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US 4,391,389 AGranted
Adjustible actuator for plural dispensing devices
OwnerGiuseppe Catalfamoinventor
Life of this patent
Estimating the term…
Abstract
A device for dispensing two or more substances by pushing against the slidable bottoms of respective containers, includes an arrangement for varying the ratio at which the substances are being dispensed relative to one another.
Claims18
In a dispensing device, a combination comprising:
- first means for holding containers for at least two substances to be dispensed at a preselected ratio to one another, said containers each being of the type having one end provided with a stationary end wall and a second end provided with a movable end wall which is slidable toward said one end to effect expulsion of the substance of the container;
- second means for effecting the dispensing of said substances, said second means comprising a plurality of linearly movable pusher members, one for each container, each pusher member having a leading end portion adapted to press against and effect movement of one of said movable end walls and further comprising for each of said pusher members an element of rigid strip material having a hole through which the respective pusher member extends, an abutment portion engaging said element spaced from and at one axial side of the pusher member, a spring engaging the element adjacent said pusher member at the opposite axial side and urging the element towards said one side so that the element tilts on the pusher member and the edge portions bounding said hole entrainingly engage the pusher member;
- and
- third means connected with said second means and operative for changing said preselected ratio to a different ratio.
1 more element
Apparatus adapted to dispense in variable percentages at least two substances contained in at least two containers, said apparatus comprising:
- a plurality of containers each including a substance to be dispensed, each of said containers having at least one fixed wall and at least one movable wall;
- a base including a plurality of upstanding cradles for supporting said containers;
- means for advancing said movable walls of said containers to dispense the substances from each of said containers, said means including for each of containers:
- a movable push rod having at the leading end thereof a dispensing disc, each of said rods being adapted to be linearly advanced toward said at least one movable wall of the container,
- means for advancing each of said push rods, and
- means for arresting backward movement of each of said push rods,
- wherein said means for advancing said push rods comprises:
- at least one shaft for each rod, each of said shafts including at least one eccentric connected thereto, said at least one eccentric being so configured that their angular position relative to its geometrical axis of rotation is adjustable to permit independent advancement of each push rod so as to control the ratios of the substances being dispensed from each container,
- at least one member which cooperates with said eccentric and includes a hole therethrough through which the push rod extends,
- at least one spring pressing on one end against an element secured to the base and on the opposite end against said member in an opposite direction relative to the advancement of said push rods in order to hold the member in a constantly inclined and engaged position on one side by means of the hole and on the other side by means of the eccentric, and
- control means comprising a lever non-rotatably secured at one end to said shaft and adapted to exert continuous pressure on said shaft,
- wherein said means for arresting comprises a seeger ring about said push rod and inclined in an opposite direction relative to said advancement of said rod and at least one spring so as to always be engaged with the push rod to exert a continuous arresting action against backward movement of said push rod.
9 more elements
Dependencies are inferred from the claim text.