Inventor

HERRERA GUILLERMO A

US51 patents

⚠️ This page may combine multiple inventors who share the name “HERRERA GUILLERMO A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HERRERA GUILLERMO A

GM GLOBAL TECH OPERATIONS INC

Airflow control devices based on active materials

Compartment access system with active material component and method for controlling access to an interior compartment

Reversibly expandable energy absorbing assembly and methods for operating the same

Discrete active seal assemblies

Active material actuator with modulated movement

Active seal assemblies for sound isolation

Active material actuated flow trips

Reversibly deployable energy absorbing assembly and methods for operating the same

Intrinsic monitoring of shape memory alloy actuated devices

Vehicle sensor system

BROWNE ALAN L

Reconfigurable bi-stable device

Active material based bodies for varying frictional force levels at the interface between two surfaces

Shape memory alloy heat engines and energy harvesting systems

Estimating the remaining life of shape memory alloy actuators

Latchable or lockable device

Shape memory alloy heat engines and energy harvesting systems

Composite bi-stable device

Method of starting and operating a shape memory alloy heat engine

Energy harvesting system

GEN MOTORS CORP

Airflow control devices based on active materials

Reversibly deployable energy absorbing assembly and methods for operating the same

Airflow control devices based on active materials

Airflow control devices based on active materials

Reversibly expandable energy absorbing assembly utilizing shape memory foams for impact management and methods for operating the same

Airflow control devices based on active materials

HRL LAB LLC

Negative stiffness system with variable preload adjustment

Morphing cellular structure

CW LIDAR wind velocity sensor for operation on a stratospheric vehicle

Hingeless, large-throw negative stiffness structure

Hingeless, large-throw negative stiffness structure

Negative stiffness hydraulic system

GAO XIUJIE

Compensating for incomplete reversal in mechanisms incorporating shape memory alloy wire

Method of controlling active material actuation utilizing an operational envelope

Method of reducing the effect of preheat time variation during shape memory alloy actuation

Controlling heat transfer in active material actuators using external elements

GM GLOBAL TECH OPERATIONS LLC

Test method

Method of testing a shape memory alloy element, and a validation system therefor

Slack compensator

KEEFE ANDREW C

Actively controlled texturing systems

Surface texturing using foldable structures and active material actuation

USORO PATRICK B

Belt retractor utilizing active material actuation

Overheating protection for shape memory alloy actuators

HERRERA GUILLERMO A

Method of controlling a shape memory alloy actuator utilizing resistance change

Methods of determining mid-stroke positions of active material actuated loads

GM GOBAL TECHNOLOGY OPERATIONS

Discrete active seal assemblies

MCKNIGHT GEOFFREY P

Methods for varying seal force in active seal assemblies for doors

HENRY CHRISTOPHER P

Thermally activated variable stiffness composites for aircraft seals

MENASSA ROLAND J

Method of manufacturing a load cell assembly and methods of folding a circuit device

DOTY ROBERT E

Methods for creating spatially controlled composite materials

BOEING CO

Thermally activated variable stiffness composites for aircraft seals