Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 8020463 | Rotation/linear motion converting mechanism A rotation/linear motion converting mechanism includes a shaft 1 having an external thread 1a on an outer circumferential surface, a nut 2 having an internal thread 2a on an inner circumferential surface, and a roller 3 | 09/20/2011 |
| 7190096 | Fault-tolerant electro-mechanical actuator having motor armatures to drive a ram and having an armature release mechanism An electrical actuator comprises two or more electrical motors to drive a threaded screw ram. Each motor has an armature that drives a threaded roller screw that is engaged to the threaded screw ram. Each armature of each motor is independently engageable and/or dis... | 03/13/2007 |
| 7185552 | Movable sample holder A device for the axial and rotational movement of a sample is disclosed comprising a mount member for mounting the sample, which is rotatable about and movable along an axis, characterised in that the mount member has a helical screw thread which produces the moveme... | 03/06/2007 |
| 7055284 | Window regulator having a driving threaded shaft whose distance from the window is variable A window regulator includes a threaded shaft (20) arranged at the concave side of the window (16) and extending in the direction of sliding of the same window, a nut screw (24) engaging the threaded shaft (20), which is movable up and dow... | 06/06/2006 |
| 7044012 | Actuating device with intermediate rolling elements Actuating device comprising a longitudinal shaft (2), an intermediate tailstock spindle (3), an outside sleeve (4), internal thread means (5) making it possible to connect the longitudinal shaft and the intermediate tailstock spindle to g... | 05/16/2006 |
| 7044017 | Roller screw system A higher efficiency roller screw system that includes a nut body designed to engage a threaded shaft. The nut body includes a center bore with closed, partial helical grooves formed therein. Disposed inside the center bore is a shaft with open helical threads formed... | 05/16/2006 |
| 7021001 | Anti-pinch power window system An anti-pinch power window system is comprised of a hub, a motor, a threaded rod, a base, a spring, a frame, a bracket, a threaded drive nut, a reversing switch and an electronic circuit. The motor rotates the hub. The rod is slidably attached to the hub. The base i... | 04/04/2006 |
| 7004045 | High thrust valve operator A high thrust operator for gate valves employs an inverted satellite roller screw assembly driven by an internally threaded cylinder carried within a bearing case. The cylinder is sized to provide a relief plenum within the case into which the roller screw assembly ... | 02/28/2006 |
| 7000495 | Actuator device with intermediate rollers Actuator device comprising a support (2); a longitudinal drive rod (8), part of the rear end (9) of which is mounted and rotates inside the support, and of which a front end section (17) has an external screw thread (18) and on its... | 02/21/2006 |
| 6925901 | Device for converting rotational movement into axial movement A device for converting rotational movement into axial movement includes planetary rollers driven by a drive shaft projecting from a drive device and maintained peripherally at a same distance, in addition to a push body axially displaced by the planetary rollers. T... | 08/09/2005 |
| 6648568 | Linear blind broaching machine A linear blind broaching machine (10) includes a base (22), a broaching ram assembly (24), a linear tool slide (26) supported on the base by linear antifriction bearings (90) and a support block (92) mounted between the base and the linear tool slide belo... | 11/18/2003 |
| 6585227 | Roller screw actuator for subsea choke or module An actuator for use with a subsea choke or similar apparatus is disclosed. The actuator uses a planetary roller screw mechanism to allow greater control of the torque output while allowing a fast closing of the choke when well conditions require so. A han... | 07/01/2003 |
| 6370978 | Apparatus for converting a rotary motion into an axial motion An apparatus for converting a rotary motion into an axial motion, is used as overload protection; the force transmitting elements of the conversion apparatus, in the form of a threaded spindle, a nut and/or the intervening planetary rollers and roller bod... | 04/16/2002 |
| 6186020 | Device for conversion of rotary into axial movement The invention concerns a device for the conversion of rotary into axial movement with planet rollers supported at an equal peripheral distance and driven by a drive shaft, and with a thrust body that is axially-displaceable through the planet rollers whic... | 02/13/2001 |
| 6170351 | Device for converting a rotational movement into an axial movement A device for converting a rotary motion into an axial motion has a threaded spindle (1), a nut concentrically surrounding the threaded spindle with a clearance and a plurality of axially parallel rollers (2) guided in a cage (6) and arranged in the cleara... | 01/09/2001 |
| 6131479 | Device for converting rotary motion into axial motion A device for converting rotary motion into axial motion, having planetary rollers which are driven from a stationary drive housing by a drive shaft. These planetary rollers are held circumferentially at the same distance apart by a rotatable cage. The pla... | 10/17/2000 |
| 6101891 | Device for converting a rotational movement into an axial movement Apparatus for converting a rotational motion into an axial motion, includes a threaded spindle (9), a sleeve (10) in concentric surrounding relationship to the spindle at a spacing thereto, and a plurality of axis parallel rollers (1, 5) arranged in the s... | 08/15/2000 |
| 6098479 | Linear actuator and preferred application The invention concerns a linear actuator for the conversion of a rapid rotational movement with low moment into a slow linear movement with high force. The concept of a special roller drive of planet gears and two ring wheels makes possible purely theoret... | 08/08/2000 |
| 6074170 | Pressure regulated electric pump A pressure regulated electric pump is characterized by a positive displacement double acting reciprocating pump driven by an electric motor through a planetary roller screw. A controller senses the pressure of liquid at an outlet from the pump and varies ... | 06/13/2000 |
| 6053063 | Worm drive with a roller ring nut A worm gear for transforming a rotary motion into a reciprocating (linear) motion comprises a threaded spindle (2) which is mounted for rotation in a gear ring nut (1), a profiled gear ring (5) engaging into a screw thread of the threaded spindle at one p... | 04/25/2000 |
| 6026696 | Device for converting a rotary motion into an axial motion A device for converting a rotary motion into an axial motion comprises an outer tube (10) with internal contours (10a), an inner shaft (11) with head (11a) with external contours (11b), an inner chamber (R) formed between tube (10) and shaft (11) and a pl... | 02/22/2000 |
| 5992258 | Rotation/linear motion converting mechanism A mechanism for converting rotational motion to linear motion having a roller thread mechanism interposed between a shaft having multiple male threads and a nut having multiple female threads. The female threads of the nut are opposite in direction to the... | 11/30/1999 |
| 5836208 | Apparatus for converting a rotational movement into an axial movement To convert a rotational movement into an axial movement, rolling or roller bodies (2') are seated by way of a plurality of guide rings (5) and bearings (6) disposed between the guide rings (5) and a spindle nut (3'). The rolling or roller bodies (2') are ... | 11/17/1998 |
| 5809837 | Roller screw device for converting rotary to linear motion A roller screw assembly includes a threaded rod, a nut having internal, non-helical grooves and a plurality of externally grooved elongated rollers seated circumferentially about the rod and captured in place by the nut. The grooves in the nut and rollers... | 09/22/1998 |
| 5725358 | Pressure regulated electric pump A pressure regulated electric pump is characterized by a positive displacement double acting reciprocating pump driven by an electric motor through a planetary roller screw. A controller senses the pressure of liquid at an outlet from the pump and varies ... | 03/10/1998 |
| 5505733 | Intramedullary skeletal distractor and method A device for effecting progressive elongation of a sectioned bone having no extracutaneous elements, and a method for using the device, are presented. The device, which includes a pair of telescopically engaged cylindrical members, is inserted into the me... | 04/09/1996 |
| 5370012 | Linear actuation roller bearing nut A device for convening rotational motion of a threaded shaft to linear motion in parallelism with the shaft and having a high load carrying capacity and operating efficiencies that are on the order of 98 percent (98%), with the device including a roller b... | 12/06/1994 |
| 5187992 | Rotary to linear motion converter A motion converter used with an input element rotatable about an axis and an output element displaceable axially relative to the input element has an axially nondisplaceable support provided with a first external screwthread of predetermined diameter, pit... | 02/23/1993 |
| 5027667 | Spring actuator with rollers An actuator having a body with interior helical grooves, an output shaft with exterior helical grooves, a set of rollers in rolling engagement with the body and output shaft grooves, and a piston sleeve axially movable within the body and retaining the ro... | 07/02/1991 |
| 5020417 | Rotary servo actuator with internal valve A fluid-powered servo actuator having a body, an annular piston, and a shaft extending co-axially therewithin. The shaft has an interior chamber located within the body with two fluid channels extending to the chamber in which the piston is mounted. One c... | 06/04/1991 |
| 5004205 | High-range and resolution determinate mount and positioner The invention relates to a device for accurately positioning an object, such as a mirror 3 used to precisely aim a laser. The invention uses kinematic principles to hold the object. Here a 2-2-2 kinematic bipod system is employed. The invention uses three... | 04/02/1991 |
| 4964314 | Device for converting rotary motion to linear motion An apparatus for converting rotary motion to linear motion includes a centrally located screw member and a concentrically positioned outer member that surrounds the screw member but is spaced therefrom in order to define an annular space between the outer... | 10/23/1990 |
| 4926708 | Apparatus for converting rotary motion into axial motion An apparatus for converting rotary motion into axial motion includes a spindle with an external contour and a nut with an internal profile and interposed contoured rollers which have two different contours, one of which produces an axial connection with t... | 05/22/1990 |
| 4884466 | Screw with recirculated satellite rollers Rollers situated on the circumference of a threaded screw inside a nut have a cavity at each end containing a spring and a pin. When a roller enters the recirculation groove, the spring/pin assembly bearing against the cap recirculates the roller towards ... | 12/05/1989 |
| 4881419 | Fluid-power bearing actuator A fluid-powered rotary actuated support for a platform, having a body with a vertical axial orientation during use. A drive member has a drive shaft extending coaxially within the body and a flange attached to an end portion of the shaft toward an upper b... | 11/21/1989 |
| 4858525 | Postage meter having a worm gear drive and guiding sleeve This invention relates to a postage meter having a plurality of worm gears for adjusting the rotational position of postage print wheels. Each worm gear selectively moves a rack which is an engagement with a postage print wheel so as to provide rotational... | 08/22/1989 |
| 4846007 | Fluid-power device using axially offset rollers A fluid-powered device having a body with interior helical grooves, an output shaft with exterior helical grooves, a plurality of rollers having circumferential grooves, and an axially reciprocating piston sleeve mounted within the body and retaining the ... | 07/11/1989 |
| 4838103 | Fluid-power device with rollers A fluid-powered actuator having a body with interior helical grooves, an output shaft with exterior helical grooves, a first set of rollers in rolling engagement with only the body grooves and axially skewed at an angle corresponding to the lead angle of ... | 06/13/1989 |
| 4748866 | Linear helical actuator A fluid-powered linear actuator having a body, and an output shaft with a piston portion disposed within the body. The shaft is axially movable in a first direction in response to fluid pressure on the shaft piston portion. A piston sleeve is mounted with... | 06/07/1988 |
| 4741250 | Fluid-power device using rollers A fluid-powered device having a body with interior helical grooves, an output shaft with exterior helical grooves, a plurality of rollers having circumferential grooves, and an axially receiprocating piston sleeve mounted within the body and retaining the... | 05/03/1988 |
