Spray sensing system
First Claim
1. A sensing system for indicating the cessation of flow of an electrically conductive fluid of the like issuing from a discharge passage means, comprising:
- an electrically conductive probe having a sensing portion positioned near said passage means in the path of the fluid spray issuing therefrom,probe mounting means for supporting said probe, said probe mounting means and said probe being electrically isolated from said passage means,enclosure means enclosing said probe mounting means sufficiently to preclude contact of said probe mounting means by fluid issuing from said passage means, said probe means extending outwardly of said enclosure means,electrically conductive means in electrical communication with fluid in said passage means,signal means for indicating the cessation of fluid issuing from said passage means,electrical power supply means,electrical switching means connectable to said probe, said electrically conductive means, said signal means and said power means, said switching means being responsive to the making and breaking of electrical communication between said probe and said electrical conductive means caused respectively by the flow and cessation of flow of fluid from said passage means into contact with said probe sensing portion to operate said signal means between a normal condition when fluid is issuing from said passage means and an alarm condition when fluid has substantially ceased to issue from said passage means.
0 Assignments
0 Petitions
Accused Products
Abstract
A system for sensing the flow of an electrically conductive liquid through a nozzle. The nozzle represents one side of an electrical sensing circuit. A conductive probe is positioned near the nozzle, so that it extends into the spray. The probe represents the second side of the electrical sensing circuit. The probe is mounted on a clamp positioned on the inside of a protective enclosure. The probe is the bottom of the enclosure. When liquid sprays from the nozzle, the sensing circuit is closed. A switch responds to this by illuminating an indicator lamp. If the liquid flow ceases, the signal circuit is opened, and the switch signals this occurrence. The switch is a transistor that operates a light emitting diode.
-
Citations
11 Claims
-
1. A sensing system for indicating the cessation of flow of an electrically conductive fluid of the like issuing from a discharge passage means, comprising:
-
an electrically conductive probe having a sensing portion positioned near said passage means in the path of the fluid spray issuing therefrom, probe mounting means for supporting said probe, said probe mounting means and said probe being electrically isolated from said passage means, enclosure means enclosing said probe mounting means sufficiently to preclude contact of said probe mounting means by fluid issuing from said passage means, said probe means extending outwardly of said enclosure means, electrically conductive means in electrical communication with fluid in said passage means, signal means for indicating the cessation of fluid issuing from said passage means, electrical power supply means, electrical switching means connectable to said probe, said electrically conductive means, said signal means and said power means, said switching means being responsive to the making and breaking of electrical communication between said probe and said electrical conductive means caused respectively by the flow and cessation of flow of fluid from said passage means into contact with said probe sensing portion to operate said signal means between a normal condition when fluid is issuing from said passage means and an alarm condition when fluid has substantially ceased to issue from said passage means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification