such that the protrusion is external to the housing, and wherein in the second state the member is fastened over the opening such that the protrusion extends into the housing through the opening and drives the conductive element into the closed state; or
a screw configured to be received within the opening, the screw configured to be accessed from the exterior of the housing by the technician such that the screw is driven to rotate to translate into the second state to bias the conductive element into the closed state.