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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7333128 | Laser shutting device and laser scanning unit employing the same A laser shutting device blocks laser beams in a laser scanning unit that includes a light source that emits laser beams and a beam deflecting unit that deflects the laser beams in a main-scanning direction and is adapted to form an image on a photosensitive body usi... | 02/19/2008 |
| 7189186 | Brake transmission shift interlock actuator A brake transmission shift interlock actuator includes a bobbin that has an open end and a closed end. A plunger is slidably disposed within the bobbin and a plunger rod extends from the plunger. Moreover, a primary plate is installed within the open end of the bobb... | 03/13/2007 |
| 7116017 | Device for reducing deterioration of image quality in display using laser Disclosed is a device for reducing deterioration of image quality which can get rid of speckle by equalizing a laser from a light source on a screen by vibrating a reflective mirror installed between the light source and the screen at a predetermined amplitude. The ... | 10/03/2006 |
| 6954127 | Layered wing coil for an electromagnetic dent remover An electromagnet assembly for supplying a region of concentrated electromagnetic flux is provided. The assembly includes a flat strip of an electrically conductive metal. The strip has a first and a second opposite planar surfaces at least one of which is covered by... | 10/11/2005 |
| 6791443 | Actuator and transducer An actuator comprises a magnet yoke and a carrier member movable relative to the magnet yoke. The magnet yoke has at least one permanent magnet and the carrier member is positioned in the magnetic field produced by this magnet. The carrier member has an auxiliary ma... | 09/14/2004 |
| 6774445 | Actuator The invention aims at suppressing an amount of deformation of a central portion of a movable part in a micro-miniature semiconductor actuator. A boundary portion is provided between a central portion and an edge of a movable part which is axially supported in a rota... | 08/10/2004 |
| 6608541 | Electromagnetic actuator An electromagnetic actuator comprises: a magnet; a pole piece mounted to the magnet; a yoke facing the pole piece; a coil base having a vibration coil; leaf springs for supporting the coil base and a weight; a case for enclosing them; a cover for covering... | 08/19/2003 |
| 6580345 | Switching device A switching device includes a movable coil which is reinforced by a stiffener to increase the resistance of the movable coil to bending moments. The stiffener may include a nonmagnetic case which surrounds the movable coil. Alternatively or in addition, i... | 06/17/2003 |
| 6404313 | Electromagnetic actuator An electromagnetic actuator includes an external movable plate formed integrally with a semiconductor substrate. A first torsion bar movably supports the movable plate with respect to the semiconductor substrate. An internal movable plate is disposed insi... | 06/11/2002 |
| 6353376 | Switching assembly A switching assembly includes a switch portion having a fixed electrode and a movable electrode which are separable, a movable portion secured between a movable shaft connected to the movable electrode and a movable coil by a magnetic body, and a fixed po... | 03/05/2002 |
| 6232861 | Electromagnetic actuator An electromagnetic actuator for driving a movable plate equipped with an optical element such as a mirror on the basis of the operation principle of a galvanometer. The structure of the movable plate is simplified, and a driving coil and a wiring are form... | 05/15/2001 |
| 6225564 | Coil turn insulation system for high voltage machines An electrical insulation system for the turns of multiturn stator coils, found in the windings of high voltage hydroelectric generators and other dynamoelectric machines, having only one of the outer strands of each turn insulated with mica with the remai... | 05/01/2001 |
| 6011455 | Wall surface absorption type moving device and magnet driving method of the wall surface absorption type moving device A wall surface attraction type moving apparatus travels on a magnetic wall surface of a large iron structure for maintenance, inspection and other purposes. The apparatus includes a moving body movable on the wall surface, front and rear wheels, permanent... | 01/04/2000 |
| 5912608 | Planar type electromagnetic actuator The present invention relates to a planar type electromagnetic actuator of two axis construction, having two movable plates (12A, 12B) with pivotal supports at right angles to each other. A pair of static magnetic field generating devices (4, 5) are arran... | 06/15/1999 |
| 5825270 | Electromagnetic solenoid The solenoid body of an electromagnetic solenoid having a pair of coil terminals to which an exciting coil is connected is movable together with a stopper plate in the direction of the arrow X and in the direction opposite to the direction of the arrow X ... | 10/20/1998 |
| 5631505 | Moving coil linear actuator A moving coil linear actuator including an elongated permanent magnet having a cross-sectional width substantially greater than its edge height and having an elongated length of soft magnetic material disposed along one or both edges of the permanent magn... | 05/20/1997 |
| 5548263 | Electromagnetically actuated valve An electromagnetically actuator is disclosed having an electromagnet, a core element, the core element having a normally biased initial spaced apart first position distal from the electromagnet when the electromagnet is off and a second stop position prox... | 08/20/1996 |
| 5394132 | Magnetic motion producing device A motion producing device in the form of a linear actuator, circular pump, or a robotic or prosthetic limb which functions to produce many kinds of work is provided. The device includes a linear series of alternately spaced fixed and polarity reversible m... | 02/28/1995 |
| 5323134 | Solenoid device A solenoid comprising a first coil positioned within a frame from which a magnetizable armature, having a coil end and a free end, extends, the coil end of the armature having a section of non-magnetizable material secured to it, and a second coil, which ... | 06/21/1994 |
| 5200728 | Solenoid device An improved solenoid wherein the end of the armature within the first coils has a predetermined length of rigid non-magnetizable material secured to it, and a second, electrically energizable coil being energizable in a manner opposite to that of the firs... | 04/06/1993 |
| 4992766 | Linear actuator In a linear actuator provided with a first projection on a movable part which is linearly driven with the electromagnetic force, so as to engage with one end of a compressing coil spring, and/or a second projection on a stationary part as opposed to the m... | 02/12/1991 |
| 4910486 | Electromagnetic drive actuator An electromagnetic drive actuator including a magnetic circuit comprising at least one yoke having plate-shaped, L-shaped, E-shaped cross section or the like, at least one magnet mounted on the yoke and a magnetic flux extending from the magnet to the yok... | 03/20/1990 |
| 4909980 | Electromagnetic apparatus for positioning objects located behind a conductive wall Apparatus for repositioning garter springs around the pressure tubes of Candu-type nuclear reactors. A primary coil having a high permeability core is inserted into the pressure tube. The coil is energized by an alternating current of a frequency and ampl... | 03/20/1990 |
| 4902996 | Movable coil driving unit A movable coil driving unit comprises a driven member movably supported by conductive flexible supporting members with respect to a fixed member, a coil fixed to the driven member, and a driving member provided with a power source. One ends of the support... | 02/20/1990 |
| 4698608 | Variable force linear actuator A linear electromechanical actuator having a variable drive force. The actuator includes a moving coil which moves along a stroke path in response to an input current. A magnetic circuit provides a magnetic flux through which the coil is driven. The flux ... | 10/06/1987 |
| 4602232 | Electromagnetic drive unit In an electromagnetic drive unit including; a nearly E-shaped yoke having first and second concentric circular arc shaped side yokes respectively inside and outside an arc-shaped center yoke, a first arc-shaped permanent magnet fixed to said first side yoke so... | 07/22/1986 |
| 4460253 | Electromagnetically driven diaphragm device In the disclosed diaphragm device, an electromagnetic unit is composed of two opposing sets of circularly arranged magnets poled so that opposing surfaces have the same polarity, a rotary member carrying an electromagnetic coil that moves the rotary membe... | 07/17/1984 |
| 4367931 | Electromagnetically driven diaphragm device In the disclosed diaphragm device, an electromagnetic unit is composed of two opposing sets of circularly arranged magnets poled so that opposing surfaces have the same polarity, a rotary member carrying an electromagnetic coil that moves the rotary membe... | 01/11/1983 |
| 4279520 | Print mechanism for wire printer A print mechanism for a wire printer has a robust single-turn closed-loop transformer secondary winding as the moving part for driving a print wire into and out of a print position. Each secondary winding threads a transformer core on which is wound a mul... | 07/21/1981 |
| 4236130 | Solenoid actuator having a long stroke A solenoid comprises an electric coil having an opening through it and an armature of permeable material having in fixed relative relationship a core passing through the opening of the coil and a sleeve surrounding the coil. The armature is unmagnetized e... | 11/25/1980 |
| 4145725 | Electromagnetic actuator An actuator comprising a transformer having a fixed primary winding on a magnetic core and a pivotally movable coil linked with the magnetic core and forming a secondary winding of the transformer. A permanent magnet generates a static magnetic field in w... | 03/20/1979 |
| 4105904 | Electromagnetic actuators An electromagnetic device comprises first and second relatively movable support members having surfaces presented to each other, electrical conductors mounted on the surfaces respectively, each of said conductors defining a portion disposed in side by sid... | 08/08/1978 |
