Patent ID: 6123508
Filing Date: 2000-09-26
Classification: F04B,G01F,H01H,Y10S

Abstract:
Apparatus for indicating when the level of liquid in a container has risen to a predetermined height, comprising:a housing assembly which can be fixed to said container, said housing assembly including a housing and a guide;an activatable switch mounted on said housing assembly, with said switch activatable when the liquid reaches said predetermined height;a float assembly that is vertically moveable with respect to said housing assembly along said guide, said float assembly carrying a switch activator that activates said switch when said assembly has moved up to a predetermined height;said float assembly includes a float that is buoyant in said fluid, and a vertically extending shaft that extends upwardly and through said float and with the bottom of the shaft being closed and that is slideably guided by said guide, said shaft being substantially fixed to said float.