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US 2006/0231579 A1Published application
Fluid dispenser
OwnerJeffrey Carterinventor
Life of this patent
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Abstract
A fluid dispensing device and system to dispense a fluid. The device includes a piston and a housing which may be coupled to a pressurized supply and to a discharge device. The fluid is dispensed at a pressure and a volume.
Claims21
A fluid dispensing system to dispense a fluid comprising:
- a housing including an inner surface that defines an interior, an input and an output;
- a piston, including a longitudinal axis, disposed within the interior of the housing, the piston including a first portion having a first dimension substantially perpendicular to the longitudinal axis and a second portion having a second dimension, substantially perpendicular to the longitudinal axis, the second dimension being different than the first dimension;
- a pressure source, to supply a supply pressure, coupled to the input of the housing;
- and
- a discharge device, coupled to the output of the housing.
2 more elements
A fluid dispenser to control the amount of fluid dispensed in a fluid dispensing system having a supply pressure comprising:
- a piston, including a longitudinal axis, the piston including a first portion having a first dimension substantially perpendicular to the longitudinal axis and a second portion having a second dimension substantially perpendicular to the longitudinal axis, the second dimension being less than the first dimension, and a channel disposed through the piston and along a longitudinal axis, the channel including an orifice having a dimension adapted to control the amount of fluid dispensed by the fluid dispensing system.
A method of manufacturing a fluid dispenser comprising the steps of:
- forming a piston, including a first portion having a first diameter, a second portion having a second diameter, and an orifice disposed in the first portion to provide fluid communication through the first portion and to the second portion;
- placing the piston in a preformed cavity;
- operatively coupling the preformed cavity to a pressure source having a fluid contained therein;
- and
- operatively coupling the preformed cavity to a discharge device, to discharge the fluid from the pressure source.
2 more elements
Dependencies are inferred from the claim text.