Freezer door and draw off valve for a continuous freezer

Claim 2

In a freezer having a discharge end, a plastic freezer door having an integrally formed portion formed as one piece and enclosing said end, said portion having a vertically disposed cylindrical bore therein, a vertical slot formed in said door, a plunger vertically shiftable in said bore and having a slot formed therein, a pin in said plunger and located entirely within said plunger and extending across said plunger slot, a handle having a flat narrow portion located in said plunger slot and pivotally mounted therein, said handle having an inner end defining an open ended slot located within said bore and which embraces said pin, the other outer end of said handle being vertically shiftable to consequently cause said plunger to be moved in a vertical direction.

Claim 3

The freezer as set forth in claim 1 further characterized in that said plunger has a pair of O-ring seals therearound, said seals being spaced apart so that one is located on each side of said passage when said plunger is in said lower flow blocking position.

Claim 4

In a freezer having a discharge end, a plastic freezer door having an integrally formed forwardly projecting integral portion with a generally vertically disposed cylindrical bore therein, said door enclosing said discharge end, a vertical slot formed in said door and having an open side at the front side of said door, a plunger vertically shiftable in said bore, the upper end of said plunger having a slot formed therein, a pin in said plunger and located entirely within said plunger and extending across said plunger slot, a handle having a flat narrow portion located in said vertical slot of said door and pivotally mounted therein, said handle having an inner end and an open ended slot formed in said inner end and located within said bore, said open ended slot embracing said pin for relative sliding movement therewith, the other outer end of said handle being vertically shiftable so as to consequently cause said plunger to be moved in a vertical direction.

Claim 5

In a freezer having a discharge end, a plastic freezer door having an integrally formed forwardly projecting integral portion with a generally vertically disposed cylindrical bore therein, said door enclosing said discharge end, a vertical slot formed in said door and having an open side at the front side of said door, a plunger vertically shiftable in said bore, the upper end of said plunger having a slot formed therein, a pin in said plunger and located entirely within said plunger and extending across said plunger slot, a handle having a flat narrow portion located in said vertical slot of said door and pivotally mounted therein, said handle having an inner end and an open ended slot formed in said inner end and located within said bore, said open ended slot embracing said pin for relative sliding movement therewith, the other outer end of said handle being vertically shiftable so as to consequently cause said plunger to be moved in a vertical direction.

Claim 6

The freezer as set forth in claim 7 further characterized in that said plunger has a pair of O-ring seals therearound, said seals being spaced apart so that one is located on each side of the passage when said plunger is in a lower position.

Claim 7

In a freezer having a discharge end, a door formed of plastic and for enclosing said end, said door having a large bore at its rear end and an annular groove formed in said bore, means to removably secure said door to said end, a seal located in said groove and sealingly engaging said cover and freezer end, an integrally formed forwardly projecting portion, a generally vertically disposed cylindrical bore in said projecting portion, a passage in said door and placing said bore in communication with the interior of said freezer, a vertical slot formed in said door and having an open side at the front side of said door, a plunger formed of plastic and vertically shiftable in said bore between a lower position in which flow from said freezer is blocked and an upper position in which flow can occur from said freezer into said bore for discharge by gravity therefrom, said plunger having a pair of O-ring seals therearound, said seals being spaced apart so that one is located on each side of said passage when said plunger is in said lower flow blocking position, the upper end of said plunger having a slot formed therein, a pin in said plunger and extending across said slot, a handle having a flat narrow portion located in said vertical slot of said door and pivotally mounted therein, said handle having an inner end and an open ended slot formed in said inner end and located in said bore, said open ended slot embracing said pin for relative sliding movement therewith, the other outer end of said handle being vertically shiftable so as to consequently cause said plunger to be moved in a vertical direction between said positions.

Claim 8

In a freezer having a discharge end, a door formed of plastic and for enclosing said end, said door having a large bore at its rear end and an annular groove formed in said bore, means to removably secure said door to said end, a seal located in said groove and sealingly engaging said cover and freezer end, an integrally formed forwardly projecting portion, a generally vertically disposed cylindrical bore in said projecting portion, a passage in said door and placing said bore in communication with the interior of said freezer, a vertical slot formed in said door and having an open side at the front side of said door, a plunger formed of plastic and vertically shiftable in said bore between a lower position in which flow from said freezer is blocked and an upper position in which flow can occur from said freezer into said bore for discharge by gravity therefrom, said plunger having a pair of O-ring seals therearound, said seals being spaced apart so that one is located on each side of said passage when said plunger is in said lower flow blocking position, the upper end of said plunger having a slot formed therein, a pin in said plunger and extending across said slot, a handle having a flat narrow portion located in said vertical slot of said door and pivotally mounted therein, said handle having an inner end and an open ended slot formed in said inner end and located in said bore, said open ended slot embracing said pin for relative sliding movement therewith, the other outer end of said handle being vertically shiftable so as to consequently cause said plunger to be moved in a vertical direction between said positions.