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US 11,731,452 B2Granted
Refillable pencil eraser case with reassembled bands
OwnerMichael Deriinventor
Life of this patent
Estimating the term…
Abstract
A holder for a pencil eraser with removable bands. As the eraser wears, connecting bands are removed, revealing more of the eraser. As the connecting bands are removed, they are replaced at the rear end so that the length of the eraser case remains the same. When the eraser is completely worn out, a new eraser is inserted in the eraser case.
Claims5
A method of maintaining a length of an eraser case comprising:
- assembling a plurality of connecting bands in front of a base band to define an elongated hollow portion of the eraser case, said base band retaining an eraser in said elongated hollow portion;
- removing one band of said plurality of connecting bands, thus shortening the elongated hollow portion of the eraser case and revealing a portion of the eraser;
- and
- placing the one band behind the base band as a back band thereby maintaining the length of the eraser case.
1 more element
Dependencies are inferred from the claim text.