Liquid dispenser meter
AssigneeA.G. (Patents) Limited
InventorsRonald S. Griffiths, John E. Searles
Life of this patent
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Abstract
A meter for a liquid dispenser of the type having an axially movable plunger. The meter includes a housing detachably mountable on the dispenser. The housing has a bore in which is engaged a sleeve on the dispenser. An annular space is provided, coaxially of the bore. In this space is provided a cylindrical actuating member, the base of which is formed as a striker. Upward sliding movement of member actuates hollow plunger so that liquid is dispensed through an aperture. Upward movement of the member also causes an operating member secured to a counter to turn, thereby advancing the counter by one digit. A spring loaded interlocking member is adapted to prevent upward movement of the actuating member if the meter is removed from the dispenser.
Claims19
A dispenser for dispensing a measured quantity of liquid from a supply thereof, comprising:
- (a) dispensing means, actuation of which causes a measured quantity of liquid to be dispensed;
- (b) actuating means for selectively actuating the dispensing means;
- (c) metering means for recording the number of measured quantities of liquid dispensed, the metering means being operatively connected to the actuating means;
- and
- (d) a housing on which the actuating means and the metering means are securely mounted;
- wherein the housing, with its associated actuating and metering means, is readily detachable from the dispensing means.
Apparatus for use with liquid dispensing means having a plunger actuable to dispense a measured quantity of liquid from a supply thereof, said apparatus comprising:
- (a) a housing adapted to be detachably mounted on the dispensing means;
- (b) a bore within the housing adapted to receive the plunger when the housing is mounted on the dispensing means;
- (c) a counter mounted on the housing;
- (d) an actuating member mounted on the housing and selectively movable to actuate the plunger when the housing is mounted on the dispensing means;
- and
- (e) means arranged to operate the counter upon movement of the actuating member to actuate the plunger.
Apparatus for use with liquid dispensing means having a plunger actuable to dispense a measured quantity of liquid from a supply thereof said apparatus comprising:
- (a) a housing;
- (b) a bore within said housing adapted to receive said plunger;
- (c) an annular space in said housing, said annular space being coaxial with said bore;
- (d) a plunger actuating member having a portion adapted to engage the plunger and a tubular portion slidably disposed within said annular space and axially movable therein;
- and
- (e) a counter mounted on said housing, said actuating member tubular portion being arranged to operate the counter upon movement of the actuating member to actuate the plunger.
A dispenser for dispensing measured quantities of liquid from a supply thereof, comprising:
- (a) dispensing means actuation of which causes a measured quantity of liquid to be dispensed;
- (b) a striker selectively movable to actuate the dispensing means;
- and
- (c) metering means for recording the number of measured quantities of liquid dispensed;
- wherein the striker is detachable from the dispensing means and actuation of the dispensing means without operation of the metering means, for cleaning purposes, is only possible on detachment of the striker.
Dependencies are inferred from the claim text.