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US 2018/0216860 A1Published application
Refrigerant recovery system
AssigneeFieldpiece Instruments, Inc.
InventorsTinggui Hong, Jason Corbett Gilley, David M. Hines
Life of this patent
Estimating the term…
Abstract
A refrigerant recovery system includes a direct current (DC) motor and digital display and controls enabling an automatic self-test mode to insure proper operation prior to starting to service an HVAC system and a maintenance assist mode to diagnose and suggest maintenance for optimum performance of the refrigerant recovery system.
Claims3
A refrigerant recovery system comprising:
- a direct current (DC) motor;
- and
- a refrigerant pump operably connected to the DC motor, the refrigerant pump having at least an input port and an output port wherein the input port engages an input connector, a mesh filter and an O-ring such that the mesh connector and the O-ring are secured between the input port and the input connector by a lock nut.
Dependencies are inferred from the claim text.