.~ Responsive to accumulation of pumped liquid in receiver {4}
38
.~.~ By liquid pressure sensor
DEFINITION
Classification: 417/38
(under subclass 36) Subject matter in which the sensing means comprises a device which responds to liquid pressure changes and is either in fluid communication with or mounted within the receptacle in a manner such that the liquid must either reach a predetermined level before it may pass to the pressure sensing device or exert sufficient pressure on the sensing device to cause actuation thereof.
(1) Note. A movable receptacle is not considered a pressure sensor under this definition, such devices being classified in subclass 37 above.
(2) Note. The liquid pressure may be transmitted to the sensing means via another liquid (e.g., mercury column).
