Transfer device docking indicator

A transfer device comprising:

• a housing comprising a first docking cup and a second docking cup, each of the first docking cup and the second docking cup configured to receive and lockably engage a receiver of a transfer system;
• a security mechanism positioned inside the housing, the security mechanism comprising:
• a first security lever;
• a first biasing member engaged with the first security lever and configured to bias the first security lever towards engagement with the receiver;
• a second security lever;
• and
• a second biasing member engaged with the second security lever and configured to bias the second security lever towards engagement with the receiver;
• and
• an indicator coupled to the security mechanism and at least partially visible from outside the housing, the indicator configured to indicate to a user of the transfer system whether the receiver is lockably engaged with one of the first docking cup and the second docking cup.

A method of using a transfer system, the method comprising:

• lockably engaging a transfer device of the transfer system with a receiver of the transfer system, the transfer device comprising:
• a housing comprising a first docking cup and a second docking cup, lockably engaging the transfer device comprising lockably engaging the receiver with one of the first docking cup and the second docking cup;
• a security mechanism positioned inside the housing, the security mechanism comprising:
• a first security lever;
• a first biasing member engaged with the first security lever and configured to bias the first security lever towards engagement with the receiver;
• a second security lever;
• and
• a second biasing member engaged with the second security lever and configured to bias the second security lever towards engagement with the receiver;
• and
• an indicator coupled to the security mechanism and at least partially visible from outside the housing;
• and
• positioning the indicator in a first indicating position with respect to the housing, the first indicating position indicating to a user of the transfer system whether the receiver is lockably engaged with the one of the first docking cup and the second docking cup.