Celebrity Inventors
Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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 |
| 7435182 | Drive shaft A drive shaft is configured from a shaft body, a shaft portion provided with extensions and boot mounting parts coaxially and integrally formed on ends thereof, and constant velocity joints attached to ends of the extensions via interior members. The outer diameter ... | 10/14/2008 |
| 7374493 | Power transmission shaft A power transmission shaft such as a spline shaft and a serration shaft is provided which has improved static strength and fatigue strength. In a power transmission shaft, a diameter expansion surface is formed in a valley section of a tooth on the opposite side of ... | 05/20/2008 |
| 7320381 | Propshafts with honeycomb core dampers A propshaft assembly includes a shaft structure having a hollow cavity and an insert member being positioned within the hollow cavity and engaging the shaft structure. The shaft structure vibrates in response to receipt of an input of a predetermined frequency such ... | 01/22/2008 |
| 7275295 | True vehicle running center shaft assembly system A system for assembling a vehicle drive shaft is provided with the steps of installing yokes on respective ends of a drive shaft tube, each yoke having first and second bores therethrough for receiving respective distal ends of respective spider arrangements, and ro... | 10/02/2007 |
| 7160195 | Propeller shaft assembly with tunable energy absorption feature A propeller shaft assembly includes an inner member having an outer surface with a plurality of splines defining a splined portion, and an outer member having an inner surface with a plurality of splines defining a splined portion. The splined portion of the inner m... | 01/09/2007 |
| 7127816 | Method of permanently joining first and second metallic components A pair of metallic components, such as a pair of metallic structural components for a vehicular body and frame assembly, are permanently joined using a magnetic pulse welding process. Initially, a first metallic component is provided having a first aperture that is ... | 10/31/2006 |
| 7124731 | Internal combustion engine with oil temperature sensor The invention relates to an engine arrangement that increases the degree of freedom of the engine state sensor while decreasing the size of the engine body. More specifically, the engine is formed with a chamber for housing a valve train and serving dually as a retu... | 10/24/2006 |
| 7107865 | Power transmission apparatus for vehicle The power transmission apparatus for a vehicle has a main shaft having drive gears mounted thereto and a countershaft having driven gears mounted thereto, and the respective shafts are attached to a case. A reverse shaft attached to the case has an idler gear for re... | 09/19/2006 |
| 7043818 | Vehicle axle and method and apparatus for manufacturing the same A vehicle shaft has a rigid intermediate portion with a shaft journal welded to each of the two ends of the shaft portion. The shaft journal and/or the intermediate portion are/is provided with a material thickness reduction within a distance a from the contact surf... | 05/16/2006 |
| 7037203 | Adapter device for adapting a worm gear An adapter device is disclosed for adapting a drive of a worm gear to rotate an output shaft. The adapter device includes a sleeve having an inside diameter which is slightly greater than an outside diameter of the output shaft. The sleeve has an outer diameter whic... | 05/02/2006 |
| 7004730 | Integral shaft for use in mud pumps A shaft for use on in a mud pump having a shaft portion and a hub portion integrally formed with the shaft portion. The hub portion extends radially outwardly of the shaft portion. The shaft portion and the hub portion are machined from a single steel black. The hub... | 02/28/2006 |
| 6998756 | Rotor shaft The present invention provides a rotor shaft, comprising: a rod member (26); and a plurality of separately formed component parts (such as a compressor wheel 10, a turbine wheel 11 and a rotor 14 of an electric generator) through which th... | 02/14/2006 |
| 6997813 | Rotary shaft A crash optimized propeller shaft includes a swaged tube to connect ends having disparate diameters. The variable diameter tube creates a stress concentration zone which allows the shaft to collapse or buckle in a controlled and predictable manner in response to pre... | 02/14/2006 |
| 6954967 | Structure of handgrip and method for fabrication of same New form of handgrip for various home appliances, and method for fabricating the same, including a core 2 with decorative color, and a transparent outer shell 3 for enclosing the core 2, thereby solving problems of the present handgrip of peelin... | 10/18/2005 |
| 6912929 | Multi-piece crankshaft construction A multi-piece crankshaft having a shaft with two ends and in which the shaft is adapted to rotate about its shaft axis and a crankpin with at least one indentation. The shaft and crankpin are placed within a mold having a first mold cavity corresponding in shape to ... | 07/05/2005 |
| 6896623 | Axially collapsible propeller shaft assembly An axially collapsible propeller shaft assembly, wherein the axial collapse feature resides in an axially collapsible drive connection between a stud shaft and a hollow propeller shaft, wherein under everyday drivingly conditions the drive connection provides torque... | 05/24/2005 |
| 6880428 | Output shaft structure of shaft driven vehicle An output shaft structure enabling easy and secure positioning of an output shaft for a shaft driven vehicle having an internal combustion engine. The output shaft structure provides first and second cases which mutually connect on a face perpendicular to a cranksha... | 04/19/2005 |
| 6875114 | Tapered coupling A coupling having slots for receiving drive tabs of an associated driving shaft and a driven shaft, wherein the tabs of the driving shaft and the driven shaft are tapered to militate against rotational play between the driving shaft and the driven shaft which result... | 04/05/2005 |
| 6854171 | Method for producing a bending-resistant, elongated body The present invention provides a method for producing a bending-resistant, elongated body, preferably a shaft or beam. The invention is characterized in that an elongated blank is produced having at least one cavity extending essentially along the entire length of t... | 02/15/2005 |
| 6837644 | Dual shaft and rotating machine coupling A dual shaft and rotating machine coupling has a first rotatable shaft, a second rotatable shaft and a rotating machine rotor coupling. The first rotatable shaft has a first shaft connecting flange radially extending outwardly therefrom. The second rotatable shaft i... | 01/04/2005 |
| 6716076 | Output shaft structure of personal watercraft To provide an output shaft structure of a personal watercraft, which is capable of enhancing the durability of the engine. An engine is mounted on a watercraft body with a crankshaft extending in the longitudinal direction of the watercraft body. A shaft of a propul... | 04/06/2004 |
| 6708809 | Clutch shaft stress relief An improved clutch drum and input shaft assembly or intermediate shaft for the transfer of torsional force in a vehicle transmission having a fillet or concave groove structure and a hardened steel shaft. The improved clutch drum and input shaft has additional mater... | 03/23/2004 |
| 6705949 | Shaft spline having a straight side tooth profile A shaft adapted for connection to another shaft in a manner that transfers rotational movement is provided. The shaft bears a spline comprising a plurality of teeth. Each tooth has a profile that enhances surface contact between the shaft and a second shaft, thereby... | 03/16/2004 |
| 6648765 | Supporting device for a plurality of adapter chucks A supporting device for a plurality of adapter chucks for the precision grinding or polishing of optical components comprises a spindle shaft having a central bore for supplying one of a gas and a vacuum, at least one arm adjustably supported by a head of... | 11/18/2003 |
| 6632144 | Output shaft structure for shaft drive vehicle To easily perform a change between a four-wheel drive operation of a vehicle to a two-wheel drive operation of the vehicle. In a four-wheel buggy having the four-wheel drive specification in which a longitudinally mounted engine with a crank shaft is dire... | 10/14/2003 |
| 6626765 | Universal joint shaft The present invention relates to a universal joint shaft which includes a driving shaft and driven shaft engaged to a driving yoke and driven yoke which are arranged in an installation position and have opposite both front ends which are distanced and a r... | 09/30/2003 |
| 6527643 | Telescopic mechanical transmission with angular adjustment for assembly In order to facilitate angular phase-alignment during assembly of a telescopic cardan shaft, comprising an outer splined shaft (1)--equipped with longitudinal inner splines (11)--and an inner splined shaft (3)--equipped with longitudinal outer projections... | 03/04/2003 |
| 6517440 | Plastic shafts with molded core and external feature A shaft assembly including an elongated member having at least a portion which is hollow having an inside surface defining a shaft core is provided. The shaft assembly includes a rotatable, torque transmitting elongated member defining a portion thereof w... | 02/11/2003 |
| 6464588 | Flexible shaft with helical square end A flexible shaft having at least one end formed to have a helical square shape, wherein successive cross-sections have square shapes progressively rotated with respect to each other. The overall rotation from where the square cross-section begins to the a... | 10/15/2002 |
| 6398658 | Composite shaft A composite shaft comprising at least two axial segments of dissimilar materials, the segments being held together by a central tie-bar, wherein a segment of material least subject to radial expansion is provided with a coaxial male member extending axial... | 06/04/2002 |
| 6379255 | Drive assembly having a propeller and an intermediate bearing The invention relates to a drive assembly for transmitting torque, having a propeller shaft (1) and an intermediate bearing (2), such as they are used in motor vehicles for example, wherein the propeller shaft (1) includes a first shaft portion (3) with a... | 04/30/2002 |
| 6364780 | Driveshaft The invention relates to a driveshaft and to a method of producing the driveshaft having three components a first attaching element 1 and a second attaching element 13 and a tube element 8 arranged therebetween. The tube element 8 is provided with a first... | 04/02/2002 |
| 6350205 | Monobloc hollow shaft A monobloc hollow shaft for transmitting torque, having two end portions, which, at their axial outer ends, are provided with shaft toothings for introducing torque, and having a central portion which, as compared to the end portions, has a smaller wall t... | 02/26/2002 |
| 6348001 | Power transmission member A power transmission member (20) is provided by a spline rolling method and apparatus (36) that includes a pair of racks (38) for providing splines (24) with ends (34) opposing each other in a precisely spaced relationship at an annular groove (30) that i... | 02/19/2002 |
| 6280340 | Impact-absorbable power transmission device An impact-absorbable power transmission device is constituted by establishing a frictional spline connection between a shaft and a pipe to allow an axial slide therebetween and to forbid a relative rotation therebetween. An inner race of a universal joint... | 08/28/2001 |
| 6257987 | Stackable transmission shaft A stackable transmission shaft includes a plurality of cylindrical members each having a top formed with a diametrical projection, a bottom formed with a diametrical recess, and a center formed with an axial through hole, the projection having an inverted... | 07/10/2001 |
| 6241619 | Hollow shafts with gas assist molding A shaft including a rotatable, torque transmitting elongated member is provided. A portion of the shaft is hollow and has an inside surface defining a shaft core. The elongated member has an outside surface including a torque transmitting portion and a fu... | 06/05/2001 |
| 6241616 | Variable length double telescoping drive shaft assembly A variable length double telescoping drive shaft assembly particularly suited for higher RPM applications (2,500 to 3,000 RPM). The assembly includes splined sliding members, namely a drive shaft and two elongated tubular members allowing for maximum tele... | 06/05/2001 |
| 6241617 | Propeller shaft assembly for a motor vehicle especially a passenger car The invention relates to a propeller shaft assembly for connecting the front gearbox output to the drive input of a rear axle drive of a passenger car. Said propeller shaft assembly comprises at least two propeller shaft portions 9, 10. Both are supported... | 06/05/2001 |
| 6234912 | High-stiffness composite shaft A composite shaft whose construction and fabrication enable precise placement and orientation of reinforcement fiber bundles, enable close control of runout, and eliminate a separate joining operation for attaching mechanical drive couplings. The composit... | 05/22/2001 |
