Recirculating paint system having an improved push to connect fluid coupling assembly
AssigneeIllinois Tool Works Inc.
InventorEarl R. Holt
Life of this patent
Estimating the term…
Abstract
A recirculating paint supply system having a supply conduit, a return conduit and a push to connect fluid coupling assembly. The supply conduit supplies a liquid coating composition received from a supply to a spray nozzle. The return conduit returns the excess liquid coating composition supplied to the spray nozzle to the supply. The push to connect fluid coupling assembly receives an end portion of at least one of the supply conduit and the return conduit. The push to connect fluid coupling assembly includes a connector housing defining a bore having a first annular groove to retain an annular lock ring positioned within the groove. The lock ring is operable to grip and engage the outer periphery of the conduit to securably retain the conduit in the connector housing.
Claims18
A fluid supply system having a conduit adapted to be coupled in fluid communication between a fluid source and a spray gun for supplying fluid from the fluid source to the spray gun, said system comprising:
- a quick disconnect fluid coupling assembly adapted to be attached to the spray gun, said quick disconnect fluid coupling assembly including a quick disconnect stem and a quick disconnect connection operable to receive said quick disconnect stem;
- a swivel fluid connector operable to allow the spray gun to rotate relative to the conduit;
- a filter fluid connector including a filter element operable to filter the fluid passing through the conduit;
- and
- a restrictor fluid connector having an adjustable flow restrictor to adjust the flow of fluid through the conduit;
- wherein at least one of said quick disconnect fluid coupling assembly, said swivel fluid connector, said filter fluid connector and said restrictor fluid connector is formed substantially of a polymeric material to reduce the overall weight of the system.
A fluid supply system having a conduit adapted to be coupled in fluid communication between a fluid source and a spray gun for supplying fluid from the fluid source to the spray gun, said system comprising:
- a swivel fluid connector operable to allow the spray gun to rotate relative to the conduit;
- a filter fluid connector including a filter element operable to filter the fluid passing through the conduit;
- and
- a restrictor fluid connector having an adjustable flow restrictor to adjust the flow of fluid through the conduit;
- wherein at least one of said swivel fluid connector, said filter fluid connector and said restrictor fluid connector is formed substantially of a polymeric material to reduce the overall weight of the system.
A fluid supply system having a conduit adapted to be coupled in fluid communication between a fluid source and a spray gun for supplying fluid from the fluid source to the spray gun, said system comprising:
- a swivel fluid connector operable to allow the spray gun to rotate relative to the conduit;
- a filter fluid connector including a filter element operable to filter the fluid passing through the conduit;
- and
- a restrictor fluid connector having an adjustable flow restrictor to adjust the flow of fluid through the conduit;
- wherein each of said swivel fluid connector, said filter fluid connector and said restrictor fluid connector are formed substantially of a polymeric material to reduce the overall weight of the system.
Dependencies are inferred from the claim text.