AURORA OFFICE EQUIPMENT CO., LTD. SHANGHAI Patent applications |
Patent application number | Title | Published |
20150076260 | SAFETY SHREDDER WITH MECHANICAL BIN-FULL DEVICE - A mechanical bin-full device for a paper shredder with a bin, having a curved, perforated T-blade sensor on a cylindrical body partially covered with a metal sheet. The T-blade is pendent into the bin. Metal contacts are placed on the paper shredder near the metal sheet, forming a switch, which is coupled to a motor control circuit for the shredder motor. The T-blade is pushed by paper shreddant and rotates the cylinder body as paper shreddant fills the bin. When the bin becomes full, the T-blade is positioned so that the metal contacts touch the metal sheet, closing the control circuit switch, and causing the motor to cease operating. The control circuit can include a microcontroller coupled to the motor, or a transistor-based driver coupled to a motor relay. | 03-19-2015 |
20140034766 | COOLED MOTOR FOR A PAPER SHREDDER - A paper shredder motor cooling assembly having a paper shredder motor coupled to a fan shaft, an enclosure surrounding the paper shredder motor and having selected input and selected output vents to control airflow to the paper shredder motor, a fan coupled to the fan shaft, communicating with the selected input vents or the selected output vents; when the paper shredder motor is operating, the rotor shaft turns the fan to generate a differential air pressure between the selected input vents and the selected output vents, removing heat from the motor. A duty cycle of greater than 15 minutes is obtained. The fan can be coupled to the motor by speed increasing gearing, attached to the cutter blade assembly, such that the fan turns faster than the motor. The fan also can be attached to the motor shaft. An input fan and an output fan can be used. | 02-06-2014 |
20130140386 | THICKNESS DETECTING SAFETY SHREDDER - A thickness detecting system for a paper shredder having a lever arm extending into the shredder's throat. One or more sensors may be in communication with the lever arm and configured to measure the rotation of the lever. A first maximum thickness and second maximum thickness may correspond to the paper inserted into the throat before and during shredder, respectively. Circuitry may reverse the motor when the thickness is exceeded to ease the removal of the paper and to prevent further shredding. A touch structure and the preferential power supply switch may be used to engagingly interact with each other, so that the motor can be switched off when the plate is selectively positioned to close the paper feed opening, can be switched on when the plate is selectively positioned to open the feed opening, and can be switched off when unexpected items are introduced into the feed opening. | 06-06-2013 |
20130037639 | WASTE BIN LEVELING SYSTEM FOR A PAPER SHREDDER - A paper shredder having a ventilation fan; a ventilation duct tightly coupled to the ventilation fan; and air openings on the ventilation duct to blow air so that the natural fall of paper waste is disturbed. The air openings are on the ventilation duct blow air generally sideways or generally angularly to the natural fall of paper waste. The ventilation fan intake is proximate to and provides supplemental cooling air flow to, a shredder motor. A lower lid is generally above the waste bin, wherein the air openings are disposed to blow air. The shredder motor is on the lower lid. A ventilation fan intake is proximate to a shredder motor and tightly coupled to the ventilation fan, the ventilation fan intake provides supplemental cooling air flow to the shredder motor, and the air openings are on the ventilation duct blow air angularly to the natural paper waste fall. | 02-14-2013 |
20130037637 | DEPOWERED STANDBY PAPER SHREDDER AND METHOD - Apparatus and method for a power-saving shredder, including motorized shredder blades; a shredder controller coupled to the motor controller; a timer coupled to the motor controller, and a mechanically-actuated switch (GREEN SWITCH) couples to the shredder controller. The GREEN SWITCH causes the shredder controller, the motor controller, the motorized shredder blades, and the timer to be activated. The Normally Off switch, when deactuated, causes motorized shredder blades to deactivate. A method of operating a paper shredder includes operating a mechanical actuation switch ON; applying power to paper shredder electrical and electronic elements by operating the mechanical actuation switch; setting a timer for a predetermined active period; operating motorized paper shredder blades by operating the mechanical actuation switch ON; operating the mechanical actuation switch OFF; counting by the timer the predetermined active period; and if the predetermined active period has expired, removing power from the paper shredder electrical and electronic elements. | 02-14-2013 |
20120280580 | COOLED FRACTIONAL-HORSEPOWER MOTOR - Cooling apparatus and methods for a fractional-horsepower motor. Motor cooling apparatus includes a heat shoe, a heat diffuser, and a heat pipe coupled therebetween. The heat shoe is configured to partially cover a portion of, and to receive motor thermal energy from, the motor. The heat pipe is coupled to the heat shoe, and is configured to convey the motor thermal energy from the heat shoe. Heat diffuser can be coupled to receive motor thermal energy from the heat pipe. It is configured to diffuse at least a portion of the motor thermal energy into an ambient atmosphere. A thermal sensor is coupled to the motor and configured to sense a motor thermal condition; and a fan can be coupled to the thermal sensor through a controller. The controller is configured to control the speed of the fan relative to the motor thermal condition sensed by the thermal sensor. | 11-08-2012 |
20120274256 | COOLED MOTOR - A motor having a first portion configured to turn in a forward direction, a second portion coaxially mirrors the first portion; and a central fan between the first and second portions, and forcing air through the portions. A thermoelectric cooler element, thermally coupled to the portion is configured to cool the motor. A motor controller is electrically coupled to the first and second portions, and operates a portion in response to a condition sensed by the motor controller. The condition sensed by the motor controller is a motor torque, a motor speed, a motor casing temperature, or a zoned motor casing temperature. A method includes detecting a motor operational command; selecting a motor operational state using motor portion responsive to the motor command; sensing a heating state of a motor portion; and providing a cooling state to the motor portion responsive to the heating state. | 11-01-2012 |
20110316356 | PAPER SHREDDER CONTROL SYSTEM RESPONSIVE TO TOUCH-SENSITIVE ELEMENT - The invention is directed to a touch-sensitive paper shredder control system. The touching feature is implemented through a series of electronic circuits, taking input from a conductive touch panel on the shredder feed throat, processing the signal, and through a motor driving circuit, stopping the mechanical parts of the shredder. The system has a touch detection circuit unit, which contains a bioelectricity controlled switching circuit to sense the conductive touch panel. The bioelectricity controlled switching circuit is configured to trigger a ground switching circuit in the touch detection circuit unit which outputs to a multifunction control circuit unit. The control circuit unit then takes care of the remaining protection issues. The touching device for paper shredders protects humans and other living beings including pets from injuries through automatic and real time monitoring. The complete control process is both safe and sensitive. | 12-29-2011 |
20110133008 | PERMITTIVITY-BASED PAPER SHREDDER CONTROL SYSTEM - The invention is directed to a permittivity-based paper shredder control system. The touching feature is implemented through a series of electronic circuits, taking input from a conductive touch panel on the shredder feed throat, processing the signal, and through a motor driving circuit, stopping the mechanical parts of the shredder. The system has a touch detection circuit unit, which contains a bioelectricity controlled switching circuit to sense the conductive touch panel. The bioelectricity controlled switching circuit is configured to trigger a ground switching circuit in the touch detection circuit unit which outputs to a multifunction bioshield controller. The bioshield controller then takes care of the remaining protection issues. The touching device for paper shredders protects humans and other living beings including pets from injuries through automatic and real time monitoring. The complete control process is both safe and sensitive. | 06-09-2011 |
20110039478 | GRINDING COMPOSITION FOR SHARPENING SHREDDER BLADES, GRINDING SHEET AND GRINDING PRODUCT MANUFACTURED, AND RELATED MANUFACTURING PROCESS - A grinding composition for sharpening shredder blades of a shredder includes, based on total weight of the grinding composition, from 51 to 65 wt % of a grinding powder; from 5 to 35 wt % of a viscous grease agent; and from 3 to 30 wt % of at least one functional additive. A grinding sheet formed from the composition is used as a grinding product alone or in a bag. The composition is sealed in a bag and used as a grinding product. A process for manufacturing the latter grinding product employs an automatic form-fill-seal packaging machine. The shredder blades of a paper shredder are sharpened satisfactorily by the grinding composition as the grinding sheet or grinding product is shredded. The useful life of shredders is cost effectively extended while providing convenience in use that saves time and labor. | 02-17-2011 |
20100270404 | TYPE PROTECTION DEVICE FOR SHREDDERS - The present invention relates to a new type protection device for shredders which comprises a paper number detecting device mounted at the paper inserting passage of the shredder, a warning device mounted on the shredder and a controlling device in line connection with the paper number detecting device and the warning device respectively, mounted in the shredder and in line connection with the driving component of the shredder driving the shredder blades, preferably the protection device further comprises an insert detecting device in line connection with the controlling device and mounted at the paper inserting passage, and at least one opaque shielding component mounted at the paper inserting passage and at the middle of which there is at least one slot along the length direction, the present invention controls the number of the paper to be shredded during the paper inserting stage, and shreds paper automatically only in a predetermined value range, to avoid abnormalities that result in failure of the machine such as jam and tooth breaking when the shredder is shredding many pieces of paper, so as to reduce maintenance times and cost, extend service life, and make application of shredders safer and more reliable, more convenient and simpler, then to achieve better protection of shredders. | 10-28-2010 |
20100187342 | NEW-TYPE DUAL-PASSAGE PAPER FEEDING SAFETY STRUCTURE FOR SHREDDERS - The present invention relates to a new-type dual-passage paper feeding safety structure for shredders comprising a shredder upper lid, a dual-passage paper feeding safety cover plate and a touch safety switch, touch components are arranged on the dual-passage paper feeding safety cover plate, the shredder upper lid has a paper inlet corresponding to the dual-passage paper feeding safety cover plate and above the set of paper shredding blade shafts of the shredders, the dual-passage paper feeding safety cover plate is arranged in the paper inlet, the middle parts of two ends of the dual-passage paper feeding safety cover plate is connected rotatably with the shredder upper lid, the touch safety switch is fixed inside the shredder upper lid and cooperated with the touch components so that the touch components would touch the touch safety switch when the dual-passage paper feeding safety cover plate is rotated to open and work, more preferably, the middle parts of two ends of the dual-passage paper feeding safety cover plate are pivoted with the shredder upper lid, the touch components are touch cams, a working and stand-by limiting structure is also included, and the dual-passage paper feeding safety cover plate further has a disc feeding passage at its middle part, therefore the new-type dual-passage paper feeding safety structure for shredders of the present invention is designed dexterously and convenient to use, and has a high safety and economy. | 07-29-2010 |
20100163663 | NEW-TYPE THIN SHREDDER BLADE HAVING BLADE POINTS WITHOUT STEPS, BLADE SETS AND MANUFACTURING METHOD THEREOF - The present invention provides a new-type thin shredder blade having blade points without steps, comprising at least one blade body and at least one cutting part that is located on the periphery of the blade body and includes a blade point, wherein the cutting part further comprises a protrusion which protrudes from the cutting part and includes a top, a inclined plane extends between the top and the blade point, and an acute angle is formed by the inclined plane and the blade body, preferably, the inclined plane is an inverted triangle, the cutting part further includes a first hemline and a second hemline extending respectively from the blade body and intersecting to the blade point, a first plane extends between the top and the first hemline and intersects with the inclined plane, the blade body includes at least one large protrusion which protrudes in the same direction as the protrusion, the blade sets formed by the above-mentioned new-type thin blades and the manufacturing method of the above-mentioned new-type thin blades are also provided, with the blade sets formed by the new-type thin shredder blade having blade points without steps of the present invention, the shredder can reduce the production cost and the energy consumption greatly, while meet the same cutting requirement of the common shredder entirely. | 07-01-2010 |
20100116916 | Touch-Sensitive Paper Shredder Control System - The invention is directed to a touch-sensitive paper shredder control system. The touching feature is implemented through a series of electronic circuits, taking input from a conductive touch panel on the shredder feed throat, processing the signal, and through a motor driving circuit, stopping the mechanical parts of the shredder. The system has a touch detection circuit unit, which contains a bioelectricity controlled switching circuit to sense the conductive touch panel. The bioelectricity controlled switching circuit is configured to trigger a ground switching circuit in the touch detection circuit unit which outputs to a multifunction control circuit unit. The control circuit unit then takes care of the remaining protection issues. The touching device for paper shredders protects humans and other living beings including pets from injuries through automatic and real time monitoring. The complete control process is both safe and sensitive. | 05-13-2010 |
20100044484 | PINS OR STAPLES REMOVABLE STRUCTURE OF AUTOMATIC SHREDDERS - The present invention relates to a pins or staples removable structure of automatic shredders which comprises a shredder core, a paper press board assembly and a paper support board assembly fixed to the shredder core and arranged cooperatedly, and a clamping device, the paper support board assembly comprises a paper support board and a pick-up mechanism mounted to the paper support board, the clamping device is fixed to the paper press board assembly and the shredder core/the paper support board respectively, for clamping the paper to be shredded to the paper support board during the process of shredding paper, the paper support board has a paper inlet above the blade assembly of the shredder core, the distance between the outer end of the paper support board and the outer end of the pick-up mechanism for clamping the paper to be shredded is less than the length of the whole paper to be shredded, the pins or staples removable structure of automatic shredders further comprises a magnet positioned in the outer end of the paper support board, then the present invention, cooperated with the shredding structure of automatic shredders, can remove automatically pins or staples of paper having pins or staples mixed in a stack of paper, to achieve shredding paper in batches, has a high degree of automation, can be used conveniently, is designed dexterously, and has a concise structure and an economical cost. | 02-25-2010 |
20100032507 | AUTOMATIC SHREDDER WITHOUT CHOOSING THE NUMBER OF PAPER TO BE SHREDDED - The present invention relates to an automatic shredder without choosing the number of paper to be shredded which comprises a shredder core and an automatic paper feeding device, the automatic paper feeding device comprises a driving mechanism, a paper support box, a pick-up mechanism and a paper press box, the driving mechanism is fixed on the shredder core and connected with the pick-up mechanism for driving the pick-up mechanism, the paper support box comprises a first zone and a second zone, the pick-up mechanism is positioned between the first zone and the second zone and fixed to the paper support box, and its paper feeding direction is towards the second zone, one end of the paper press box is pivoted with the paper support box, the other end of the paper press box is connected detachable with the paper support box, the paper support box is fixed on the shredder core, and the second zone has a paper inlet positioned above the blade assembly of the shredder core, a magnet is positioned in the first zone, the automatic shredder further comprises an elastic paper press and retaining device mounted inside the paper press box and extending to the first zone, the magnet corresponds to the elastic paper press and retaining device, so the present invention can deal with a very large amount of paper to be shredded at one time, has a simple and convenient operation, is designed dexterously, and has a concise structure and a economical cost. | 02-11-2010 |