Macdonald, Dettwiler and Associates Corporation

Maxar Technologies Ulc

Rangaswamy Ravindran

Ming Kit Chan

John Douglas Lymer

Sean Andrew Dowling

Andrew Allen

Kerry Spring

John Lymer

The present invention provides a low profile, compact, scalable concept end-effector for use in robotic handling applications. The end-effector acts as the interface between multi-degree-of-freedom (DOF) manipulator and its base (if applicable), as well as the tools it handles and is compatible with both large manipulator systems such as the Shuttle Remote Manipulator System (SRMS) and Space Station Remote Manipulator System (SSRMS) and smaller dexterous manipulators such as the Orbital Express Dexterous Manipulator System. An active/controlled component is attached to the roll joint(s) at one or both end(s) of the manipulator, with an entirely passive component attached to the structure/tools that the manipulator interfaces with. Interface engagement and mate operations are performed by way of the manipulator roll joint. Once mated, shear pins are extended to lock the mated assembly in place and achieve a high stiffness, zero free play mated interface.

Scalable common interface plate system (SCIPS)

Herein is disclosed a propellant transfer system and method for refueling on-orbit spacecraft. The system and method are configured to allow for resupply of spacecraft configured to be fueled by either a bipropellant (oxidizer and fuel) or a monopropellant (typically hydrazine). The system and method are particularly suited for resupply of satellites not originally prepared for refueling as well but the system may also be used for as satellites specifically designed for refueling.

Propellant transfer system and method for resupply of fluid propellant to on-orbit spacecraft

Propellant transfer system and method for resupply of propellant to on-orbit spacecraft

Growing community of inventors

Caledon, Canada

Rangaswamy Ravindran