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US 6,547,465 B1Granted
Pencil with exposable eraser
AssigneeShoot the Moon Products II, LLC
InventorsPaul Rago, David Small
Life of this patent
Estimating the term…
Abstract
A pencil has a fixed non-replaceable eraser and a moveable sleeve. The fixed non-replaceable eraser is elongated to provide a larger eraser to pencil ratio in order to have more erase cycles per write cycles. The moveable sleeve can be moved to selectively expose a portion of the eraser. A ferrule couples the pencil body and the eraser together and provides an outer surface to engage an inner surface of the moveable sleeve. In one embodiment, a threaded female slot in the outer surface of the ferrule engages a male threaded tab in the inner surface of the sleeve. In another embodiment, a plurality of concentric slots in the outer surface of the ferrule engage a tab in the inner surface of the sleeve.
Claims43
A writing instrument comprising:
- a lead pencil having a first end and a second end;
- a ferrule coupled to the second end of the lead pencil, the ferrule having one or more slots in an outer surface;
- an elongated fixed eraser having a first end coupled to the ferrule and a second end free to erase pencil marks;
- and
- an eraser sleeve moveably coupled to the one or more slots of the ferrule, the eraser sleeve covering an unused portion of the elongated fixed eraser and exposing an erasing portion of the elongated fixed eraser.
2 more elements
A pencil comprising:
- a lead pencil body having a sharpening end, a first butt end, and a lead center;
- a hollow cylindrical ferrule having a first end and a second end, the first end of the hollow cylindrical ferrule being coupled onto the first butt end of the pencil body, the hollow cylindrical ferrule having one or more slots in an outer surface;
- an elongated non-replaceable eraser having a second butt end coupled into the second end of the hollow cylindrical ferrule, the elongated non-replaceable eraser having an eraser end to erase pencil marks;
- and
- a hollow cylindrical sleeve slideably coupled to the one or more slots in the outer surface of the hollow cylindrical ferrule, the hollow cylindrical sleeve covering and supporting an unused portion of the elongated non-replaceable eraser and exposing and supporting an erasing portion of the elongated non-replaceable eraser including the eraser end.
2 more elements
A pencil comprising:
- a lead pencil body having a sharpening end, a first butt end, and a lead center;
- a hollow cylindrical ferrule having a first end and a second end, the first end of the hollow cylindrical ferrule being coupled onto the first butt end of the pencil body, the hollow cylindrical ferrule having a first thread in an outer surface;
- an elongated non-replaceable eraser having a second butt end coupled into the second end of the hollow cylindrical ferrule, the elongated non-replaceable eraser having an eraser end to erase pencil marks;
- and
- a hollow cylindrical sleeve having a second thread threadingly coupled to the first thread in the outer surface of the hollow cylindrical ferrule, the hollow cylindrical sleeve covering an unused portion of the elongated non-replaceable eraser.
2 more elements
A method of forming a pencil comprising:
- providing a cylindrical lead pencil body having a first end, a second end, and a lead center;
- providing an elongated cylindrical eraser having a first end and a second end;
- inserting the first end of the cylindrical lead pencil body into a first end of a hollow cylindrical ferrule;
- inserting the first end of the elongated cylindrical eraser into a second end of the hollow cylindrical ferrule;
- crimping the first end of the hollow cylindrical ferrule into the cylindrical lead pencil body;
- crimping the second end of the hollow cylindrical ferrule into the elongated cylindrical eraser;
- sliding a hollow cylindrical sleeve over the second end of the cylindrical lead pencil body;
- and
- engaging an inner surface of the hollow cylindrical sleeve with an outer surface of the hollow cylindrical ferrule including screwing a screw tab in the hollow cylindrical sleeve onto a female thread in the outer surface of the hollow cylindrical ferrule.
6 more elements
The method of 35, wherein
- the hollow cylindrical sleeve to selectively expose and support an erasing portion of the elongated cylindrical eraser.
The method of 35, wherein
- the hollow cylindrical sleeve to selectively protect an unused portion of the elongated cylindrical eraser.
A method of forming a pencil comprising:
- providing a cylindrical lead pencil body having a first end, a second end, and lead center;
- providing an elongated cylindrical eraser having a first end and a second end;
- inserting the first end of the cylindrical lead pencil body into a first end of a hollow cylindrical ferrule;
- inserting the first end of the elongated cylindrical eraser into a second end of the hollow cylindrical ferrule;
- crimping the first end of the hollow cylindrical ferrule into the cylindrical lead pencil body;
- crimping the second end of the hollow cylindrical ferrule into the elongated cylindrical eraser;
- sliding a hollow cylindrical sleeve over the second end of the cylindrical lead pencil body;
- and;
- engaging an inner surface of the hollow cylindrical sleeve with an outer surface of the hollow cylindrical ferrule including;
- snapping a lock tab in the inner surface of the hollow cylindrical sleeve into a slot in the outer surface of the hollow cylindrical ferrule.
7 more elements
A method for assembling an eraser comprising:
- providing a pencil with a ferrule to couple the pencil and the eraser together, the ferrule has a plurality of concentric slots in an outer surface;
- providing an eraser sleeve covering the eraser, the eraser sleeve has a tab to engage one of the plurality of slots;
- and
- to expose a portion of the eraser, the moving of the eraser sleeve is performed by moving the eraser sleeve sliding the tab of the eraser sleeve from one concentric slot in the ferrule to another to expose a portion of the eraser.
1 more element
A method for assembling an eraser comprising:
- providing a pencil with a ferrule to couple the pencil and the eraser together, the ferrule has a thread slot in an outer surface;
- providing an eraser sleeve covering the eraser, the eraser sleeve has a thread tab to engage the thread slot;
- and
- moving the eraser sleeve to expose a portion of the eraser, the moving of the eraser sleeve is performed by screwing the thread tab of the eraser sleeve down and around the thread slot to expose a portion of the eraser.
1 more element
A pencil comprising:
- a lead pencil having a sharpening end, a butt end, and a writing core;
- an elongated eraser having a butt end and an eraser end;
- an eraser holder having a pencil socket to receive the butt end of the pencil and an eraser socket to receive the butt end of the elongated eraser, the eraser holder being coupled to the lead pencil and the elongated eraser, the eraser holder further having an outer surface with a thread,
- and
- an eraser sleeve to cover, expose, and support the elongated eraser, the eraser sleeve having an inner surface with a thread to engage the thread of the eraser holder to control the exposure of the elongated eraser.
2 more elements
A pencil comprising:
- a lead pencil having a sharpening end, a butt end, and a writing core;
- an elongated eraser having a butt end and an eraser end;
- an eraser holder having a pencil socket to receive the butt end of the pencil and an eraser socket to receive the butt end of the elongated eraser, the eraser holder being coupled to the lead pencil and the elongated eraser, the eraser holder further having an outer surface with one or more concentric slots, and
- an eraser sleeve to cover, expose, and support the elongated eraser, the eraser sleeve having an inner surface with at least one tab to engage one of the one or more concentric slots of the eraser holder to control the exposure of the elongated eraser.
1 more element
Dependencies are inferred from the claim text.