Back to results
US 5,067,591 AGranted
Combination air/manual economy grease dispenser
AssigneePentair, Inc.
InventorKenneth L. Fehlig
Life of this patent
Estimating the term…
Abstract
A combined pneumatic and manual grease dispensing system comprises a manually operated fluid pump that draws lubricant from a source and delivers the lubricant at a first fluid pressure, and a pneumatically operated lubricant dispensing gun that receives the lubricant supplied by the manual pump at the first pressure and receives a supply of compressed air from a compressed air source, and dispenses the lubricant received at a second pressure substantially increased from the first pressure at which the lubricant is supplied to the gun.
Claims18
A fluid dispensing system comprising:
- a self contained fluid pump adapted to be placed in fluid communication with a source of fluid, and adapted to both draw fluid from the source and deliver the fluid at a first pressure;
- a first fluid communication means adapted to receive the fluid delivered by the fluid pump and to conduct flow of the fluid;
- a second fluid communication means adapted to receive compressed air from a compressed air source and to conduct flow of the compressed air;
- a fluid dispensing means adapted to receive fluid at the first pressure from the first fluid communication means and compressed air from the second fluid communication means and to selectively dispense a predetermined quantity of the fluid at a second pressure;
- the fluid pump being a manually primed pump having a cylinder with a manually displaceable piston slidably received in the cylinder and a spring between the piston and cylinder, the piston being adapted to be manually displaced against the spring bias to a first position to draw fluid into the cylinder and prime the pump, and the piston being adapted to be displaced to a second position by the bias of the spring to force fluid drawn into the cylinder out of the cylinder and into the first fluid communication means.
2 more elements
A combined pneumatic/manual fluid dispensing system comprising:
- a self contained manual fluid pump adapted to both draw fluid from a fluid source and supply the fluid drawn at a first pressure;
- a pneumatic fluid dispenser adapted to receive fluid at the first pressure supplied by the manual fluid pump and to receive compressed air from a compressed air source, and adapted to dispense the fluid received at a second pressure, greater than the first pressure;
- the fluid pump being a manually primed pump having a cylinder with a manually displaceable piston slidably received in the cylinder and a spring between the piston and cylinder, the piston being adapted to be manually displaced against the spring bias to a first position to draw fluid into the cylinder and prime the pump, and the piston being adapted to be displaced to a second position by the bias of the spring to force fluid drawn into the cylinder out of the cylinder and into the first fluid communication means.
A combined manual and pneumatic fluid dispensing system comprising:
- a self contained fluid pump adapted to be placed in fluid communication with a source of fluid and to both draw fluid from the source and deliver the drawn fluid under pressure;
- a fluid dispensing gun adapted to receive fluid at a first pressure and to receive compressed air, and to selectively dispense a predetermined quantity of fluid received by the gun at a second pressure greater than the first pressure;
- a first fluid communication means communicating the fluid dispensing gun with the fluid pump;
- and
- a second fluid communication means communication the fluid dispensing gun with a source of compressed air;
- the fluid pump being a manually primed pump having a cylinder with a manually displaceable piston slidably received in the cylinder and a spring between the piston and cylinder, the piston being adapted to be manually displaced against the spring bias to a first position to draw fluid into the cylinder and prime the pump, and the piston being adapted to be displaced to a second position by the bias of the spring to force fluid drawn into the cylinder out of the cylinder and into the first fluid communication means.
3 more elements
Dependencies are inferred from the claim text.