Patent ID: 11952169
Assignee: nan
Field: Handling (Mechanical engineering)
Classification: CPC B  A | IPC A  B

Claim 0:
1. A food preserver comprising:
a first sleeve having a wall, a first end and a second end, the wall of the first sleeve enclosing a space within the first sleeve and having a length greater than its depth, the first and second ends of the first sleeve open to enable free access to the space within the first sleeve;
a second sleeve having a wall, a first end and a second end, the wall of the second sleeve enclosing a space within the second sleeve and having a length greater than its depth, the first end of the second sleeve open to enable free access to the space within the second sleeve, the second end of the second sleeve closed to inhibit access to the space within the second sleeve, the depth of the second sleeve being more than the depth of the first sleeve such that the first sleeve engagedly fits within the second sleeve; and
a third sleeve having a wall, a first end and a second end, the wall of the third sleeve enclosing a space within the third sleeve and having a length greater than its depth, the first end of the third sleeve open to enable free access to the space within the third sleeve, the depth of the third sleeve being less than the depth of the second sleeve such that the third sleeve engagedly fits within the second sleeve, the third sleeve configured to fit within the second sleeve a distance greater than half the length of the second sleeve, the depth of the third sleeve being less than the depth of the first sleeve such that the third sleeve engagedly fits within the first sleeve.