Patent ID: 11874036
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 17:
18. An interchangeable evacuation hose system comprising:
an evacuation hose having a first end and a second end; and
a first connector that is coupled to the first end of the evacuation hose, wherein:
the first connector is sealably engageable with a second connector to permit refrigerant flow between the evacuation hose and a first refrigeration system, wherein the second connector is configured to be removably coupled to the first connector of the evacuation hose, and is further configured for mechanical attachment to a first attachment point for a first refrigeration system by way of a first system attachment portion,
the first connector is sealably engageable with a third connector to permit refrigerant flow between the evacuation hose and a second refrigeration system, wherein the third connector is configured to be removably coupled to the first connector of the evacuation hose, and is further configured for mechanical attachment to a second attachment point for a second refrigeration system by way of a second system attachment portion, and further wherein the first attachment portion is unable to be mechanically coupled to the second refrigeration system and the second attachment portion is unable to be mechanically coupled to the first refrigeration system,
the sealing engagement between the first connector and the second connector and the sealing engagement between the first connector and the third connector permit the evacuation hose to be used to evacuate refrigeration system contents from either the first refrigeration system or the second refrigeration system, and
at least one of the first connector, the second connector, or the third connector comprises a face defining an outlet of a fluid passageway, wherein the face and the outlet of the fluid passageway are substantially concentric and substantially coplanar, and wherein the face includes an indentation.