Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7898122 | Quick-action bistable polarized electromagnetic actuator The invention relates to an electromagnetic actuator comprised of a mobile assembly, a fixed ferromagnetic stator assembly, at least one electric field coil, and of at least one permanent magnet, having two stable positions of equilibrium without current at its ends... | 03/01/2011 |
| RE41626 | Multiple magnet transducer with differential magnetic strengths A dynamic magnet system, particularly useful for electrical generation, employs multiple magnets in polar opposition to each other for individual movement relative to a support structure. The magnets have a critical angle of displacement from a horizontal static pos... | 09/07/2010 |
| 7372178 | Linear actuator or generator with rods The invention concerns an electrical machine, whereof the active part includes a global solenoid winding (110, 210, 310) for each phase and includes, inside said winding(s), a stack of ferromagnetic or non-magnetic parts (400) and magnetized parts (... | 05/13/2008 |
| 7333783 | Mobile device with manually operated power source A mobile device with a manually operated power source which generates power sufficient to operate the device when shaken by a user. A cable connected between the power source and mobile device carries the generated power from the power source to the mobile device su... | 02/19/2008 |
| 7332846 | Damping device A damping device for damping speed irregularities of a rotating shaft includes an armature having at least one armature part made of a non-ferromagnetic, electrically conductive material. An exciter configured to permeate the armature part in at least some regions w... | 02/19/2008 |
| 7316545 | Reducing agent pump for an exhaust-gas aftertreatment system of an internal combustion engine A reducing agent pump has a pump inlet part and a pump outlet part closing off the pump body at its ends. One or both of the inlet and outlet parts is of two-part construction, with a closure element and another element. The two elements are prestressed relative to ... | 01/08/2008 |
| 7315098 | Linear oscillator and electrically driven toothbrush A linear oscillator and an electric toothbrush capable of emitting a low noise and of being assembled compact are provided. The linear oscillator, which reciprocates a shaft in an axial direction thereof, includes a plunger movable together with the shaft in the axi... | 01/01/2008 |
| 7285868 | Apparatus and method for energy generation within a tire Energy for in-tire use is generated from the load induced reciprocating deflection of the tire inner walls above the tire-to-road contact patch adjacent to the shoulder of the tire. This energy is used to power in-tire monitoring electronics. For pulsatile energy ge... | 10/23/2007 |
| 7285885 | Small motor A small motor including a rotor, a stator, a bearing member which supports the rotor shaft in the radial and thrust direction and a bearing holding member which holds the bearing member. The bearing holding member is formed in a thin plate-shaped elastic member and ... | 10/23/2007 |
| 7259492 | Rotor axial activation modulation of electric machinery due to reverse torque The invention involves installation of a helical nut structure, or a helical nut and ball or roller bearing structure, between an electric machinery transmission shaft and a driven transmission element. Depending on the torque between the electric machinery rotor, a... | 08/21/2007 |
| 7239053 | Vibrator motor A vibrator motor has a stationary piece and a moving piece hinged at one end. The moving piece does not generate substantial internal spring forces under the influence of an electromagnetic field, because it does not have a tail bracket. Other parts of conventional ... | 07/03/2007 |
| 7225770 | Electromagnetic actuator having inherently decelerating actuation between limits An electromagnetic valve actuator system for controlling the operation of a valve in an internal combustion engine comprising a valve having a valve stem with a valve head at one end. The valve is reciprocable along the longitudinal central axis of the valve stem to... | 06/05/2007 |
| 7204581 | Magnetic actuator using ferrofluid slug A magnetostatic actuator uses a ferrofluid slug confined in a cylindrical tube which is wrapped in a conducting coil. By applying a current to the coil, a magnetic field is generated inside the coil. The ferrofluid slug may be attracted to the interior of the coil b... | 04/17/2007 |
| 7202578 | Electromagnetic drive device An electromagnetic drive device comprises a drive part (10) arranged to be reciprocated in the stroke direction (H) and possessing a circular or oval cross section, said drive part having a permanent magnet arrangement magnetized athwart the stroke direction ... | 04/10/2007 |
| 7157821 | Electromagnetic actuator An electromagnetic actuator includes a fixed core supported by a bottom wall of a housing, a movable core arranged opposite to the fixed core via an air gap to drive the movable member, and coil assembly supported by the housing to surround both the cores, wherein t... | 01/02/2007 |
| 7150606 | Electromagnetic fuel pump An electromagnetic fuel pump, including a pump, an electronic control circuit board assembly (PCB) and electromagnetic coil operatively arranged to operate the pump, and, a housing arranged to house the pump and the PCB/coil assembly, the housing including an integr... | 12/19/2006 |
| 7148583 | Electrical power generators The present invention provides methods to convert motion into electrical energy. These electrical power generators are made compatible with standard batteries so that they can support operations of existing battery powered portable appliances with no or minimal modi... | 12/12/2006 |
| 7128032 | Electromagnetic actuator and control An electromagnetic actuator includes a stator assembly mounted to a center pole formed of material having high magnetic permeability and functions as a return path for the magnetic field generated when current is passed through coils in the stator assembly. When cur... | 10/31/2006 |
| 7078833 | Force motor with increased proportional stroke The force motor of the present invention controls the local magnetic field through a uniquely designed mechanical structure of the internal components. The mechanical structure divides the magnetic field in the force motor into three sections. The force produced on ... | 07/18/2006 |
| 7056105 | Unit utilizing current to control reciprocation for pushing fluids A unit utilizing current to control reciprocation for pushing fluids, including a chamber, a magnet, a coil connected with a circuit, a first inlet, a first outlet, a second inlet, a second outlet, a first valve and a second valve. The magnet is slidably disposed in... | 06/06/2006 |
| 7036469 | Bi-directional power electronics circuit for electromechanical valve actuator of an internal combustion engine A bi-directional dual coil half bridge converter adapted to be coupled to a dual coil actuator of a cylinder valve in an internal combustion engine is described. In one example, the converter has a first and second capacitor and a voltage source, where the converter... | 05/02/2006 |
| 7007527 | Electrified cylindrical lock An electrified cylindrical lock having a reversible solenoid that can be easily changed over between active push and active pull. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The coil has ... | 03/07/2006 |
| 7009310 | Autonomous power source An autonomous power source comprises a power harvester mounted on a movable structure. The power harvester includes a coil, a magnet, and a low-friction ferrofluidic bearing in contact with the magnet, arranged such that the magnet and coil move with respect to each... | 03/07/2006 |
| 7003993 | Electrified cylindrical lock An electrified cylindrical lock having a reversible solenoid that can be easily changed over between fail safe and fail secure. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The latch membe... | 02/28/2006 |
| 6972500 | Electromagnetic actuator An electromagnetic actuator includes a fixed core supported by a bottom wall of a housing, a movable core arranged opposite to the fixed core via an air gap to drive the movable member, and coil assembly supported by the housing to surround both the cores, wherein t... | 12/06/2005 |
| 6966760 | Reciprocating fluid pump employing reversing polarity motor A reciprocating pump includes a drive section and a pump section. The drive section has a reciprocating coil assembly to which alternating polarity control signals are applied during operation. A permanent magnet structure of the drive section creates a magnetic flu... | 11/22/2005 |
| 6966761 | Linear compressor with aerostatic gas bearing passage between cylinder and cylinder liner A linear abstract includes a cylinder part and a piston part. A spring connects the cylinder part and the piston part and operates in the direction of reciprocation of the piston part relative to the cylinder part. The piston part includes a radially compliant but a... | 11/22/2005 |
| 6954040 | Method of controlling a reciprocating linear motor A free piston gas compressor comprising a cylinder, a piston reciprocable within the cylinder and a reciprocating linear electric motor derivably coupled to the piston having at least one excitation winding. A measure of the reciprocation time of the piston is obtai... | 10/11/2005 |
| 6936937 | Linear electric generator having an improved magnet and coil structure, and method of manufacture Linear electric generators include stationary windings and armature magnets arranged to reciprocate axially relative to the windings, or stationary magnet structures and movable windings arranged to reciprocate relative to the stationary magnet structures. The armat... | 08/30/2005 |
| 6921983 | Electric generation device A electric generation device and a method for using the same is provided. The electric generation device has a unique configuration that allows the device to generate electrical energy from the natural turbulence of a free body of water. The electric generation devi... | 07/26/2005 |
| 6861772 | Multiple magnet system with different magnet properties A dynamic magnet system, particularly useful for electrical generation, employs multiple magnets in polar opposition to each other for individual movement relative to a support structure. The magnets have a critical angle of displacement from a horizontal static pos... | 03/01/2005 |
| 6853100 | Linear actuator and a pump apparatus and compressor apparatus using same A linear actuator includes a first yoke part, a second yoke part opposing the first yoke part from a direction perpendicular to the axial direction thereof, an intermediate yoke part forming a first gap and a second gap, a coil disposed within a space delineated by ... | 02/08/2005 |
| 6849971 | Drive devices for interrupter units in power supply and distribution switchgear Drive devices for switchgear interrupter units, having movable contact pieces that can be controlled by solenoid drives are described. The drives of the movable contact pieces being controllable by linear motor drives. The interrupter units are realized by vacuum ci... | 02/01/2005 |
| 6812598 | Multiple magnet transducer with differential magnetic strengths A dynamic magnet system, particularly useful for electrical generation, employs multiple magnets in polar opposition to each other for individual movement relative to a support structure. The magnets have a critical angle of displacement from a horizontal static pos... | 11/02/2004 |
| 6809434 | Linear motor The present invention provides an improved design of linear motor as well as an improved control strategy. The design allows for a shorted stator, where the armature magnets are controlled to reciprocate to a greater maximum displacement than for a equivalent conven... | 10/26/2004 |
| 6798090 | Electrical power generation by coupled magnets An electrical generator has a plurality of spaced magnets that move together relative to at least one coil to generate an electrical signal in the coils. Equal numbers of magnets and coils, with equal lengths and spacings between them, are preferably employed. Signi... | 09/28/2004 |
| 6768230 | Multiple magnet transducer A dynamic magnet system, particularly useful for electrical generation, employs multiple magnets in polar opposition to each other and having a critical angle of displacement from a horizontal static position of less than 1 degree, to induce an electrical signal in ... | 07/27/2004 |
| 6737766 | Magnetic actuator and method A method and apparatus for controlling a plunger of a magnetic actuator includes generating a first magnetic flux at the plunger that biases the plunger opposing a first bias from a first spring having a first spring rate. A second spring is disposed in series commu... | 05/18/2004 |
| 6717297 | Electrical machine An electrical machine with at least a machine unit. This machine unit includes a stator, which includes a plurality of magnetic flux conductors, an electric conductor forming a winding extending in a substantially closed winding path through each magnetic flux condu... | 04/06/2004 |
| 6710476 | Electromagnetic reciprocal drive mechanism The invention provides an electromagnetic reciprocal drive mechanism having a movable part that is simple to manufacture, dimensionally stable and inexpensive. The device has; a permanent magnet cluster 3, and a spider 4 and retainer 5 that conc... | 03/23/2004 |
