Vacuum bottle with air pump to pressurized bottle to effect dispensing

Claim 2

A manually operated pump dispenser for a container comprising: (a) a pump housing having an interior space, (b) displaceable diaphragm means in said housing for pumping air into said container, said diaphragm means having a sealable opening therethrough to permit air to enter said interior space and including (i) a circular disk having an aperture therethrough and a downwardly projecting rim at its outer circumference, and (ii) a flexible diaphragm having an inner portion and an outer periphery terminating radially outwardly of said inner portion, the inner portion of said diaphragm being in contact with said disk, the outer periphery thereof being attached to said housing adjacent the upper end of said housing, (c) at least one opening through the bottom of said housing for communicating said enclosed space with the interior of said container, (d) said diaphragm means opening being sealed during the downward displacement of said diaphragm means to force air in said interior space into the container interior via said bottom opening, and left unsealed during upward displacement of the diaphragm means to draw air into said interior space, and (e) means for permitting fluid to pass out of said container responsive to the air pressure created in said container from the downward displacement of said diaphragm means.

Claim 3

The device according to claim 1 wherein said permitting means includes a fluid tube extending into said container to a point near the bottom of the container.

Claim 4

The combination according to claim 1 wherein said diaphragm includes an outer portion which doubles back upon itself and terminates in an edge secured in position against said housing.

Claim 5

In combination an insulated container having a pouring opening through which liquids pass into and out of the interior of the container and a pump dispenser for said container adapted to removably engage the container and seal the pouring opening to prevent heat loss and spilling, said dispenser including: (a) a pump housing defining an interior space and having a first opening therein and at least one opening through the bottom of said housing, the latter opening for communicating said interior space with the interior of said container, (b) means positioned in said housing for pumping air into said container including: (i) a rigid force applying member positioned directly beneath said first opening and accessible therethrough for direct user actuation, (ii) a flexible diaphragm having an inner portion and an outer periphery terminating radially outwardly of said inner portion, the inner portion of said diaphragm being in contact with said force applying member, the outer periphery thereof being attached to said housing adjacent the upper end of said housing, (c) at least one opening through the bottom of said housing for communicating said enclosed space with the interior of said container, (d) said diaphragm means opening being sealed during downward displacement of said diaphragm means to force air in said interior space into the container interior via said bottom opening, and left unsealed during upward displacement of the diaphragm means to draw air into said interior space, and (e) means for permitting fluid to pass out of the container in response to air pressure created therein as the result of the downward displacement of said diaphragm means.

Claim 6

In combination an insulated container having a pouring opening through which liquids pass into and out of the interior of the container and a pump dispenser for said container adapted to removably engage the container and seal the pouring opening to prevent heat loss and spilling, said dispenser including: (a) a pump housing defining an interior space and having a first opening therein and at least one opening through the bottom of said housing, the latter opening for communicating said interior space with the interior of said container, (b) means positioned in said housing for pumping air into said container including: (i) a rigid force applying member positioned directly beneath said first opening and accessible therethrough for direct user actuation, (ii) a flexible diaphragm having an inner portion and an outer periphery terminating radially outwardly of said inner portion, the inner portion of said diaphragm being in contact with said force applying member, the outer periphery thereof being attached to said housing adjacent the upper end of said housing, (c) at least one opening through the bottom of said housing for communicating said enclosed space with the interior of said container, (d) said diaphragm means opening being sealed during downward displacement of said diaphragm means to force air in said interior space into the container interior via said bottom opening, and left unsealed during upward displacement of the diaphragm means to draw air into said interior space, and (e) means for permitting fluid to pass out of the container in response to air pressure created therein as the result of the downward displacement of said diaphragm means.

Claim 7

The device according to claim 4 further including means for restricting liquid in the container from entering said pumping means, said restricting means including a gasket on said pump dispenser normally in a position to restrict liquid from entering said pump means but flexible to a position permitting air to pass from the pumping means into said container when said pump means is operated.

Claim 8

The device according to claim 4 wherein said permitting means includes a fluid tube extending into said container to a point near the bottom of the container.

Claim 9

The dispenser according to claim 4 wherein said pump housing includes means for removably engaging said container whereby the dispenser may be easily attached to and removed therefrom.

Claim 10

The dispenser according to claim 7 wherein the pump is positioned over the pouring opening of said container.

Claim 11

The device according to claim 4 wherein said pump means includes a spring for moving said force applying member upwardly in the absence of manual pressure thereon.

Claim 12

The combination according to claim 4 wherein said diaphragm includes an outer portion which doubles back upon itself and terminates in an edge secured in position against said housing.

Claim 13

The combination according to claim 4 wherein said diaphragm includes: (a) an inner portion extending substantially across said first opening in contact with said force applying member, (b) an outer portion including a first part, and a second part which doubles back upon said first part and terminates in an edge secured in position against said housing, said diaphragm being displaceable in said housing by the movement of the first part of the outer portion relative to the second part.

Claim 14

The combination of claim 4 wherein said insulated container comprises a vacuum insulated filler.

Claim 15

The combination of claim 12 wherein said rigid force applying member is a circular disk having an aperture therethrough.

Claim 16

The dispenser according to claim 13 further including a plurality of vertically disposed ribs on said housing and a plurality of mating grooves on said disk whereby during vertical displacement of said disk relative to said housing, said disk is restrained from twisting or tilting.

Claim 17

A manually operated pump dispenser for a container comprising: (a) a pump housing defining an interior space and having a first opening therein and at least one opening through the bottom of said housing, the latter opening for communicating said interior space with the interior of said container, (b) means positioned in said housing for pumping air into said container including: (i) a rigid force applying member positioned directly beneath said first opening and accessible therethrough for direct user actuation, (ii) a flexible diaphragm including an outer portion which doubles back on itself disposed directly beneath said force applying member and in contact therewith, the outer edge of said diaphragm secured in position against said housing, (c) means for permitting fluid to pass out of the container in response to the air pressure created in said container from the downward displacement of said pumping means.

Claim 18

A manually operated pump dispenser for a container comprising: (a) a pump housing defining an interior space and having a first opening therein and at least one opening through the bottom of said housing, the latter opening for communicating said interior space with the interior of said container, (b) means positioned in said housing for pumping air into said container including: (i) a rigid force applying member positioned directly beneath said first opening and accessible therethrough for direct user actuation, (ii) a flexible diaphragm including an outer portion which doubles back on itself disposed directly beneath said force applying member and in contact therewith, the outer edge of said diaphragm secured in position against said housing, (c) means for permitting fluid to pass out of the container in response to the air pressure created in said container from the downward displacement of said pumping means.

Claim 19

The pump dispenser of claim 15 wherein said diaphragm has an inner portion extending substantially across said first opening in contact with said force applying member.

Claim 20

The pump according to claim 16 wherein said housing includes a downwardly depending member which separates the first and second parts of said outer portion.