49 results about "Ink eraser" patented technology

A two piece eraser assembly for use as a rotary tool attachment for abrading surfaces enables quick and easy replacement of worn eraser disks without requiring the assistance of any hand held tools in either the removal or in the reinstallation process. The assembly, including aftermarket replacement parts therefor, comprise an eraser disk and an eraser hub for mounting and holding the eraser disk. The eraser hub includes upper and lower surfaces, wherein the eraser hub upper surface features a centrally positioned throughbore, a flange at the peripheral edge of the hub and a stub shaft on the lower surface positioned axially with the throughbore. The eraser hub includes a plurality of spaced apertures for engaging with and detachably locking eraser disk extensions on the backside, so the eraser disk is mounted flush with the eraser hub. The upper surface of the eraser disk includes a central recess and an aperture in the recess keyed for axially alignment with the throughbore of the eraser hub. The eraser disk is also equipped with a plurality of abrading teeth running radially from the central recess to the peripheral edge thereof. The lower surface opposite the upper surface of the eraser disk further comprises a plurality of mounting elevations keyed for engaging with the spaced apertures or slots in the eraser hub for securely locking the eraser disk to the eraser hub, avoiding slippage of the eraser disk during operation, while allowing quick replacement when worn with manual dexterity only.

The present invention relates to an eraser system, and particularly relates to an independent eraser system for the digitizer coordinate system. The independent eraser system for the digital coordinate system is separated from the digitizer pen, and thus, the independent eraser system and the digitizer pen can be operated independently and simultaneously. The independent eraser system comprises an erasing function circuit and the erasing function circuit comprises a power supplier for providing the electric energy, an oscillating circuit for providing the electric signals and a converter for converting the electric signals into magnetic signals.

The invention discloses an eraser cutting device with small abrasion on the eraser. The eraser cutting device comprises a workbench, wherein a front supporting plate and a rear supporting plate are respectively arranged at the front end and the rear end of the top surface of the workbench; a feeding port is arranged at the bottom end of the front supporting plate; a working top plate is fixedly arranged at the top end of the front supporting plate and the top end of the rear supporting plate; a pushing device and a cutting device are arranged on the working top plate; a lifting feeding mechanism is arranged on one side of the rear supporting plate; the lifting feeding mechanism comprises a feeding cylinder; the center of the lower end of the rear supporting plate is screwed with a limitingbolt; and the bottom end of the limiting bolt is fixed with a limiting backing plate. The eraser cutting device has the advantages that the eraser is conveyed through a roller shaft, a turntable andthe lifting feeding mechanism, so that the left side surface, the right side surface and the bottom surface of the eraser do not directly rub with the surface of the workbench, the sliding rubbing ischanged into rolling rubbing, the abrasion of the eraser is greatly reduced, and the quality of the eraser is improved.

A dust-absorbing eraser, the mini-vacuum cleaner is inside the casing, and the automatic eraser is arranged at the front end of the casing; a switch is arranged on the casing, and an air outlet is arranged at the rear; a battery is arranged inside, and a battery cover is arranged on the casing; the mini-vacuum cleaner includes Motor 1, motor 1 is connected with fan blades, the fan blades are connected with the dust collection box, the filter screen is set on the dust collection box, the dust collection box cover is set at the lower part of the dust collection box, the air inlet is set on the dust collection box cover, and the air inlet is set around the air inlet. The brush and the dust box cover can be taken out for cleaning; the automatic eraser includes an eraser, an eraser body, and a second motor; the eraser can be replaced; the first motor, the second motor, and the switch are connected to the battery. The invention is easy to use, can keep the desktop clean and tidy, improves the use efficiency, is simple to operate, and is convenient to clean. It is suitable for a wide range of people, not only elementary school students, but also art students and working people can use it.

Provided is a plastic eraser excellent in safety and environmental pollution resistance and, not detracting from the erasability thereof, further excellent in bleeding resistance and eraser dust gatherability. The eraser comprises a base resin such as a vinyl chloride resin and, as incorporated therein as a plasticizer, a liquid acrylic polymer having a glass transition point (Tg) of not higher than 0° C. The eraser may comprise the liquid acrylic polymer alone or as combined with one or more other plasticizers. Containing the liquid acrylic polymer as a plasticizer, the eraser has excellent bleeding resistance and excellent dust gatherability which could hardly be balanced.

The invention discloses a brush eraser, belonging to a stationery, comprising an eraser, wherein one end of the eraser is connected with a brush; the brush includes a brush plate, one side of the brush plate is provided with bristles, so The other side of the brush plate is connected with the eraser. The beneficial effects of the present invention are as follows: by adopting a brush eraser provided with a brush and an eraser, the left eraser can be recovered and arranged after the eraser is used in time, and the effects of quick finishing and environmental protection are achieved.

The invention relates to a preparation method of an elastic eraser material and belongs to the technical field of stationery and sporting goods materials. The preparation method includes: adopting a mechanical blending method to use thermoplastic polyurethane elastomer to modify butadiene-styrene rubber, blending butadiene rubber with the modified butadiene-styrene rubber to serve as a raw material, combining with auxiliaries like plasticizer epoxy soybean oil, filler white carbon black, stabilizer and lubricant, and performing hot-press forming to obtain the elastic eraser material. Polyurethane is high in hardness and rich in elasticity and has high mechanical strength, oil resistance, ozone resistance and excellent low-temperature performance; the thermoplastic polyurethane elastomer isused to modify the butadiene-styrene rubber, so that the modified butadiene-styrene rubber has elasticity of the polyurethane elastomer; the butadiene rubber has the advantages of high elasticity, high wear resistance, high cold resistance, low heat yield, high deflection resistance and good dynamic performance; by blending the butadiene rubber with the modified butadiene-styrene rubber, the eraser material prepared by the method has high elasticity, and breakage when in use is avoided.

The heating eraser for removing thermally changeable ink comprises a heating eraser unit that removes or changes a color by instantaneously applying heat at 50 to 65° C. as a color changing temperature range of a phase transition material selectively along a handwriting written or drawn by a writing instrument using the thermally changeable ink containing thermally changeable fine particles of 10 wt % to 70 wt % including a core portion containing the transition material including a phenol-based compound containing an aliphatic functional group having carbon atoms of 6 or more and a shell layer covering the core portion and made of a polymer resin on a substrate.

An erasable ink writing instrument comprising a body extending along an axis, the body having a first end and a second end opposed to the first end along the axis, the first end being provided with a writing tip and with an eraser, wherein the writing tip is fed with erasable ink, wherein the writing tip is fixed with regard to the body and the eraser is movable along the axis with regard to the body, and the erasable ink writing instrument further comprising a helical-cam propelling mechanism configured to move the eraser along the axis between a retracted position and a protruding position. The erasable ink is a peelable ink and the eraser is a friction body.

An eraser with a brush comprises an eraser body, wherein the brush is arranged on the eraser body; and the brush is arranged on one side of the eraser body. According to the eraser with the brush, fragment s can be put into a waste paper basket after swept up by the brush, and the eraser is clean, sanitary, attractive, simple in structure and convenient to use.

The invention discloses an eraser device and a method for cleaning chippings. The eraser device comprises a shell body (1), a first gear (2) which is installed on the shell body (1) and partially protrudes out of the shell body (1), and at least one second gear (3) which is installed on the shell body (1) and is in transmission with the first gear (2) in a meshed mode, wherein the first gear (2) comprises first gear teeth (22) used for erasing pencil handwriting, tooth sockets of the first gear (2) and tooth sockets of the second gear (3) are used for containing the multiple chippings generated by erasing the pencil handwriting. The eraser device has the advantages that the structure of the first gear and the second gear is adopted, chippings generated when the first gear teeth erase the pencil handwriting can be absorbed in the tooth sockets of the first gear and the tooth sockets of the second gear respectively, and therefore automatic cleaning of the chippings is achieved. The method for cleaning chippings is simple and convenient.

Ink allowing handwriting to be erased with erasers is prepared from, by weight, 2.5-5 parts of sorbitol, 1.2-2 parts of thickener, 0.5-2 parts of dispersant, 0.2-0.5 part of wetting agent, 0.5-1 part of antirust agent, 0.5-1 part of bactericide, 15-32 parts of pigment powder capable of being erased by erasers, 2 parts of diphenylamine and 55-70 parts of purified water in a mixed mode. Writing with the ink on paper is smooth, handwriting can be erased immediately after being formed, and the ink is adaptable to various kinds of paper for writing and can be erased with erasers to keep the test paper surface clean.

The invention discloses an eraser, comprising an eraser (1). The eraser is characterized in that an oblique slot (11), a straight slot (12) and an arc slot (13) are sequentially arranged in the middle of the eraser (1) from top to bottom. The oblique slot (11), the straight slot (12) and the arc slot (13) are mutually communicated. The eraser (1) is made of rubber. The eraser is simple in structure, good in wiping effect, high in efficiency, low in cost and mainly used for wiping golden fingers of parts such as a memory card, a display card, a sound card and a network card in a computer.

The invention provides a rubber and brush combined pencil. One side of a tail sleeve at the tail end of a pencil holder is provided with a brush, when the pencil is used, wrongly written or mispronounced characters are erased through rubber and then the brush can be directly used for cleaning rubber residues on paper. The rubber and brush combined pencil has the characteristics of reasonable combination mating and convenience for use.