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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7908749 | Sharpener for stick-shaped cosmetic material A sharpener for a stick-shaped cosmetic material comprises guide rails (3h) disposed in a longitudinal direction over a sliding surface (3d), and a continuous surface (3g) at an upper side of both surfaces. The sliding surfa... | 03/22/2011 |
| 7363714 | Pencil sharpener A pencil sharpener has at least two sharpener units, each with a sharpener body and a shaving blade. The sharpener bodies of adjacent sharpener units being connected integrally via film strips acting as a predetermined bending point and/or predetermined separating p... | 04/29/2008 |
| 7310881 | Pencil shaving device An article for shaving pencils having a body member with a bore in the body member for receiving a pencil. The bore has at least one aperture or opening. The body member further includes a cutting, or shaving, device, so that upon a manual insertion of a pencil into... | 12/25/2007 |
| 7036231 | Sharpener for an oval pencil A sharpener includes a sharpener body, a guide collar and a shaving blade. The guide collar has an oval bore defining a pencil-guiding channel and is mounted on the sharpener body such that it can be rotated essentially about the axis of the pencil-guiding channel. ... | 05/02/2006 |
| 6976314 | Sharpener for soft-core pencils A sharpener for sharpening soft-core pencils, especially those used in the medical or pharmaceutical field, includes a housing; and a shaping componentry, received by the housing, for shaping and sharpening a medical or pharmaceutical pencil. The shaping componentry... | 12/20/2005 |
| 6966117 | Carpenters pencil sharpener A carpenters pencil sharpener having a body member having a T-shaped opening in its front wall. The body member has an interior pencil sharpening chamber having respective left and right upper support platforms and respective left and right lower support platforms. ... | 11/22/2005 |
| 6948251 | Pivoting sharpening device for pencil with non-circular cross section A sharpening device for a carpenter's pencil. A housing has a pivotable guide with a cruciform passage to receive the pencil in either of two positions. A pair of oppositely directed blades are mounted on opposed walls within the housing. The pencil is pivoted while... | 09/27/2005 |
| 6799374 | Belt wearable pencil sharpener A portable pencil sharpener, for use upon a belt, in sharpening pencils, having a housing having a top having a top opening, a rear, and defining an internal cavity. A belt clip is located on the rear to facilitate attachment to the belt. A motorized sharpener assem... | 10/05/2004 |
| 6698100 | Contractor's pencil sharpener mounting device A combination contractor's pencil sharpener and retainer includes a sharpener having a body member which is inserted through a retainer loop mounted on a plate. The plate is attached to a contractor's tool belt, tool case or the like. The sharpener is ret... | 03/02/2004 |
| 6571480 | Pencil sharpener for carpenter's pencil A hand-operable and portable pencil sharpener which is comprised of a housing having a conical cavity therein. The cavity is of circular cross-section and defines an open inlet end tapering to a narrow inner end. A collar is provided about the open inlet ... | 06/03/2003 |
| 6286218 | Sharpener, in particular for soft-core pencils A sharpener contains a housing having a receiving channel for a pencil which is to be sharpened. The sharpener is intended to be seated as a protective cap, when the pencil is not in use, with a clamping fit on the pencil circumference. The clamping conne... | 09/11/2001 |
| 6256892 | Carpenter's pencil sharpener A carpenter's pencil sharpener for sharpening carpenter's pencils is disclosed. The pencil sharpener comprises a housing having both a vertically oriented oval shaped bore and a horizontally oriented oval shaped bore extending therethrough. The oval shape... | 07/10/2001 |
| 5845406 | Soft core pencil sharpener including cleaning shaper A sharpener for a soft core pencil having a pencil end to be sharpened, the pencil end including a free core end, the sharpener comprising a housing defining: a guide conduit therein for receiving the pencil end to be sharpened; and a hollow space adjacen... | 12/08/1998 |
| 5599123 | Combined pencil sharpener and pencil stowage apparatus The present invention is a combined pencil sharpener and pencil stowage apparatus. The invention comprises a body, a pencil stowage compartment formed within the body for containing a tip of a pencil, and a separate pencil sharpener compartment formed wit... | 02/04/1997 |
| 5161587 | Pencil sharpener with acoustical and lamplight indicating effect The present invention is directed to a pencil sharpener that incorporates a conductive sharpening blade element for sharpening the pencil wherein the blade element is positioned along an inner wall surface of a bore hole so as to contact an outer surface ... | 11/10/1992 |
| 5077903 | Carpenter's pencil sharpener A carpenter's pencil sharpener for use in sharpening rectangularly shaped carpenter's pencils is disclosed wherein at the top of the housing the pencil sharpener is situated two rectangularly shaped openings juxtaposed to each other, the first a longitudi... | 01/07/1992 |
| 5040256 | Combination tape measurer and sharpener A combination tape measurer, pencil sharpener and knife blade sharpener is provided. The pencil and knife blade sharpeners are provided on a separate insert that is fitted onto the tape measurer. This allows each component to be used without interfering w... | 08/20/1991 |
| 5002182 | Crayon holder and container Resilient fingers extend from one end of the crayon holder whereby a crayon may be pushed forward by a push rod to project beyond the fingers. A sleeve is slidable on the fingers to clamp the crayon in adjusted position, the sleeve being movable between o... | 03/26/1991 |
| 4961451 | Sharpener for rectangular pencils Power operated sharpener for nonconic rectangular pencils has single, orbital, weight-balanced cylindrical milling cutter which follows orbital path set by the track of an eliptical internal gear. The cylindrical milling cutter is carried loosely upstandi... | 10/09/1990 |
| 4761885 | Sharpener for compass leads and pencil leads A conventional means for sharpening leads consists of a flat stick covered with abrasive paper strips that do not prevent lead residue from falling out onto desks, equipment, hands and drawings. Cone shaped lead sharpeners are known but when used for comp... | 08/09/1988 |
| 4593468 | Convertible note pad and pencil sharpener Stationary apparatus presenting a combination memo pad holder and pencil sharpener assembly. The apparatus generally comprises a main housing having a compartment for insertion of a note pad therein. Flanges on the sharpener assembly releasably engage tra... | 06/10/1986 |
| 4333506 | Pencil sharpener A hand-held pencil sharpener preferably of metal has opposed gripping surfaces formed with longitudinal ridges and recesses which are relatively wider than in conventional sharpeners to avoid their becoming clogged with dirt.... | 06/08/1982 |
| 4255828 | Battery terminal post cleaning tool A tool for cleaning the terminal posts of a storage battery, the posts being of different diameters. A socket body having an inside diameter large enough to engage over the battery post has a cut-away window in the circumferential wall thereof. The socket... | 03/17/1981 |
| 4231405 | Pencil driven mechanical pencil sharpener A mechanical pencil sharpener including a housing with a cutter assembly adapted to receive the end of a pencil along its longitudinal axis. The manual force associated with inserting a pencil into the cutter assembly causes the cutter assembly to slidabl... | 11/04/1980 |
| 4081010 | Pencil sharpener for non-circular section pencils A pencil sharpener for non-circular section pencils comprising a first tubular element for receiving the pencil without permitting the sliding or rotation of the latter relatively to the former. The sharpener is fitted with cams near the top end thereof, ... | 03/28/1978 |
| 3980113 | Pencil sharpener A pencil sharpener having a base on which a sharpening assembly, including sharpening rollers, is mounted, a housing defined by a hollow figure formed of a flexible, deformable material and simulating the head of an animal enveloping the sharpening assemb... | 09/14/1976 |
