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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 |
| 7895702 | Windshield wiper system with a self-locking device that is active when the wiper drive is in a non-operating state In order to ensure, when the drive (1) is in a non-operating state, a self-locking that counters a change in position of the wiper (5), an electronically implemented self-locking is provided. To this end, the controller (S) of the wiper system monitors... | 03/01/2011 |
| 7707680 | Drive device for window wipers with a parking position switch The device comprises an output gearwheel (6), a gear cover (4) having a plastic sleeve open toward the output gearwheel (6) and a park position switch having first contacts mounted for rotation and second contacts fixed to the gear cover (4 | 05/04/2010 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7352073 | Ocean wave energy converter having an improved generator and ballast control The ocean wave energy converter uniquely includes a generator with a rotating inner rotor surrounded by a counter-rotating outer rotor for generating electricity. A reciprocating drive rod drives the inner rotor on the downstroke of the drive rod and the outer rotor... | 04/01/2008 |
| 7309970 | Windshield wiper de-ice function using HVAC switch position A vehicular windshield wiping apparatus has a temperature sensor for sensing temperatures outside of the vehicle, a humidity sensor for sensing humidity outside of the vehicle, windshield wipers moved by a motor, an HVAC control module, and a wiper control module. T... | 12/18/2007 |
| 7256565 | Wiper system using two wipers A wiper system using two wipers and two wiper motors, which drive the wipers and of which at least one first wiper motor forms a sub-assembly with an electronic control unit. The second wiper motor is a rotary motor having only one sensory system for detecting the a... | 08/14/2007 |
| 7165401 | Turbocharger with wastegate This invention relates to an actuator assembly for a turbocharger pressure control valve assembly and a method of assembling a pressure control assembly of a turbocharger. The assembly comprises an actuator coupled to an actuator rod which in use is coupled to the v... | 01/23/2007 |
| 7024722 | Fixing device for a windscreen wiper system The invention concerns a fastening for a windshield wiper system on a vehicle body, in particular for motor vehicles, whereby the windshield wiper system is composed of a premanufactured assembly having at least one fastening site arranged on it. It is provided that... | 04/11/2006 |
| 7000283 | Wiper drive The invention is based on a wiper drive having a reversible geared motor, which is secured to a wiper mounting and on whose power takeoff shaft (12) a motor crank (14) is seated that is connected via at least one joint (16) to a lever gear which... | 02/21/2006 |
| 6966095 | Linear-tracking windshield wiper system for wiping a rectangular field A system for wiping a windshield of a vehicle in a rectangular field, comprising a wiper arm, a wiper blade assembly operationally attached to the wiper arm, and means for rotating and translating the wiper arm to cause said wiper blade assembly to track in a linear... | 11/22/2005 |
| 6958585 | Windshield wiper system activated by sensing rainwater A windshield wiper system activated by sensing rainwater via a rain sensor placed inside the wiping pattern when a multifunction switch lever is in automatic mode. A rain sensor module activates a relay for low speeds and/or a relay for high speeds depending on the ... | 10/25/2005 |
| 6864655 | Rain sensor, in particular for a motor vehicle having a window-wiper device, and method for controlling a windshield-wiper device A rain sensor, in particular for a motor vehicle including a window-wiper device (windshield-wiper device), including a measuring element, which has a sensitivity that is predefinable by a control device, a signal, characterizing the speed of the motor vehicle, bein... | 03/08/2005 |
| 6819067 | Contact washer system and method for controlling a windscreen wiper motor The present invention relates to a contact-disk system including a control unit, a rotatable contact disk and a plurality of contact elements, the contact disk having a plurality of paths and each contact element being associated with one path. The paths have electr... | 11/16/2004 |
| 6425160 | Intermittent driving apparatus for rotary window cleaner An intermittent driving apparatus for a rotary window cleaner comprises a first wiper (2) which is connected to a rotating shaft (10) of a first motor (8) and is rotatably disposed on a front window (1), a second wiper (3) which is connected to a rotating... | 07/30/2002 |
| 6351088 | Non-reversing wiper park switch for wiper drive apparatus A wiper drive apparatus includes a drive gear rotated by a motor, a lead frame carried on a cover attachable to the motor or motor gear and including a circumferentially of discrete conductive traces, and a park switch bridge rotatably mounted on the cove... | 02/26/2002 |
| 6307341 | Wiper driving apparatus for vehicles A wiper driving apparatus for vehicles capable of preventing the temporary standstill and overrun phenomenon of wiper blades. The apparatus includes the wiper blades which receive a driving force from a driving lever rotated by a rotating force of a wiper... | 10/23/2001 |
| 6306220 | Windshield wiping device for vehicles A wiper device for vehicle windows is proposed, which prevents a longer lasting or permanent deformation of an elastically deformable wiper lip (28) that is formed onto the wiper blade (16) since this wiper lip (28) is stored in different parking position... | 10/23/2001 |
| 6263537 | Drive controlling apparatus for rotary window cleaner A drive controlling apparatus for a rotary window cleaner comprises an elevating motor for moving up and down two wipers, which are provided on a front window so as to be close to each other, to a storage position and a start position, a first motor for r... | 07/24/2001 |
| 6124691 | Moisture sensor with pre-demodulation gain and high-order filtering A moisture sensor for detecting moisture on the surface of a transparent material. The moisture sensor includes one or more emitters for producing moisture sensing signals which are influenced by moisture on the transparent material, and one or more detec... | 09/26/2000 |
| 6121738 | System for controlling a windscreen/rear screen wiper Proposed is a control device (50) for a windshield wiper that serves in actuating a further window wiper. The control device (50), having an inventive embodiment, includes a control (18), whose signal output (20) provides first control signals (42) for ac... | 09/19/2000 |
| 6111378 | Window wiper motor system for an automotive vehicle A window wiper motor system for an automotive vehicle includes an incremental wiper position detection device. A window wiper feedback pattern is disposed on a stationary circuit board mounted within a gear enclosure with its electronic components facing ... | 08/29/2000 |
| 6020704 | Windscreen sensing and wiper control system An apparatus for detecting moisture on the windscreen of a motor vehicle has an illumination source and a light sensor mounted within the motor vehicle. The light sensor detects light rays from the light source reflected off the windscreen via a diffusion... | 02/01/2000 |
| 6011369 | Device and method for controlling windscreen wipers Windshield wiper mechanism and method for precisely placing a wiper in each reversing position during wiper operation. The local wetness conditions on the windshield after deactivating the motor are taken into account from braking until reaching the rever... | 01/04/2000 |
| 6002323 | Audible feedback apparatus for indicating operation and position of a movable element The present invention provides an element being driven by an electromagnetic device. According to the invention, the element is in mechanical communication with a noise producing device which produces noise by mechanical means. Therefore, the noise produc... | 12/14/1999 |
| 5983439 | Windshield wiper assembly having a variable speed drive mechanism A windshield wiper drive mechanism which interconnects a motor and a wiper assembly which is movable between an in-wipe position and an out-wipe position on a windshield. The drive mechanism includes an elliptical gear set having a pair of eccentric gears... | 11/16/1999 |
| 5909096 | Control system for a vehicle screen wiping apparatus A screen wiping apparatus, in particular for an opening window of a motor vehicle, comprises an electric motor which drives at least one screen wiper in oscillating motion between two reversal positions, namely a fixed inner stop position and a fixed oute... | 06/01/1999 |
| 5896018 | Device for operating a windshield wiper A device for operating a windshield wiper with an automatic wiper control. A fast reaction to a suddenly occurring heavy wetting event is assured without adversely affecting the sequence of intermittent wiper operation. This is achieved by an evaluation u... | 04/20/1999 |
| 5892343 | Windshield wiper arrangement A windshield wiping arrangement with at least one wiper arm (11) is disclosed, which is operated by an electromotor (10) with reversible rotational direction. A time determination device (19) is provided, which determines the time (Tn ; Tn... | 04/06/1999 |
| 5860185 | Reversing wiper motor system A windshield wiper system and method comprising a controller which cooperates with a single sensor positioned in fixed relationship to a target situated on an armature of a drive motor which is driven in response to the controller. The wiper motor is a re... | 01/19/1999 |
| 5826295 | Windscreen wipers A straight line wiper of the kind where a belt or chain drive (1) on two pulleys or gear wheels (2, 3) and driven by a motor (10), drives a wiper (4, 5) along a straight line path driven by movement of the upper flight of the belt (1) in one direction and... | 10/27/1998 |
| 5818187 | Motor and control for windshield wiper system The invention concerns an improved system for windshield wipers in vehicles. An induction motor is used, in which speed is accurately controlled by controlling frequency of power supplied to the motor. The induction motor may be of the consequent-pole typ... | 10/06/1998 |
| 5811950 | Intermittent windshield wiper with wipe after wash An intermittent windshield wiper system achieves a substantial wipe event at the end of a wash cycle during intermittent operation. The innovative wiper system includes gear reducing box for reducing the oscillation rate of the wipers below the rotation r... | 09/22/1998 |
| 5760557 | Variable interval control device An improved interval control device comprising a timing device; a memory unit; trigger button actuable, a first time, by the user to initiate operation of the desired mechanism and to start said timing device to determine the duration of operation of said... | 06/02/1998 |
| 5757155 | Apparatus for controlling a system, such as a vehicle screen wipingsystem, based upon modification of a command signal, and a method of controlling same The present invention relates to a method of governing a system such as a vehicle screen wiping system. It also relates to a governing apparatus for performing the method of the invention, and to a governed system of the simultaneous or synchronized type,... | 05/26/1998 |
| 5691612 | Windshield wiper control Harsh full voltage conductive switching action is removed from a commutator-type rotary switch integral with a motor assembly and is placed in relay contacts external to the motor assembly by controlling reduced current through the rotary switch to the re... | 11/25/1997 |
| 5672946 | Control system and method for vehicle speed-response type intermittent wiper This invention relates to a control system and method for a vehicle speed-response type intermittent wiper. An operation time interval for the wiper, which serves to wipe a window of a vehicle, is set in accordance with a speed of the vehicle to drive the... | 09/30/1997 |
| 5648707 | Intermittent windshield wiper system An intermittent windshield wiper system includes a wiper control module and a wiper switch which allows an operator to set a time delay between consecutive wipes of a windshield wiper. The wiper switch includes an input setting that allows an operator to ... | 07/15/1997 |
| 5619886 | Operable angle adjusting structure for wiper An operable angle adjusting structure for a wiper produces a maximally wide wiping angle is realized within the range where wiper arms will not interfere with window pillars and each other and will not require a precision machining apparatus. A drive link... | 04/15/1997 |
| 5512806 | Device for controlling the function of an electric starting motor for a windshield wiper of the rear window which opens on an automotive vehicle A device is described for controlling the operation of an electric motor for driving the arm of a windshield wiper of an opening window, particularly the rear window of an automotive vehicle. The device has a control unit for supplying power to the motor.... | 04/30/1996 |
| 5315735 | Opposed roller-type motor vehicle windshield wiper A motor vehicle windshield wiper is disclosed having two spaced wiping rollers bilaterally attached to a windshield and reciprocated by a belt drive assembly over the windshield between a transverse top rail and a transverse bottom rack by means of the co... | 05/31/1994 |