Abstract: An electric pencil sharpener includes a power device. The power device is connected to two rotatable rubber wheels by a transmission mechanism. The two rubber wheels are located on two sides of the pencil to be sharpened, are rotated in opposite directions and closely fit a side wall of the pencil to be sharpened, to push upwards or downwards the pencil to be sharpened to move. A gap between the two rubber wheels is adjustable. The electric pencil sharpener further includes a rotatable cutter carrier assembly located below the rubber wheels configured to sharpen the pencil to be sharpened. The electric pencil sharpener can sharpen the pencil of different diameters, and has a sharpening process requiring no human participation, has a wide application and saves manual operation.

Abstract: Disclosed is a plant stripper for separating buds or fruit from the stems or branches of a plant. In one embodiment, the plant stripper is defined by a housing that contains a face plate, bladed rollers, and motor and gear system for counter turning the rollers. In operation, a plant stem bearing buds or fruit may be provided through a plant hole in the face plate and gripped by the counter turning rollers so that continued counter turning of the rollers pulls the stems or plants through the plant hole of the face plate. Suitably, the plant hole is gauged so that only the stem may pass through the hole but not the buds or fruit whereby the buds or fruit of the plant are stripped from the plant via action of the stem through the plant hole. In one embodiment, the plant stripper features a guide tray for catching stripped buds or fruit and guiding the same to a collection bin.

Abstract: The present invention provides an electric pencil sharpener, and pertains to the field of mechanical technology. It resolves the issue that existing electric pencil sharpeners are unable to be switched off automatically when emptying the shavings debris. The present electric pencil sharpener comprises a housing, and a power receptacle is fixed to the housing. The electric pencil sharpener also comprises a base. The housing is placed on the base, while a power connector is fixed to the base. The power connector is electrically connected to the power receptacle, and a locating structure is arranged between the housing and the base to circumferentially secure the housing and the base. It has the advantages that the power is cut off automatically while the normal service performance is ensured.

Abstract: 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.

Abstract: A pencil-centering assembly for use in pencil sharpeners or the like that includes a frame; a linking member rotatably mounted within the frame; a plurality of pencil contact levers, wherein each contact lever includes a top portion and a bottom portion, wherein the top portion of each pencil contact lever is adapted to engage the linking member, wherein the bottom portion of each pencil contact lever, in combination with the other pencil contact levers, defines a pencil insertion aperture having a center axis, and wherein the bottom portion of each pencil contact lever extends in to the pencil insertion aperture to about the same distance; and at least one biasing member in contact with the linking member, wherein the biasing member exerts force on each pencil contact lever by way of the linking member sufficient to bias each pencil contact lever toward the center axis of the pencil insertion aperture.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An electric pencil sharpener, comprises a base, a powering device, a feeding subassembly, a cutter subassembly and an adjusting subassembly. Two brackets (31, 32) are mounted on the base, standing face to face. Each of the brackets defines two guideways (35) therein. The powering device is attached to the base. The feeding subassembly comprises a feeding gear module and a pair of feeding rollers (23, 24). The feeding rollers are respectively supported in guideways between the brackets. The feeding gear module driven by the powering device makes one of feeding rollers to rotate therein. The adjusting subassembly encompasses the feeding rollers on the bracket. The adjusting subassembly pushes the feeding rollers to move along the guideways. With restriction of the guideways, the distance between the two feeding rollers alters so that pencils with different size can be automatically fed and processed.

Abstract: The present invention is a novel electrically powered cosmetic pencil sharpener which firmly sits on a flat surface to avoid shaking during the sharpening process and firmly grips the cosmetic pencil tip to enable the apparatus to rapidly sharpen the paraffin wax tip within three (3) seconds so that the tip will not shatter or crack. The apparatus rapidly sharpens the cosmetic pencil so that its applicator end is formed at a thirty (30) degree angle with a flat tip so as to provide an ideal applicator end. The apparatus includes an indicator light that tells the individual that the sharpening process is complete.

Abstract: An electric sharpener for writing instruments, e.g. an electric pencil sharpener, is disclosed as including an electric motor, a cutting blade which may be driven by the electric motor to rotate to cut an end of a pencil received within the sharpener, a circuit opening arrangement operatively associated with the motor in which the circuit opening arrangement is adapted, upon insertion of the pencil into the electric pencil sharpener by a pre-determined length, to open an electric circuit in the sharpener to cease operation of the electric motor, and an adjustment member operable to change the orientation of the circuit opening arrangement relative to a longitudinal axis of the electric sharpener to vary the pre-determined length.

Abstract: An electric sharpener for writing instruments, e.g. an electric pencil sharpener, is disclosed as including an electric motor, a cutting blade which may be driven by the electric motor to rotate to cut an end of a pencil received within the sharpener, a circuit opening arrangement operatively associated with the motor in which the circuit opening arrangement is adapted, upon insertion of the pencil into the electric pencil sharpener by a pre-determined length, to open an electric circuit in the sharpener to cease operation of the electric motor, and an adjustment member operable to change the orientation of the circuit opening arrangement relative to a longitudinal axis of the electric sharpener to vary the pre-determined length.

Abstract: The invention is related to a pencil sharpener with automatic shut-off, especially at the end of the pencil rail there is a push-pin on a slider, which can slide backward to hit against a tab in the center of the swing rod, so the hooks on the two sides of the swing rod can touch a brake switch after rotation and shut off operation of the power device to stop the sharpening mechanism. Through this, upon completion further inward movement of the pencil allows the pencil tip to press the push-pin and stop the motor, which prevents wastes by excessive sharpening.

Abstract: An automatic pencil sharpener has a plurality of different sizes of pencil selector openings in a front side of a pencil selector panel, and an annulus groove at the back side of the pencil selector panel for mounting the trigger. Accordingly, the pencil inserted into the pencil receiving opening will keep a constant distance with the trigger switch, regardless of the sizes of the pencil inserted, thereby smoothing the pencil operation in the device.

Abstract: An electric pencil sharpener, comprises a base, a powering device, a feeding subassembly, a cutter subassembly and an adjusting subassembly. Two brackets (31, 32) are mounted on the base, standing face to face. Each of the brackets defines two guideways (35) therein. The powering device is attached to the base. The feeding subassembly comprises a feeding gear module and a pair of feeding rollers (23, 24). The feeding rollers are respectively supported in guideways between the brackets. The feeding gear module driven by the powering device makes one of feeding rollers to rotate therein. The adjusting subassembly encompasses the feeding rollers on the bracket. The adjusting subassembly pushes the feeding rollers to move along the guideways. With restriction of the guideways, the distance between the two feeding rollers alters so that pencils with different size can be automatically fed and processed.

Abstract: An electric sharpener has a casing, an electric motor, and a flat cutting blade for turning by the motor. There is an aperture in the casing through which a pencil can be inserted for sharpening by the cutting blade. An activation sensor is included for detecting when a pencil has been inserted through the aperture to close the electrical circuit, and a deactivation sensor for detecting a sharpened tip of the pencil to open the electrical circuit, thereby stopping the motor. The deactivation sensor has an actuating part for engagement and movement by the tip and a contact part supported by the actuating part for concurrent movement to break electrical contact with a fixed contact in the electrical circuit.

Abstract: An automatic pencil sharpener having a motor, a transmission device, a cutter assembly, a feeding device, a feeding reverse mechanism, and a manual reverse mechanism. The feeding device has a pair of feeding rollers for feeding the pencil. The manual reverse mechanism for manually retreating the pencil has a pushing rod and a key switch. The pencil is fed by the feeding device and delivered to the cutter assembly. The cutter assembly processes the pencil. After the pencil is shaved, the feeding reverse mechanism drives the motor to rotate in a reverse direction so as to retreat the pencil from the sharpener. When the pencil is too short to shave and stops in the sharpener, the pencil is retreated from the sharpener by the manual reverse mechanism.

Abstract: A pencil sharpener includes a frame, a drive mechanism, a transmission mechanism, a cutting mechanism, and a pencil-core adjustment mechanism. The pencil-core adjustment mechanism is constituted of a core stopper shaft, an elastic body, and a core adjustment switch constituted of electrode plates aligned in parallel. A pencil inserted into the cutting mechanism presses against and turns ON a switch provided in the drive mechanism to transmit power from the electric power supply unit to the drive device, thereby operating the cutting mechanism via the transmission mechanism to sharpen the pencil. When the pencil is pressed against the upper end of the core stopper shaft, a disk of the core stopper shaft contacts and pushes down one end of the longer electrode plate to separate the projection of the longer electrode plate from the shorter electrode plate, thereby turning OFF the core adjustment switch.

Abstract: A portable, handheld sharpener having an elongated body with loop attachments, a battery-operated DC motor with speed reducing gears and a gear plate and a rotatable sharpening unit. A pouch-shaped waste shavings receptacle detachably attached to the body provides a larger cross-sectional dimension ergonomically contoured to fit within the grip of a hand while providing increased internal space for waste shavings storage. An actuator button is molded into the receptacle and is partially circumscribed to provide a hinge-like action to engage a leaf spring connecting the battery source to the motor and also provides a momentary operation of the sharpener while in the original retail packaging. The actuator button will not operate when the receptacle is detached from the sharpener and the internal sharpening unit is exposed, thus acting as a safety feature.

Abstract: An apparatus for sharpening a writing instrument, e.g. an electric pencil sharpener, is disclosed as including a body for receiving a pencil for sharpening, and a base, the base having a bottom surface to support the apparatus on a surface, and the body may be positioned relative to the base in a first configuration and at least a second configuration, and when the body is positioned relative to the base in the first configuration, a longitudinal axis of the body and an axis perpendicular to the bottom surface of the base subtend a first angle, and when the body is positioned relative to the base in the second configuration, these two axes subtend a second angle which differs from the first angle.

Abstract: A pencil sharpener including a self-governing sharpening assembly, a motor for driving the sharpening assembly, and a selector guide. The selector guide defines a plurality of openings positionable for aligning pencils of various sizes with the sharpening assembly. The sharpening assembly includes a rotary blade and a shaft having a reduced diameter portion. A blade holder defines a conical cavity for receiving a pencil and is driven by a drive shaft. A stop is connected to the lower end of the shaft and is slidably mounted to the blade holder in alignment with the conical cavity and is biased by a spring member to position the reduced diameter portion of the shaft away from the bearing lug of the blade holder. Sharpening ceases when a pencil moves the stop, causing receiving of the reduced diameter portion in a bearing lug and pivoting of the rotary blade away from the pencil.

Abstract: A pencil sharpener includes a casing secured in a housing and having a groove for receiving a pencil to be sharpened and having a cutter blade for sharpening the pencil. A device has a slide slidably received in the housing and has an extension extended from a resilient arm and engaged into the groove of the casing for determining the engagement of the pencil into the groove of the casing and for controlling the sharpening operation of the pencil. The slide may be adjusted relative to the housing for adjusting the engagement of the extension into the casing.

Abstract: An improved structure of a sharpener comprising an ornamental seat, a light-emitting body, a fixing seat module, a spring, a conductive cap, a push rod, a main body containing a sharpening means, and a bottom cap, wherein the fixing seat module can be replaced by a circuit board, a musical disc and a sound mask. When a pencil is inserted into a sharpening aperture provided on the main body, the push rod is elevated and the light-emitting body at the top end of the fixing seat module is lighted. When the circuit board is used to replace the fixing seat module and a pencil is inserted into the sharpening aperture, the light-emitting body on the circuit board is lighted and music is produced. If the pencil is withdrawn from the main body, there is no electrical current provided to the circuit board, and thus, the music and the light are turned off.