| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 144280100 | Pencil sharpening | 21 |
| 144280110 | Hand-manipulable | 1 |
| 20160068009 | RECIPROCATING PENCIL SHARPENER - A reciprocating pencil sharpener has a shavings receptacle, a stationary member, a cutter and a ratchet mechanism. The cutter includes a blade secured to a blade holder. The ratchet mechanism is mounted between the stationary member and the cutter and allows the cutter to rotate relative to the stationary member in one direction only. When a user desires to sharpen a pencil, the user can keep the pencil in the hand and rotate the pencil in reciprocating rotation, thus obtaining the sharpened point of the pencil. Consequently, it is convenient for the user to apply a rotational force and a high efficiency of sharpening operation is achieved. | 03-10-2016 |
| 144280200 | Including elongated work holder or guide for edge-beveling | 1 |
| 20130255835 | AUTOMATIC PENCIL-FEEDING DEVICE FOR PENCIL SHARPENER - An automatic pencil-feeding device for a pencil sharpener, comprising a bracket ( | 10-03-2013 |
| 144280300 | Movable tool | 19 |
| 20110265911 | Pencil Sharpener, Adapter, and Method of Making Same - An example adapter for converting a manual-pencil sharpener into a powered sharpener for carpenter pencils is described. The example adapter has a housing including two cavities. A first cavity is configured to receive a substantial portion of a manual-pencil sharpener for carpenter pencils therein. A second cavity extends in a lengthwise and axial position opposite the first cavity. The second cavity has a complementary shape and size configured to receive a substantial portion of a hex-bit therein. | 11-03-2011 |
| 144280400 | Work actuated tool drive | 2 |
| 20110284129 | MORE SILENT AND ROBUST ELECTRIC PENCIL SHARPENER - A pencil sharpener for sharpening a pencil includes a central gear including an aperture along an axis of the central gear for receiving an end portion of the pencil. A first gear rotates the central gear and a strap joined to the central gear secures the pencil when the central gear is rotated. A shaft is in communication with the first gear where when the central gear is rotated the shaft is rotated. A cutting blade is in communication with the shaft where when the shaft is rotated the cutting blade cuts the end portion of the pencil at an angle to form a point. | 11-24-2011 |
| 20110290376 | Pencil Sharpener - A pencil sharpener comprises a housing comprising an aperture to accept a pencil inserted into an interior. A spring is joined to the interior with the spring configured to loop about the inserted pencil. A plate member comprises an aperture to pass the inserted pencil through the plate member. The plate member is configured for linear movement along a length of the inserted pencil. The spring contracts about the inserted pencil and holds the inserted pencil at a fixed position during movement of the plate toward an end of the inserted pencil. A plurality of cutting blade assemblies is joined to the plate to extend along the inserted pencil. Each of the assemblies comprises a cutting blade configured to shave the inserted pencil. A cone structure is configured to guide the cutting blades to shave the inserted pencil to form a point on the end of the inserted pencil. | 12-01-2011 |
| 144280500 | Work controlled switch for tool drive | 3 |
| 20100212781 | Pencil sharpener - A pencil sharpener has an electrical motor which drives a sharpening assembly. The end of the pencil to be sharpened is inserted downwardly into an opening in the top surface. Shavings from the sharpening process are deposited in a drawer-like receptacle below the sharpening assembly. A switch is provided so that the sharpening assembly will not be activated when the receptacle drawer is removed for disposal of the shavings. | 08-26-2010 |
| 20100326568 | SHARPENER WITH AUTOSTOP FEATURE - An electric pencil sharpener comprising a motor; a cutter assembly operatively connected to the motor, wherein the cutter assembly further includes: a conical housing defining a conical cavity therein for receiving a pencil; and at least one rotary blade mounted in close proximity to the conical cavity, wherein the at least one rotary blade further includes spiral cutting edges for sharpening the pencil; a switch assembly positioned at the narrow end of the conical housing, wherein the switch assembly further includes: a shutoff switch operative to deactivate the motor; mechanical means for actuating the shutoff switch when a desired degree of sharpening has been achieved by the cutter assembly; and an electronic control unit in electrical communication with the switch assembly and the motor, wherein the electronic control unit is operative to provide a delay of a predetermined period of time between when the shutoff switch is activated and when the motor is deactivated. | 12-30-2010 |
| 20110186178 | Safety device for an electric pencil sharpener - A safety device for an electric pencil sharpener is composed of at least a bracket, a selection turn table, a sliding block, a first switch, and a second switch. After rotating the selection turn table, the sliding block and the first switch are driven to move, such that the second switch is activated to cause a short circuit to the first switch, by a pillar which is formed at a side of the sliding block. The electric pencil sharpener can be only restarted to operate by pressing down manually a press button which is electrically connected with the second switch, so as to reduce danger of cutting a finer when a user puts the finger into a selection hole accidentally. | 08-04-2011 |
| 144280600 | Rotatable or revolvable | 13 |
| 20100078095 | MORE SILENT AND ROBUST ELECTRIC PENCIL SHARPENER - A pencil sharpener for sharpening a pencil includes a central gear including an aperture along an axis of the central gear for receiving an end portion of the pencil. A first gear rotates the central gear and a strap joined to the central gear secures the pencil when the central gear is rotated. A shaft is in communication with the first gear where when the central gear is rotated the shaft is rotated. A cutting blade is in communication with the shaft where when the shaft is rotated the cutting blade cuts the end portion of the pencil at an angle to form a point. | 04-01-2010 |
| 20110226383 | Hand-Cranked Pencil Sharpeners - Disclosed is a hand-crank pencil sharpener, comprising a housing and a gearing member and a sharpening member which are installed within the housing. The gearing member is connected to a hand crank and transmits a rotation of the crank to the sharpening member. A vertical feeding path is provided for a pencil to be inserted into the sharpening member. The hand-crank pencil sharpener further comprises a feeding member in the feeding path. The gearing member comprises a gearing branch for driving the feeding member. The inserted pencil is fed into or withdrawn from the sharpener automatically by a linkage of the gearing branch and the feeding member when the crank is rotated clockwise or counterclockwise. | 09-22-2011 |
| 20140209211 | ENERGY-STORAGE PEN IMPLEMENT SHARPENER - An energy-storage pen implement includes a base, a spiral knife assembly, a rotating plate, an elastic device and a pressing block. The base includes a first groove and a second groove, and the first groove is provided for inserting a pen implement. The spiral knife assembly is disposed at the first groove. The rotating plate is disposed at the first groove and connected to the spiral knife assembly. The elastic device is disposed at the second groove. One end of the pressing block is connected to the rotating plate, and another end of the pressing block is connected to the elastic device. When the elastic device moves resiliently to push the pressing block, the pressing block drives the rotating plate and the spiral knife assembly to rotate, thereby allowing the spiral knife to sharpen the tip of the pen implement. | 07-31-2014 |
| 20160059616 | Multi-Functional Pencil Sharpener with Power Station - An automatic, multi-functional pencil sharpener includes a pencil sharpening mechanism and a power docking station to provide power to charge an auxiliary electronic device, such as an electronic tablet or a mobile phone. An electrical power unit distributes electricity to the externally accessible docking station and the pencil sharpening mechanism. Power from an external power source is supplied to the electrical unit. The docking station may include multiple USB charging ports. | 03-03-2016 |
| 144280700 | Planetary | 3 |
| 20110284130 | Electronic Pencil Sharpener - An electric pencil sharpener includes a housing unit having an opening, a driving member driven by a motor, a cutting unit, and a panel unit. The cutting unit includes an outer frame mounted removably in the housing unit and including a ring gear, an inner frame disposed pivotally within the outer frame, and at least one cutting member disposed pivotally on the inner frame. The inner frame has a driven portion connected co-rotatably and removably to the driving member, and a cutting groove. The cutting member has a blade portion adjacent to the cutting groove, and a planetary gear portion meshing with the ring gear. The panel unit is mounted removably to the housing unit for covering the opening, and has a pencil-feeding hole. When the panel unit is removed from the housing unit, the cutting unit can be taken out of the housing unit through the opening. | 11-24-2011 |
| 20150129086 | SELF-CLEANING GEAR ASSEMBLY FOR PENCIL SHARPENERS - A gear assembly that includes a cutting gear having an outer edge and an inner edge, wherein a plurality of gear teeth is formed on the outer edge thereof; and an internal gear having an outer edge and an inner edge. The internal gear further includes a plurality of gear teeth formed on the inner edge thereof, wherein the gear teeth formed on the inner edge of the internal gear are adapted to engage the gear teeth formed on the outer edge of the cutting gear; a plurality of troughs, wherein each trough in the plurality of troughs is formed between two of the gear teeth formed on the inner edge of the internal gear; and a plurality of debris discharge channels, wherein each debris discharge channel is formed at the bottommost portion of each trough and extends away from the trough toward the outer edge of the internal gear. | 05-14-2015 |
| 144280710 | Plural tools | 1 |
| 20100326569 | SHARPENER WITH NOISE REDUCING FEATURES - An electric pencil sharpener is provided. This pencil sharpener includes a motor, a cutter assembly, mechanical means for operatively connecting the motor to the cutter assembly, and a housing. The cutter assembly includes a rotating carrier with at least two helical cutters mounted on the carrier. The mechanical means for operatively connecting the motor to the cutter assembly further includes a first gear assembly mechanically coupled to the motor; a second gear assembly mechanically coupled to the first gear assembly and to the cutter assembly; a gearbox for supporting the first and second gear assemblies; and a cover for enclosing the first gear assembly. The housing further includes a canopy and a base positioned underneath the canopy. | 12-30-2010 |
| 144280720 | Including orbital or electric motor drive | 5 |
| 20090000695 | Electric pencil sharpener - An electric pencil sharpener includes a motor, a transmission subassembly and a cutter subassembly driven by the motor, a feeding subassembly and at least one resilient adjusting means. The feeding subassembly includes a feeding gear set coupled to the transmission subassembly and two feeding rollers adapted to sandwich a pencil to be sharpened, at least one feeding roller is driven by the feeding gear set. The pair of brackets is arranged in parallel, respectively defining slide ways to movablely support the feeding rollers. A feeding space is defined between the two brackets. The at least one resilient adjusting means connects the two feeding rollers outside or inside the feeding space, adapted for keeping the feeding rollers nipping the pencil and engendering a pencil feeding friction. | 01-01-2009 |
| 20100175788 | Cutter Assembly and Electric Pencil Sharpener - A cutter assembly for an electric pencil sharpener has a cutter bracket and a cutter. The cutter bracket has a pencil sharpening hole and an engaging structure. The pencil sharpening hole is defined in the cutter bracket for a pencil being inserted into the pencil sharpening hole. The engaging structure is formed on the cutter bracket to engage a rotating frame in the electric pencil sharpener. The cutter is mounted rotatably on the cutter bracket. Accordingly, the cutter assembly is replaceable for the electric pencil sharpener when the cutter of the cutter assembly is damaged or worn off. | 07-15-2010 |
| 20120060976 | Cutter Assembly for an Electric Pencil Sharpener - A cutter assembly for an electric pencil sharpener has a cutter bracket and a cutter. The cutter bracket has a pencil sharpening hole and an engaging structure. The pencil sharpening hole is defined in the cutter bracket for a pencil being inserted into the pencil sharpening hole. The engaging structure is formed on the cutter bracket to engage a rotating frame in the electric pencil sharpener. The cutter is mounted rotatably on the cutter bracket. Accordingly, the cutter assembly is replaceable for the electric pencil sharpener when the cutter of the cutter assembly is damaged or worn off. | 03-15-2012 |
| 20130186517 | ELECTRIC PENCIL SHARPENER WITH A REPLACEABLE CUTTER ASSEMBLY - An electric pencil sharpener has a body, a cover and a cutter assembly. The body has a transmission device and a waste case having an opening. The cover is mounted on and closes the opening of the waste case. The cutter assembly is mounted in the waste case, is detachable from the waste case via the opening and has a connection base, a cutter bracket and a cutter. The connection base has a combining hole defined through the connection base. The cutter bracket is connected rotatably with the connection base and has a connection element connected with transmission device to make the cutter bracket driven by and rotate with the transmission device. The cutter is mounted on the cutter bracket. Accordingly, the cutter assembly is easily and conveniently replaceable when the cutter of the cutter assembly is damaged or worn off. | 07-25-2013 |
| 20140144548 | Electric Pencil Sharpener - An electric pencil sharpener includes a body with an end cap connected to the front end thereof and an insertion hole is defined through the end cap. A blade assembly is located in the body and adjacent to the end cap. The blade assembly has a blade frame, a blade unit and two guide members. The blade frame has one end rotatably connected to the end cap and communicates with the insertion hole. The two guide members are connected to the front end and the rear end of the blade frame. The guide member on the rear end of the blade frame has a groove which guides pencil shavings to the collection portion. The driving unit is connected to the body to drive the blade assembly. The blade assembly is located adjacent to the insertion hole so as to reduce the length that the pencil is inserted into the sharpener. | 05-29-2014 |
| 144280800 | Work holder or guide also rotary | 1 |
| 20120192995 | RECIPROCATING PENCIL SHARPENER - A reciprocating pencil sharpener has a stationary member, a cutter and a ratchet mechanism. The cutter includes a blade secured to a blade holder. The ratchet mechanism is mounted between the stationary member and the cutter and allows the cutter to rotate relative to the stationary member in one direction only. When a user desires to sharpen a pencil, the user can keep the pencil in the hand and rotate the pencil in reciprocating rotation, thus obtaining the sharpened point of the pencil. Consequently, it is convenient for the user to apply a rotational force and a high efficiency of sharpening operation is achieved. | 08-02-2012 |
