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Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| D582506 | Spinning reel | 12/09/2008 |
| 7444070 | Fan motor with digital controller for applying substantially constant driving current An improved fan arrangement features a radial or diagonal fan (370) with which a direct current motor (32) is associated as its drive motor, further comprising a digital control element (23, 24) which executes a program, for controlling the curr... | 10/28/2008 |
| 7438522 | Fan A fan has an air conveying conduit (16) and a fan wheel (22) arranged therein, which wheel is rotatable about a central axis (25) and is formed with a central hub (20; 120) having an outer periphery (27) on which fan blades (26 | 10/21/2008 |
| 7436386 | Transmission type display device and a method for controlling its display colors An improved transmission type display device features a light source having plural emission colors and means for controlling the chromaticity of display images, and maintaining it with high precision. The device can be manufactured at low cost by easing the spectral... | 10/14/2008 |
| 7427006 | Pipe tensioner machine A pipe tensioner machine for offshore pipelaying operations comprises adjustable tension banks for the transfer of tension to the pipe string. Four tension banks (14, 16, 18 20) are provided in an angle of substantially 90 degrees to each other mounted inside... | 09/23/2008 |
| 7427285 | Keratome with suspended stabilized blade, applanator and guided engagement with keratome cutter head A keratome includes a cutter head with a reciprocating blade and a cutting edge extending below a sole surface of the cutter head, an automated drive unit for powered translational movement of at least the cutter head thereof, and a suction ring adapted to be secure... | 09/23/2008 |
| 7355146 | Heating unit A heating unit for a vehicle features a radial fan (100) having a housing (110), which housing has an air inlet (116) and an air exit opening (118). The heating unit has an air-directing device (140) that guides an air flow in a pr... | 04/08/2008 |
| 7356769 | Method and apparatus for providing inputs to a communication or computing device A miniaturized user input device or input button (14) for a computing or communication device, such as a personal digital assistant device or a mobile phone. A user provides inputs to the computing or communication device by inserting an end (12) of a ... | 04/08/2008 |
| 7352094 | Equipment fan An improved fan useful for ventilating applications in motor vehicles features a modular structure, which facilitates quick replacement of any components likely to fail. A first module (110) is intended for permanent installation on the part that is to be coo... | 04/01/2008 |
| 7319300 | Method of operating an electronically commutated motor, and method for carrying out such a method In this method, the value of a temperature-dependent motor parameter (ke) of an electronically commutated motor (124) is determined during motor operation without a temperature sensor. The motor has a stator (201) having stator phases (20... | 01/15/2008 |
| D557082 | Fishing knife | 12/11/2007 |
| D556702 | Cooling unit | 12/04/2007 |
| 7292028 | Apparatus for sensing the absolute-value angle of a shaft An apparatus serves to sense the absolute value of the rotational position of a shaft (14). The apparatus has a first single-turn rotary encoder (30) that is arranged at one end (20) of the shaft (14) and is arranged to sense the latter's... | 11/06/2007 |
| 7268502 | Method and arrangement for controlling the synchronous running of a plurality of electronically commutated motors A method of controlling synchronous running of a plurality of electronically commutated motors (22, 24, 26), each of which includes a stator having a stator winding (40, 42, 44), a permanent-magnet rotor (28, 30, 32), and at least one arrangemen... | 09/11/2007 |
| 7248588 | Method for transmitting data packets and network element for carrying out the method A method is disclosed for transmitting data packets in wide area networks (WAN) by way of a synchronous digital data transmission network (SDH), wherein the data packets are packed into synchronous transport modules (STM-N) and are transmitted by way of virtual conn... | 07/24/2007 |
| 7242421 | Methods of establishing a communications link using perceptual sensing of a user's presence A method of establishing a communications link uses automatic sensing of a computer user's presence and activity state to record user attributes in a form accessible to other computers in a communications network. Such automatic sensing may include keyboard/mouse mo... | 07/10/2007 |
| 7230359 | Electric motor with poles shaped to minimize cogging torque An electric motor has a rotor (36) and a stator (28) having a lamination stack formed with slots (126). The slots have a predetermined slot pitch (τs), and a multi-phase stator winding is arranged in them. The rotor (36) has salient pole... | 06/12/2007 |
| 7230357 | External rotor motor and method for assembling such a motor A method of rapidly assembling the rotor (22) of an external-rotor motor (20) onto a bearing support tube (70) and in a predetermined axial position relative to the latter, includes the steps of: beginning at a rotor cup portion (24) of t... | 06/12/2007 |
| 7230400 | Electronically commutated motor In an electronically commutated motor (M), rotor position signals are generated by means of a galvanomagnetic rotor position sensor (40). A timer (CNT_HL) brings about an advanced commutation which occurs only once the motor has reached a specific rotation sp... | 06/12/2007 |
| 7211916 | Arrangement with an electric motor An arrangement with an electric motor facilitates mounting of the motor, particularly of a miniature or subminiature motor. The motor (20) has a stator (56), a rotor (24), and a support flange (36) coupled to the motor. A motor mount (... | 05/01/2007 |
| 7205689 | Electric motor with space-saving low-resistance neutral ring A compact electric motor has a rotor, and a stator (10) having a slotted lamination stack (16) defining slots separated by teeth, the teeth having tooth heads (153). Partial windings (17) are arranged on the teeth. On at least one axial e... | 04/17/2007 |
| 7189053 | Fan mounting means and method of making the same A fan arrangement comprises a fan (10) having a fan housing (30) within which is arranged a blower wheel (18) which, in operation, moves air from an intake side of the fan (10) to a delivery side. Arranged radially outside the fan housing... | 03/13/2007 |
| 7186075 | Mini fan to be fixed in a recess of a wall A mini-fan (126) is implemented for installation in a recess (124) of a wall (122), which wall is equipped on the periphery of the recess (124) with a plurality of retaining members (128, 129). The fan has, for air guidance, a hous... | 03/06/2007 |
| D537518 | Fan housing | 02/27/2007 |
| 7162535 | Methods and arrangements for providing efficient information transfer over a limited-speed communications link Methods and arrangements are disclosed for transferring digital data over a limited speed communications link between a client side subarrangement (401) and a server side subarrangement (402). Within the client side subarrangement (401), a clien... | 01/09/2007 |
| 7119504 | Protective circuit for reducing electrical disturbances during operation of a DC motor A protective circuit, for reducing electrical disturbances or interference during operation of a DC motor, features a series transistor (62) arranged in a supply lead from a DC voltage source (12) to a DC motor; an auxiliary voltage source (52),... | 10/10/2006 |
| 7118334 | Fan and fastening element and method of assembling An improved structure and method for mounting a fan, particularly a miniature fan (3), in a supporting wall (4), both facilitates a mounting operation and minimizes noise conduction after the mounting operation. An elastomeric overcoat (1) at le... | 10/10/2006 |
| 7109615 | Electronically commutated internal rotor motor An electronically commutated internal rotor motor (20) has an outer stator (28) and a permanent magnet rotor (36) arranged rotatably therein by means of a shaft (40) supported at its drive end (42) by a rotary bearing (54) l... | 09/19/2006 |
| 7075446 | Method and apparatus for monitoring motor rotation speed The invention concerns a method for generating an alarm signal in a motor which comprises a rotor (50) whose actual rotation speed during operation lies in a normal zone (nSoll, TSoll), can deviate from that normal zone in the event of a fault, and is to be m... | 07/11/2006 |
| 7068191 | Method for determining the numerical value for the duration of a periodically repeated pulse signal, and device for carrying out said method The invention concerns a method for determining a numerical value for the duration of a periodically repeating pulsed signal. This method comprises the following steps: a) at time intervals, the period length of the signal is determined; b) at time intervals, a char... | 06/27/2006 |
| 7049718 | External-rotor motor having a stationary bearing shaft An improved drum motor, preferably electronically commutated, features a unitary stationary central shaft (18) supporting a stationary inner stator (52), and an external rotor (49), including permanent magnets (50), secured to an inner su... | 05/23/2006 |
| 7049776 | Rotor-position sensor assembly and method for detecting a rotor position An electric motor has a stator and an external rotor (40). Its external rotor (40) has a sensor magnet (54) having a plurality SP of sensor poles (55). The motor also has: at least one rotor position sensor (42, 44) for generating ... | 05/23/2006 |
| 7042182 | Electronically commutated motor operable directly from AC power network An electronically commutated motor (10) is adapted to be powered directly by an AC voltage (UAC) source, and comprises a permanent-magnet rotor (18), a stator having at least one winding phase (L1, L2, . . . , Ln), a rectifier ... | 05/09/2006 |
| 7037086 | Self-priming centrifugal pump A self-priming centrifugal pump comprises an inlet and an outlet, and a centrifugal impeller for receiving liquid from the inlet and delivering it to the outlet. An inlet valve and an outlet valve are provided, and a diaphragm arrangement is driven by the same motor... | 05/02/2006 |
| 7023119 | Device comprising a plain bearing A motor, suitable for driving a fan, features a plain bearing (36) that contains ferromagnetic material and serves for radial support of a rotor shaft (34) made of ferromagnetic material. The shaft (34) is arranged rotatably and axially displace... | 04/04/2006 |
| 6997684 | Fan motor with digital controller for applying substantially constant driving current The invention relates to a fan arrangement comprising a radial or diagonal fan (370) with which a direct current motor (32) is associated as drive motor, further comprising a digital control element (23, 24) such as a microcontroller or micropro... | 02/14/2006 |
| 6995534 | Method of controlling the commutation in an electronically commutated motor, and an electronically commutated motor for carrying out said method A method is disclosed for controlling the commutation in an electronically commutated motor (20) which comprises a stator having at least one phase (24, 26), and a permanent-magnet rotor (22), and with which a current limiter (36, 58) and... | 02/07/2006 |
| 6982534 | Method for operating an electronically commutated motor, and motor for carrying out one such method The invention concerns a method for operating an electronically commutated motor (10) that is equipped with a current limiting arrangement which acts on a PWM controller (56). The latter, in operation, delivers PWM pulses (60) having a controlla... | 01/03/2006 |
| 6970093 | Method for configuring the alarm device of an electrical motor and motor for implementing said method If a motor becomes defective, e.g. stops running, runs too slowly, or becomes too hot, many customers demand the generation of an alarm signal, i.e. ask for an alarm device provided on the motor. The following method is used for configuring this alarm signal: At lea... | 11/29/2005 |
| 6967459 | Method for controlling or regulating the current in a direct current machine for a fan The invention concerns a method of regulating the current in a direct current machine with which are associated an arrangement for generating a current target value signal, as well as a PWM generator (FIG. 11: 182) whose output signal (PWM2) is control... | 11/22/2005 |
