US 12,378,979 B2
Dynamic recruitment modulation in systems utilizing variable recruitment
Joseph Hill, Reno, NV (US); and Francis Budu-Manuel, Reno, NV (US)
Assigned to ADARACT TECHNOLOGIES, LTD., Reno, NV (US)
Filed by Adaract Technologies, Ltd., Reno, NV (US)
Filed on Jul. 18, 2023, as Appl. No. 18/354,000.
Application 18/354,000 is a continuation in part of application No. 17/689,352, filed on Mar. 8, 2022, granted, now 11,719,263.
Claims priority of provisional application 63/165,411, filed on Mar. 24, 2021.
Prior Publication US 2023/0380996 A1, Nov. 30, 2023
Int. Cl. F15B 15/10 (2006.01); A61F 2/66 (2006.01); A61F 2/74 (2006.01); F15B 1/04 (2006.01)
CPC F15B 15/103 (2013.01) [A61F 2/6607 (2013.01); A61F 2/741 (2021.08); A61F 2/742 (2021.08); A61F 2/748 (2021.08); F15B 1/04 (2013.01); F15B 2211/65 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A variable recruitment actuator system, comprising:
a high-pressure fluid source to provide a working fluid at a first pressure;
a lower-pressure fluid source to provide the working fluid at a second pressure;
a plurality of actuators;
a variable recruitment actuator mechanism to:
selectively recruit a first subset of the plurality of actuators and to pressurize the first subset of the plurality of actuators with the working fluid from the high-pressure fluid source; and
pressurize a second subset of the plurality of actuators with the working fluid from the lower-pressure fluid source; and
a control system to control the variable recruitment actuator mechanism to selectively recruit the first subset of the plurality of actuators;
wherein the second pressure prevents buckling of a Mckibben muscle.