Liquid dispenser

Claim 2

A dispensing container for liquids, said container having a side wall and opposite ends, a liquid dispenser on one end of said container, a cylinder mounted in said container, a piston in the cylinder mounted for relative reciprocation between the piston and cylinder, said piston and cylinder defining a chamber for liquid to be dispensed, a first conduit connected with said cylinder and in communication with said chamber, check valve means in said first conduit to enable flow through said conduit to said chamber and prevent reverse flow therethrough, a second conduit connected at one end thereof with said cylinder in communication with said chamber and connected at its other end with said dispenser, a manually operated, normally closed valve means in said second conduit to normally prevent flow of liquid from said chamber and operable to enable flow from said chamber to said dispenser, a spring means engaged between said piston and cylinder to urge relative reciprocation between said piston and cylinder to pressurize liquid in said chamber and dispense said liquid through said dispenser when said valve in said second conduit is open, manually operable, rotatable operating means carried by said container externally thereof, a piston rod connected at one end thereof to said piston and extending axially from said cylinder and connected at its other end to said operating means, so that relative rotation between said container and said operating means causes relative reciprocation between said piston and cylinder to compress said spring and enlarge said chamber to draw liquid thereinto for subsequent dispensing of said liquid when said manually operated valve is opened and said spring expands to pressurize the liquid in said chamber.

Claim 3

A dispensing container as in claim 1, wherein the opposite ends of the container comprise top and bottom parts of the container, one of said parts comprising the rotatable operating means.

Claim 4

The container as in claim 2 wherein adjustment means is associated with the rotatable part to limit the rotation to dispense a measured quantity of the liquid.

Claim 5

The container as in claim 3 wherein the rotatable part is the top part, the adjustment means is a lever pivotally mounted on the top part, the lever engaging indicating means on the top part and stopping rotation of the top part at a preset point in accordance with the indicating means, and means operatively connected with the top part to return the top part to original position.

Claim 6

The container as in claim 3 wherein the rotatable part is the top part, indicia carried by the top part to indicate measured quantities, notches in the top part adjacent each indicia, the top part having an opening therein, a lever having a pin adjacent one end, the pin being received in the opening thus pivotally mounting the lever on the top part, the lever having a rib adjacent the other end, the rib engaging in the notches, the lever engaging a stop on the container to limit the rotation of the top part and thus limit the amount of liquid in the chamber to a pre-set quanity and resilient means operatively connected with the top part to return the top part to original position.

Claim 7

The container as in claim 3 wherein the container is provided with a cap and the top part is mounted on the cap and rotatable in relation tHereto, a slotted tube mounted on the cap, a spring within the slotted tube, the top part having a pin extending therefrom and through the slot into the tube, the adjustment means comprising a lever pivotally mounted on the top part, indicia means on the top part, notches in the top part adjacent each indicia, the lever having a rib thereon engaging in the notches, the lever being set in the desired notch and the top part being rotated, the lever engages the slotted tube to stop the rotation of the top part thus effecting movement of one of the members to draw into the chamber the desired quantity of liquid, upon release of the top part the spring will return the top part to original position and the desired quantity dispensed through the discharge means.

Claim 8

The container as in claim 2 wherein the container is a bottle having an elongated neck and a mouth, a cap covering the mouth, the cylinder and piston being within the neck, the operating means comprising a stationary cam mounted on the underside of the cap and a rotatable cam having a face complementary to the stationary cam, the piston rod extending upwardly through the cap and connected with the top part, said top part being rotatable, the cylinder being within the rotatable cam and reciprocated by the rotation of the cam, the piston rod extending through the rotating cam and into the cylinder, the spring means comprising a coil spring within the cylinder, one end of the spring bearing on the cylinder and the other end bearing on the piston, said first conduit connected at one end to the cylinder and the other end being on the bottom of the container, the top part having indicia thereon indicating predetermined quantities of liquid, notches on the top part adjacent each indicia, a lever pivotally mounted on the top part, the lever being mounted at one end thereof and having a rib at the other end, the rib engaging in one of the notches to set the quantity, a tube mounted on the cap and having a slot therein, a coil spring within the tube, the top part having a pin extending downwardly therefrom and into the slot, the pin being in engagement with the coil spring of the tube at one end thereof, said cams reciprocating the cylinder upon rotation of the top part to draw liquid into the cylinder, said lever engaging one end of the tube to stop rotation of the top part when the predetermined quantity is drawn into the cylinder, and said top part, when released, returned to its original position by the coil spring in the tube, and upon operation of the valve in the second conduit, such predetermined quantity will be dispensed from the cylinder.

Claim 9

The container as set forth in claim 2 wherein the bottom part is the operating means.

Claim 10

The container as set forth in claim 8 wherein the piston is supported in a non-reciprocatory position by the bottom part.

Claim 11

The container as in claim 9 wherein the piston has a cam member associated therewith, the cam being rotated by the bottom part.

Claim 12

The container as in claim 9 wherein the top part has a guide means extending downwardly therefrom into the container, the cylinder member having a cooperating guide means thereon, the guide means allowing reciprocation of the cylinder but preventing rotation thereof.

Claim 13

The container as in claim 9 wherein the top part supports the cylinder, the cylinder being reciprocated relative thereto.

Claim 14

The container as in claim 12 wherein the cylinder has a cam member associated therewith, the cam being reciprocated with the cylinder.

Claim 15

The container as in claim 2, wherein the operating means comprises cooperative cam members associated with the piston and cylinder.

Claim 16

The container as in claim 14 wherein the cam member associated with the piston member is rotated by the bottom part.

Claim 17

The container as in claim 14 wherein the cam member associated with the cylinder is reciprocated by the rotation of the cam member associated with the piston.

Claim 18

The container as in claim 16 wherein the cylinder is reciprocated anD moved away from the piston by the rotation of the cam member associated with the piston thus enlarging the chamber and drawing in the fluid into the chamber from the container.

Claim 19

The container as in claim 1 wherein the first conduit has a free end in the bottom of the container.

Claim 20

The container as in claim 18 wherein the check valve means has means thereon allowing slow by-pass of the liquid from the chamber to the container when any liquid remains in the chamber after a dispensing operation.

Claim 21

The container as in claim 19 wherein the check valve comprises a poppet valve having a bevel face and reciprocable in a conically shaped valve housing, the bevel face being substantially complementary to the conical shape but allowing by-pass of any liquid left in the chamber to return to the container when the container is not in use.

Claim 22

The container as in claim 19 wherein the check valve comprises a ball reciprocable in a conically shaped valve housing, the ball having minute depressions on the surface thereof, the depressions allowing by-pass of any liquid left in the chamber to return to the container when the container is not in use.

Claim 23

The container as in claim 2 wherein valve operating means for the manually operated valve means extends above the top part, the top part having a locking means thereon, the locking means engaging the valve operating means and preventing operation thereof.

Claim 24

The container as in claim 2 wherein the piston rod is mounted on the bottom part and rotated thereby, operating means including a first cam mounted on the bottom part and rotated therewith, the cylinder is carried by the top part, a second cam associated with the cylinder and operatively interengaged with the first cam, the second cam being reciprocated by the rotation of the first cam and reciprocation of the second cam reciprocating the cylinder, the cylinder having an extension thereon surrounding the piston rod and being reciprocated with the cylinder relative to the rod, the spring means comprises a coil spring surrounding the piston rod with one end bearing against the piston and the other end bearing against the extension of the cylinder, the spring being compressed upon reciprocation of the cylinder said first conduit having a free end resting on the bottom of the container, the reciprocation of the cylinder drawing the liquid within the container into the chamber where it is placed under the pressure of the compressed spring, and said check valve in the conduit holding the liquid in the chamber until operation of the manually operated valve means to discharge the liquid from the chamber under the pressure of the spring.

Claim 25

The container as in claim 2 wherein the container has a cover thereon, the piston and cylinder being mounted on the underside of the cover, the top part being mounted on the outside of the cover, the piston rod extending through the cover and connected to the top part, rotation of the top part rotating the piston, and operative means connected with the piston and the cylinder and being rotated by the rotation of the piston and reciprocating the cylinder relative to the piston.

Claim 26

The container as in claim 24 wherein the operative means comprises a first cam stationarily mounted on the under side of the cover, and a second cam rotated by the piston rod and the top part, the rotation of the second cam causing reciprocation of the cylinder through the reaction of the two cams relative to one another.

Claim 27

The container as in claim 24 wherein the piston rod is of a square shape with the free end seated in a socket in the top part, the cover having a round opening through which the rod extends, the operative means comprises a first cam attached to the under side of the cover, the first cam having a round opening extending therethrough and coinciding with the opening in the cover, the cylinder having an extension thereon extending into the first cam and being rotated relative thereto by the piston rod, a second cam surrounding the cYlinder and rotated by the piston rod with the extension, the complementary surfaces of the cams causing reciprocation of the second cam relative to the first cam, the reciprocation of the second cam causing reciprocation of the cylinder relative to the piston and drawing liquid into the chamber, and said discharge means being on the top part to discharge the liquid in the chamber.

Claim 28

The container as in claim 26 wherein the spring means comprises a coil spring within the cylinder, the cylinder having a closed base at the extension, the spring having one end bearing upon the base and the other end bearing upon the piston, the spring being compressed by the reciprocation of the cylinder relative to the piston.

Claim 29

The container as in claim 2 wherein the container has an open mouth, a cover sealing the mouth, the top part being mounted on the outside of the cover, the top part being rotated relative to the container, the cylinder and piston being mounted on the under side of the cover, the cylinder being reciprocated by the rotation of the top part, the operating means including a first cam fixedly mounted on the underside of the cover, and a second cam rotated by the rotation of the top part, the two cams having complementary engaging surfaces, the piston rod having a square cross section and extending through the cover, the top part having a socket therein receiving the free end of the rod, the cover having a round opening therein, the first cam having a round opening therethrough and coinciding with the opening in the cover, the rod extending through the openings and being rotatable therein, the cylinder having a base and an extension extending upwardly from the base, the extension having a square opening therethrough, the rod extending through the square opening and rotating the cylinder upon rotation of the rod, the second cam surrounding the cylinder and rotated therewith, the rotation of the second cam and cylinder reciprocating the cylinder relative to the piston, the spring means comprising a coil spring mounted within the cylinder, one end of the spring bearing against the base and the other end bearing against the piston and being compressed by the reciprocation of the cylinder, said first conduit having one end connected to one end of the cylinder and a free end resting on the bottom of the container, and said check valve being in said one end, the liquid being drawn into the chamber by the reciprocation of the cylinder and placed under pressure therein by the compression of the spring.

Claim 30

The container as in claim 1 wherein the container comprises a side wall, a top wall and a rotatable bottom wall, the cylinder being fixedly mounted on the side wall, the cylinder having a closed end and an apertured wall at the other end, the piston being slidably mounted within the cylinder, the piston rod extending through the apertured wall of the cylinder, the rod having a free end, the bottom wall having a post extending upwardly therefrom, the free end of the rod being connected to the post to reciprocate the rod and piston upon rotation of the bottom wall, the spring means comprising a coil spring surrounding the rod within the cylinder, one end of the spring bearing against the piston and the other end bearing against the apertured wall, the spring being compressed upon reciprocation of the piston in the cylinder to enlarge the chamber, the spring effecting pressurization of the liquid in the chamber when compressed, said first conduit having one end connected to the cylinder adjacent the closed end and the other end resting on the bottom wall of the container, the reciprocation of the piston drawing the liquid into the chamber, said check valve allowing free flow of the liquid into the cylinder and allowing very restricted flow back into the container, and said second conduit having one end connected to the cylinder adjacent the closed end and the other end connected to the discharge means.

Claim 31

A dispensing container for liquids, said container having a sidE wall and end closure means on opposite ends thereof, one of said end closure means being rotatable relative to the side wall, a cylinder carried by the side wall within the container, a piston slidably mounted within the cylinder and defining with the cylinder a chamber for liquid to be dispensed, a piston rod connected at one end thereof to said piston and extending axially from said cylinder and connected at its other end to said rotatable end closure means so that rotation of said rotatable end closure means causes relative reciprocation between said piston and cylinder in a direction to enlarge said chamber, resilient means operatively connected with said piston and cylinder to cause relative reciprocation therebetween in a direction to reduce the size of said chamber and pressurize liquid therein, a discharge means on one end of said container, conduit means connected between said chamber and said discharge means, and valve means in said conduit means to control flow of liquid therethrough and operable to allow discharge of said liquid through said dispenser means by the pressure of the resilient means.

Claim 32

A dispensing container for liquids, said container having a sidE wall and end closure means on opposite ends thereof, one of said end closure means being rotatable relative to the side wall, a cylinder carried by the side wall within the container, a piston slidably mounted within the cylinder and defining with the cylinder a chamber for liquid to be dispensed, a piston rod connected at one end thereof to said piston and extending axially from said cylinder and connected at its other end to said rotatable end closure means so that rotation of said rotatable end closure means causes relative reciprocation between said piston and cylinder in a direction to enlarge said chamber, resilient means operatively connected with said piston and cylinder to cause relative reciprocation therebetween in a direction to reduce the size of said chamber and pressurize liquid therein, a discharge means on one end of said container, conduit means connected between said chamber and said discharge means, and valve means in said conduit means to control flow of liquid therethrough and operable to allow discharge of said liquid through said dispenser means by the pressure of the resilient means.

Claim 33

The container as in claim 30 wherein the cylinder has one closed end and another end enclosing the piston rod, the resilient means being a coil spring surrounding the piston rod and having one end bearing against the piston and a second end bearing against the enclosing end of the cylinder and being compressed by the reciprocation of the piston.

Claim 34

The container as in claim 31 wherein a first conduit is connected to the cylinder adjacent a closed end thereof, the first conduit having a free end resting on the bottom of the container, the first conduit having a check valve therein at the connection with the cylinder, and said conduit means is connected to the cylinder adjacent the closed end.

Claim 35

A dispensing container for liquid, said container having a side wall and opposite ends, a liquid dispenser on one end of the container, a cylinder mounted within the container for reciprocating movement in the container, a piston in the cylinder and defining with the cylinder a chamber for liquid to be dispensed, spring means engaged between the piston and cylinder urging the cylinder in a direction relative to the piston to reduce the size of the chamber, a piston rod connected at one end to the piston and extending axially from the cylinder at its other end, a manually operated rotatable actuating means carried by the container externally thereof, said other end of said piston rod connected to said actuating means to secure said piston against reciprocation, interengaged cam means operatively connected with said rotatable actuating means and said cylinder to cause reciprocation of said cylinder in a direction to compress said spring and enlarge said chamber when said actuating means is rotated, first conduit means connected with said cylinder in communication with said chamber, check valve means in said first conduit means to enable flow through said conduit means into said chamber when said actuating means is rotated to enlarge said chamber and to prevent reverse flow therethrough, second conduit means connected at one end thereof with said cylinder in communication with said chamber and connected at its other end with said dispenser, and normally closed manually operated valve means in said second conduit means to preclude flow of liquid from said chamber to said dispenser when said valve is closed and operable to allow flow from said chamber to said dispenser when said valve is open and said spring expands to pressurize liquid in said chamber.

Claim 36

A dispensing container for liquid, said container having a side wall and opposite ends, a liquid dispenser on one end of the container, a cylinder mounted within the container for reciprocating movement in the container, a piston in the cylinder and defining with the cylinder a chamber for liquid to be dispensed, spring means engaged between the piston and cylinder urging the cylinder in a direction relative to the piston to reduce the size of the chamber, a piston rod connected at one end to the piston and extending axially from the cylinder at its other end, a manually operated rotatable actuating means carried by the container externally thereof, said other end of said piston rod connected to said actuating means to secure said piston against reciprocation, interengaged cam means operatively connected with said rotatable actuating means and said cylinder to cause reciprocation of said cylinder in a direction to compress said spring and enlarge said chamber when said actuating means is rotated, first conduit means connected with said cylinder in communication with said chamber, check valve means in said first conduit means to enable flow through said conduit means into said chamber when said actuating means is rotated to enlarge said chamber and to prevent reverse flow therethrough, second conduit means connected at one end thereof with said cylinder in communication with said chamber and connected at its other end with said dispenser, and normally closed manually operated valve means in said second conduit means to preclude flow of liquid from said chamber to said dispenser when said valve is closed and operable to allow flow from said chamber to said dispenser when said valve is open and said spring expands to pressurize liquid in said chamber.