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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7472728 | Electrically powered rapid sharpening cosmetic pencil sharpener 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 ti... | 01/06/2009 |
| 7455087 | Electric sharpener for writing instruments 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 open... | 11/25/2008 |
| 7360566 | Structure of automatic pencil sharpener 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 in... | 04/22/2008 |
| 7311235 | Electric stapler with pencil sharpener An electric pencil sharpener is accommodated in a front part of a lower housing. An electric stapler is accommodated in an upper housing including a shared surface that is used as a top face of the lower housing, as its bottom face. A power transformer for supplying... | 12/25/2007 |
| 7278214 | Electric pencil sharpener An electric pencil sharpener includes a power source, such as a plurality of batteries, disposed within a base portion. The electrical pencil sharpener further includes a housing portion connected to the base portion and a motor disposed within the housing portion, ... | 10/09/2007 |
| 7273079 | Electric pencil sharpener 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 wh... | 09/25/2007 |
| 7240703 | Automatic pencil sharpener 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 mechani... | 07/10/2007 |
| 7134461 | Pencil sharpener 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 ... | 11/14/2006 |
| 6845795 | Portable handheld sharpener with loop attachment 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... | 01/25/2005 |
| 6637481 | Apparatus for sharpening a writing instrument 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 m... | 10/28/2003 |
| 6470929 | Pencil sharpener 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... | 10/29/2002 |
| 6427343 | Pencil sharpener having a pencil limiting device 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 f... | 08/06/2002 |
| 6249981 | Structure of a pencil sharpener 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 rep... | 06/26/2001 |
| 6065514 | Compact handheld battery-operated cosmetic pencil sharpener A portable, handheld, sharpening device for sharpening a cosmetic pencil having an outer casing of hard material and an inner casing of soft wax-like cosmetic material. The device includes a plastic housing, a steel blade for removing the outer casing of ... | 05/23/2000 |
| 5875555 | Crayon sharpener assembly A crayon sharpening assembly is disclosed comprising an axially rotating cartridge block (106) having an axial bore (178) for axial receipt of a crayon with a forward end of the crayon positioned within a cutting station (152). A pair of convergent sharpe... | 03/02/1999 |
| 5802948 | Method for sharpening crayons A crayon sharpening assembly is disclosed comprising an axially rotating cartridge block (106) having an axial bore (178) for axial receipt of a crayon with a forward end of the crayon positioned within a cutting station (152). A pair of convergent sharpe... | 09/08/1998 |
| 5379817 | Sharpener for a soft element pencil A sharpener for a soft element pencil has a housing with a pencil hole. A rotor rotatably mounted in the housing has: (a) a base portion, (b) an annular portion spaced from said base portion, and (c) a blade supported at but not between the base and the a... | 01/10/1995 |
| 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 |
| 5052453 | Structure of pencil sharpener A pencil sharpener, comprising an audio circuit reporter which gives audio signal to report that pencil has been well sharpened. The audio circuit reporter is comprised of an audio circuit, a dry battery and a speaker. The two opposite terminal ends of th... | 10/01/1991 |
| 4601316 | Electric pencil sharpener A pencil sharpener which includes a sliding safety shield preventing operation of the sharpener with the pencil drawer removed and further preventing a pencil to be inserted into the sharpener so as to actuate the cutter assembly unless the shavings drawe... | 07/22/1986 |
| 4050487 | Electric sharpener An electric sharpener is disclosed, wherein its sharpener section is driven by a motor powered from a self-contained battery in an arrangement that said motor and a reduction means for transmitting the revolving force of said motor to said sharpener secti... | 09/27/1977 |
| 3937239 | Time delay mechanism for pencil sharpener A time delay mechanism positioned in the pencil sharpener housing near the entry point of the pencil delays the entry of the pencil into the sharpening cavity and simultaneously moves the helical cutting mechanism inwardly into engagement with a leaf spri... | 02/10/1976 |
