Fluid dispensing system
First Claim
Patent Images
1. An apparatus to dispense a fluid which comprises:
- a valve including a fluid inlet, a fluid outlet and a valve closure element controllably movable within the valve between a valve open position and a valve closed position, each said position being intermediate said fluid inlet and said fluid outlet for control of fluid flow through said valve;
an actuator for controllably providing electric power;
a mechanical linkage arranged to couple said actuator to said vale closure element to controllably move said valve closure element between said valve open position and said valve closed position in response to movement of said actuator, said mechanical linkage comprising a first cable coupled to each of and extending between said actuator and a first rotatable pulley, a second cable coupled to each of and extending between said valve closure element and a second rotatable pulley said first pulley being electively coupled to said second pulley by said clutch for mutual rotation caused by movement of said actuator;
said mechanical linkage further including an electrically actuated clutch arranged to selectively couple and uncouple said actuator to said valve closure element when said clutch is engaged and disengaged, respectively and to receive electric power from said actuator;
means coupled to said clutch element and responsive to for detecting and responding to a preselected fluid condition to interrupt electric power from said actuator to thereby disengage said clutch element and controllably uncouple said actuator from said valve closure element; and
means to independently urge said valve closure element to said valve closed position.
33 Assignments
0 Petitions
Accused Products
Abstract
A fluid dispensing nozzle including electrical and electro-mechanical flow controls and an electrical overflow protection mechanism.
-
Citations
20 Claims
-
1. An apparatus to dispense a fluid which comprises:
-
a valve including a fluid inlet, a fluid outlet and a valve closure element controllably movable within the valve between a valve open position and a valve closed position, each said position being intermediate said fluid inlet and said fluid outlet for control of fluid flow through said valve; an actuator for controllably providing electric power; a mechanical linkage arranged to couple said actuator to said vale closure element to controllably move said valve closure element between said valve open position and said valve closed position in response to movement of said actuator, said mechanical linkage comprising a first cable coupled to each of and extending between said actuator and a first rotatable pulley, a second cable coupled to each of and extending between said valve closure element and a second rotatable pulley said first pulley being electively coupled to said second pulley by said clutch for mutual rotation caused by movement of said actuator; said mechanical linkage further including an electrically actuated clutch arranged to selectively couple and uncouple said actuator to said valve closure element when said clutch is engaged and disengaged, respectively and to receive electric power from said actuator; means coupled to said clutch element and responsive to for detecting and responding to a preselected fluid condition to interrupt electric power from said actuator to thereby disengage said clutch element and controllably uncouple said actuator from said valve closure element; and means to independently urge said valve closure element to said valve closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An apparatus to dispense a fluid which comprises:
-
a valve including a fluid inlet, a fluid outlet and a valve closure element controllable movable within the valve between a valve open position and a valve closed position, each said position being intermediate said fluid inlet and said fluid outlet for control of fluid flow through said valve; an actuator; a mechanical linkage arranged to couple said actuator to said valve closure element to controllably move said valve closure element between said valve open position and said valve closed position in response to movement of said actuator; said mechanical linkage including a clutch element arranged to selectively couple and uncouple said actuator to said valve closure element when said clutch is engaged and disengaged, respectively said mechanical linkage comprising a first cable coupled to each of and extending between said actuator and a first rotatable pulley, a second cable coupled to each of and extending between sand valve closure element and a second rotatable pulley by said clutch for mutual rotation caused by second pulley by said clutch for mutual rotation caused by movement of said actuator; a fluid level detector coupled to said clutch element and responsive to a preselected fluid level to disengage said clutch element and thereby controllably uncouple said actuator from said valve closure element; and a mechanical element arranged to independently urge said valve closure element to said valve closed position. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification