Dispensing jar for viscous food product
View Patent ↗A jar or bottle container for dispensing food items or other products that may have a liquid component and a solid component has a platform that is supported on a threaded post on the interior of the jar. A base seated at an open bottom of the jar body is turned to rotate the post and elevate the platform to push the food item upward. The platform has a ring seal and radial lip or tooth structure that rides in vertical channels formed in the inner wall of the jar body. A weight or ballast may be present in the base.
1. Container for a food product that is a mixture of solid and liquid components, the container comprising
a jar body having a generally cylindrical inside wall of a predetermined inside diameter, a mouth at a top thereof, and a bottom end, the jar body having a plurality of vertical channel recesses formed on said inside wall;
said bottom end having a bottom opening that is substantially the same diameter as said cylindrical inside wall;
a rotatable base fitted onto the bottom opening at said bottom end of the jar body and retained therein, and adapted to be rotated by hand about a center axis of the jar body, wherein said rotatable base is contained within the cylindrical body at a bottom end thereof;
a threaded post affixed to said base and extending along the center axis of the jar body; and
a platform member which is slidable along the inside wall of said jar body to urge said food product towards the mouth of the jar body, the platform member including
a generally rigid disk having a central female threaded opening engaging said threaded post;
an annular peripheral recess;
a flexible seal ring in said peripheral recess and being slidably biased against the inside cylindrical wall of said jar body,
a plurality of radially extending lips which project into said channel recesses, respectively; and
respective flexible seal members positioned on said radial lips and forming a slidable seal against the associated channel members.
2. The container according to claim 1 wherein said jar body cylindrical wall has a pair of said vertical channel recesses positioned diametrically opposite one another and said platform has a pair of said lips positioned diametrically opposite one another on said disk.
3. A container according to claim 1 wherein said jar member has four of said vertical channel recesses at ninety degree intervals and said platform has four of said lips positioned at ninety degree intervals.
4. A container according to claim 1 wherein rotatable base includes a ballast member providing weight to said base.
5. A container according to claim 1 wherein said jar body includes an internal annular ledge formed at the bottom end thereof for retaining said rotatable base therein.
6. A container for a food product that is a mixture of solid and liquid components, the container comprising
a jar body having a generally cylindrical inside wall of a predetermined inside diameter, a mouth at a top thereof, and a bottom end, the jar body having a plurality of vertical channel recesses formed on said inside wall;
said bottom end having a bottom opening that is substantially the same diameter as said cylindrical inside wall;
a rotatable base fitted onto the bottom opening at said bottom end of the jar body and retained therein, and adapted to be rotated by hand about a center axis of the jar body, wherein said rotatable base is contained within the cylindrical body at a bottom end thereof;
a threaded post affixed to said base and extending along the center axis of the jar body; and
a platform member which is slidable along the inside wall of said jar body to urge said food product towards the mouth of the jar body, the platform member including
a generally rigid disk having a central female threaded opening engaging said threaded post;
an annular peripheral recess;
a flexible seal ring in said peripheral recess and being slidably biased against the inside cylindrical wall of said jar body,
a plurality of radially extending lips which project into said channel recesses, respectively; and
respective flexible seal members positioned on said radial lips and forming a slidable seal against the associated channel members;
wherein said rotatable base has a recessed handle grip formed at a bottom side thereof.
7. A container according to claim 1 wherein said jar body has a shoulder leading to a neck of smaller diameter than said cylindrical wall and on which said mouth is formed, with a threaded rim on said neck, and further comprising a screw-on lid threaded to mate with said threaded rim.