Abstract:
A hand-held, battery-operated air blower is disclosed having a housing with a handle portion, a discharge end, an air inlet and a discharge aperture. A battery compartment is provided in the handle portion of the housing to contain one or more batteries. The battery compartment is electrically connected to a motor disposed within the housing between the battery compartment and the discharge aperture, transverse to the longitudinal axis of the housing. A centrifugal fan is mounted on the motor and positioned within the housing adjacent the air inlet in such a manner that operation of the fan draws air in through the air inlet and forces it out from the fan toward the discharge aperture then out through the discharge aperture. An actuator is provided for switching the flow of electricity from the batteries to turn the motor on and off.
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. In other alternate embodiments, the looped attachments may be spaced to fit a three-ringed binder, different sharpening units sized to sharpen either pencils or crayons may be used, the unit may be designed to use replaceable sharpening units to prolong the useful life of the sharpener, and the unit is provided with stabilizers adjacent to the actuator button to prevent the unit from freely rolling around.
Abstract:
A hand-held device for shredding paper comprising a pair of rotary cutting wheels (38, 40) disposed within a housing between an inlet slot and an outlet slot. A motor is positioned in the handle to drive the cutting wheels through a gear assembly. One wheel serves as a drive wheel, which is coupled directly to the gear assembly, and the other wheel serves as an idler, driven from a spur gear attached to the drive wheel at the end opposite a gear case. Paper sheets are fed into the inlet slot (18) and pulled between the wheels. Wheels are comprised of a stack of alternating disks of a large and small radius, and staggered so as to allow the two wheels to be interleaved while rotating in opposite directions.
Abstract:
A capless retractable sealed marking instrument has a sealed chamber incorporated in a marker casing. The sealed chamber includes a chamber, a wiper ring, and an annular rim and a seal portion with a cross-slit aperture defining surfaces or flaps which are moved out of contact by a linearly advanced marker nib to open the seal for extension of the marker nib. The configuration of the disk provides positive sealing force between the lateral sealing surfaces on the seal flaps. Retraction of the marker nib draws the flaps back into the sealed chamber configuration to protect the marker nib and cartridge from atmospheric degradation.
Abstract:
A capless, retractable marking instrument (10) has an airtight cavity incorporated in a housing portion (14). The airtight cavity has a chamber portion (30), a wiper seal (34) at one end of the chamber portion (30) and a seal portion (32) at the opposite end of the chamber portion (30). The seal portion (32) is positioned at the forward nib end of the marking instrument (10). The seal portion (32) has an aperture (116) defined by a cross-slit construction that includes two interconnecting linear slits (118, 120). The linear slits (118, 120) define flaps (122) which flex outwardly and back corresponding to the direction of travel of the nib portion (48) of the marketing instrument (10). The flaps (122) roll outwardly when the nib portion (48) is in the extended position and when the nib portion (48) is retracted the flaps (122) gently wipe any excess ink from the nib portion (48) and return to a closed, sealed position to maintain an airtight barrier in the cavity thereby substantially eliminating evaporation of the ink through the nib portion (48).
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. In other alternate embodiments, the looped attachments may be spaced to fit a three-ringed binder, different sharpening units sized to sharpen either pencils or crayons may be used, the unit may be designed to use replaceable sharpening units to prolong the useful life of the sharpener, and the unit is provided with stabilizers adjacent to the actuator button to prevent the unit from freely rolling around.
Abstract:
A portable, handheld envelope opening device is disclosed. The envelope opening device has a head portion and a handle portion. The head portion includes a slot defined by a pair of opposing walls and a base plate. The walls being spaced so as to guide the passage of an envelope and preferably are slightly angled to provide a tapered insertion end. A pair of rotary discs disposed within the head portion adjacent the base plate intersects in partially overlapping fashion along a centerline of said slot. The discs are spaced and positioned adjacent the base plate. The first disc includes a cutting edge, and the second disc is adapted to urge the envelope into engagement with the first cutting disc to sever a marginal edge of the envelope to expose the contents. A motor is coupled through a gearbox to the rotary discs to drive the discs. A switch is used to couple the motor to a battery power supply. In one embodiment, a decorative edge is applied to the envelope but the cutting disc by providing a sawtooth or undulating cutting edge on the disc.
Abstract:
A portable, handheld envelope opening device is disclosed. The envelope opening device has a head portion and a handle portion. The head portion includes a slot defined by a pair of opposing walls and a base plate. The walls being spaced so as to guide the passage of an envelope and preferably are slightly angled to provide a tapered insertion end. A pair of rotary discs disposed within the head portion adjacent the base plate intersects in partially overlapping fashion along a centerline of said slot. The discs are spaced and positioned adjacent the base plate. The first disc includes a cutting edge, and the second disc is adapted to urge the envelope into engagement with the first cutting disc to sever a marginal edge of the envelope to expose the contents. A motor is coupled through a gearbox to the rotary discs to drive the discs. A switch is used to couple the motor to a battery power supply. In one embodiment, a decorative edge is applied to the envelope but the cutting disc by providing a sawtooth or undulating cutting edge on the disc.
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. In other alternate embodiments, the looped attachments may be spaced to fit a three-ringed binder, different sharpening units sized to sharpen either pencils or crayons may be used, the unit may be designed to use replaceable sharpening units to prolong the useful life of the sharpener, and the unit is provided with stabilizers adjacent to the actuator button to prevent the unit from freely rolling around.
Abstract:
A hand-held, battery-operated air blower is disclosed having a housing with a handle portion, a discharge end, an air inlet and a discharge aperture. A battery compartment is provided in the handle portion of the housing to contain one or more batteries. The battery compartment is electrically connected to a motor disposed within the housing between the battery compartment and the discharge aperture, transverse to the longitudinal axis of the housing. A centrifugal fan is mounted on the motor and positioned within the housing adjacent the air inlet in such a manner that operation of the fan draws air in through the air inlet and forces it out from the fan toward the discharge aperture then out through the discharge aperture. An actuator is provided for switching the flow of electricity from the batteries to turn the motor on and off.