Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7316419 | Damped steering assembly A steering column for a motor vehicle includes upper steering-column portion, a lower steering-column portion, and a damping body for coupling the upper and lower steering-column portions, with piezoelectric elements being integrated in the damping body. These piezo... | 01/08/2008 |
| 7312559 | Stator and ceramic tube type ultrasonic motor using the same The present invention relates to a ceramic tube type ultrasonic motor having a stator including a tube-type elastic body that is formed of a ceramic material; and a plurality of piezoelectric diaphragms that are attached on the outer peripheral surface of the elasti... | 12/25/2007 |
| 7243894 | Mount for vibratory elements The invention is a mounting system for a vibrational element. The vibrational element has a longitudinal axis, an outer surface and an axial displacement node. The mounting system includes an isolation member which has an isolation surface, an isolating body, and an... | 07/17/2007 |
| 7158330 | Method and apparatus for servo track writing by track following on a dedicated servo disk on a fluid spindle bearing What is disclosed is a method and apparatus for writing servo information on disks to be used in a hard disk drive assembly. In one embodiment, servo information is pre-written onto a disk using an offline servo track writer which employs a fluid dynamic bearing spi... | 01/02/2007 |
| 7102245 | Integral generator/pinion assembly for axle power generation A vehicular axle assembly includes an electrical generator for generating electricity to supply power to one or more electrical components therein during operation. The axle assembly includes a hollow housing that rotatably supports a differential mechanism therein.... | 09/05/2006 |
| 7012989 | Multiple grooved x-ray generator An X-ray tube has a metal-ceramic envelope having rotatably mounted therein an anode disk, which may be axially translatable and provided with a peripheral rim surface wherein a focal track spiral groove (or multiple annular grooves) is disposed. The groove(s) inclu... | 03/14/2006 |
| 6975484 | Selectively stiff FDB bearing for better servo write Hard disk drive track density is increased by selectively increasing the stiffness of a fluid dynamic bearing (FDB) motor during servo write. Applying a load to the shaft of a fixed shaft FDB motor to close the bearing gaps increases stiffness. Alternatively, the di... | 12/13/2005 |
| 6971802 | Bearing preload cage assembly A bearing preload cage assembly for rotatably supporting an axially loaded shaft includes a bearing housing including stationary axially opposed supporting members, first and second axially spaced bearings, each including inner and outer races and rolling elements, ... | 12/06/2005 |
| 6936951 | Smart sonic bearings and method for frictional force reduction and switching An ultrastiff precision sonic bearing assembly and method thereof for controlling an effective coefficient of friction between two elements in slidable contact configured along an interface under a force sufficient to maintain contact and having static friction ther... | 08/30/2005 |
| 6588932 | Air bearing between a first and second object A device has a first object and a second object each with an at least partially parallel surface facing the other. The device also has an oscillator for creating an oscillation of a medium between the first and second objects to generate an air bearing be... | 07/08/2003 |
| 6520678 | Vehicle center bearing assembly including piezo-based device for vibration damping One or more piezo-based devices are mounted on a center bearing assembly of a drive train assembly for reducing the amount of vibrations that are generated therein during operation. The piezo-based device is used to dampen these vibrations by converting t... | 02/18/2003 |
| 6508592 | Device for measuring and adjusting preloading on bearings A device for measuring and adjusting pre-loading on bearings, measuring and adjusting both the mounting and operating loads, wherein elements for applying a preloading and return elements are positioned to constitute a single actuator organ, comprising tw... | 01/21/2003 |
| 6505968 | System for active stiffness, power, and vibration control in bearings A bearing assembly having a shaft member having a bearing race and a piezoelectric member opposing the bearing race is situated so that when a voltage is applied to it, it expands against the bearing race so that a preload of the bearing is varied. The as... | 01/14/2003 |
| 6422757 | Active piezoelectric spindle bearing preload adjustment mechanism An active piezoelectric spindle bearing preload adjustment mechanism includes a preload adjustment assembly located between an inner ring and an outer ring of two bearings, and an internal generator mounted at a selected location in a spindle. The preload... | 07/23/2002 |
| 6283637 | Method for detuning the natural frequency of a rotatable part as well as a tunable rotatable part A method and apparatus for detuning the natural frequency of a rotatable part, which is rotatably disposed in the shaft bearing, and in the case of which the axis of rotation of the rotatable part is arranged axially identically with the axis of rotation ... | 09/04/2001 |
| 6190052 | Method for changing the clamping conditions between a shaft bearing and a rotatable part as well as a shaft bearing A method for changing the clamping conditions between a shaft bearing and a rotatable part, which is rotatably disposed in the shaft bearing, and in the case of which the axis of rotation of the rotatable part is arranged axially identically with the axis... | 02/20/2001 |
| 5916350 | Piston rod bearing assembly of reciprocating piston engine A bearing assembly for a piston rod of a linearly reciprocating piston type engine having a cylinder (11), a piston (12) movable axially in cylinder (11), at least one piston rod (13) secured to and projecting axially from one side of the piston to be rec... | 06/29/1999 |
| 5893098 | System and method for obtaining and collating survey information from a plurality of computer users A system for obtaining information from a plurality of computer users (7 to 12), comprising a processing apparatus (2) including an input mechanism (3 and 4) via which a survey author may input data, and a survey authoring mechanism (FIG. 2) enabling cons... | 04/06/1999 |
| 5564840 | Preload adjustment apparatus and method First and second radial actuating clamps provide selective radial engagement with a housing for preloaded bearings. An axial actuator, retained between the first and second radial actuating clamps, provides selective expansion and contraction of the axial... | 10/15/1996 |
| 5397183 | Active bearing A mechanical bearing, the major advantage inherent in magnetic and other non-contact bearing designs, i.e., being active. The specific bearing disclosed is a tilt pad bearing having a structure which changes shape in a controlled manner in response to a c... | 03/14/1995 |
| 5382095 | Static pressure bearing device An apparatus for preventing the self-excited vibration of a static pressure bearing device includes a movable bed and a porous pad. The movable bed is noncontactly supported by the static pressure of pressurized fluid spouted from the porous pad toward th... | 01/17/1995 |
| 5322369 | Dynamic pressure bearing A dynamic pressure bearing is provided with a moving side bearing member and a fixed side bearing member so as to support a rotor for rotation by generating a fluid dynamic pressure between the moving side bearing member and the fixed side bearing member.... | 06/21/1994 |
| 5238308 | Adjustable gap hydrostatic element Adjustable gap hydrostatic bearings and adjustable gap seals wherein the adjustable gaps are useful to compensate for wear, thermal expansion, journal speed, and radial deflection of the journal. A housing 10 is adjacent to a journal 2. The housing contai... | 08/24/1993 |
| 5201586 | Arrangement for the dynamic compensation of eccentricities of solids of rotation A measuring element which senses the running of the solid of rotation is connected to the actual value input of a controller whose output signal is connected to a control element which acts upon a bearing which is adjustable perpendicularly to the axis.... | 04/13/1993 |
| 5197806 | Bearing system Described herein is a rotational bearing system incorporating a ball bearing to support a shaft or housing in freely rotatable state through rolling contact with the ball bearing, the rotational bearing system comprising: vibratory elements adapted to exc... | 03/30/1993 |
| 5145259 | Bearing system A rotational bearing system incorporates a ball bearing to support a freely rotatable shaft or housing through rolling contact with the ball bearing, the rotational bearing system comprises: vibratory elements adapted to excite in resonant vibration a fix... | 09/08/1992 |
| 4971455 | Slider A slider for guiding a movable article along a guide has an elastic guide member and a movable member which is movable along the guide and is in contact at least on a face with the guide. A standing surface elastic wave is generated on the face of the gui... | 11/20/1990 |
| 4951421 | Device for centering of optic lenses in a mechanical mounting, in particular during edge cutting and bevelling To center optic lenses in a mechanical mounting, in particular during edge cutting and bevelling, the invention includes a device with a housing (10), in which a motor drive (M, R) acts through a torque part (50), drive shafts (14, 14') and drive elements... | 08/28/1990 |
| 4941291 | Device for centering of optic lenses in a mechanical mounting, in particular during edge cutting and bevelling For centering optic lenses in a mechanical mounting, in particular during edge cutting and bevelling, a device with a housing (10) is provided, in which housing a split drive shaft (14, 14') with a torque divider (50) is supported. Two centering spindles ... | 07/17/1990 |
| 4850719 | Bearing with adjustable stiffness A variable stiffness bearing utilizing piezoelectric means for applying a variable preload force to the bearing. The preferred embodiment employs piezoelectric wafers having alternating power and ground connections to the wafers to allow the wafers to dis... | 07/25/1989 |
| 4796365 | Underwater compass sensor with compass dither A compass dither device for use with a magnetic compass heading sensor unit for marine seismic streamers and the like having interrogating circuitry associated with the heading sensor to periodically provide a trigger pulse for interrogating a compass hea... | 01/10/1989 |
| 4666315 | Planar and cylindrical oscillating pneumatodynamic bearings An oscillating pneumatodynamic bearing takes the form of a laminated transducer disk cooperating with a flat surface or a tubular transducer cooperating with a rod or an enclosing tube. Such bearings are also known as squeeze bearings. At least one piezoe... | 05/19/1987 |
| 4657412 | Variable preload bearing assembly A bearing assembly for use with a spindle and featuring a rotatable preload actuator having differential thread portions in mesh with threaded sections of a selected race adjustment member to selectively vary the loading of the bearing. Drive means is pro... | 04/14/1987 |
| 4630941 | Tubular squeeze bearing apparatus with rotational restraint An improved squeeze bearing apparatus exhibits torsional stiffness or rotational restraint since its rod-like bearing member (22) and its sleeve-like bearing member (28) comprise non-circular perimeters (26,32).... | 12/23/1986 |
| 4593956 | Long tube bender element squeeze bearing Tubular, pneumatic, vibratory transducer bearings incorporate a pair of colinear nested tubes with differing radii joined together at their inner and outer radii respectively. The mode of oscillation of the structure is designed to produce minimal vibrati... | 06/10/1986 |
| 4545625 | Prestressed cylindrical squeeze bearing member A sleeve/rod type squeeze bearing system is disclosed in which the piezoceramic driving element is placed in compression to an extent that limits or eliminates stress reversals of the piezoceramic driving element during vibrating cycles. Eliminating or li... | 10/08/1985 |
| 4533186 | Cylindrical type squeeze bearing systems with bearing and driving elements attached in areas of maximum deflection A sleeve/rod type squeeze bearing system is disclosed in which the cross-sectional geometry of the piezoceramic bearing driving element is geometrically dissimilar to the cross-sectional geometry of the bearing element to which it is connected. The arrang... | 08/06/1985 |
