Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7371180 | Double pivoting tilt joint The invention provides a double pivot tilt joint for connecting two shafts for synchronous rotation and for tilting movement relative to one another. The double pivot tilt joint includes a first shaft member and a first pivot pin extending at least partially through... | 05/13/2008 |
| 7354348 | Hollow universal joint A hollow universal joint having a first member, a second member and a first hollow yoke ring coupling the first member to the second member to transfer rotational motion between the first and second members. The first hollow yoke ring has a first central axis. The f... | 04/08/2008 |
| 7220182 | Axially spaced perpendicularly disposed rigidly slidable radial dual torque pin universal rotary shaft coupling Large parallel and angular misalignment capabilities between coupled rotary shafts are provided in a torsionally rigid coupling by slidable and rotatable medial mounting of each of two radial, axially spaced, perpendicularly disposed torque pins through axially spac... | 05/22/2007 |
| 7200460 | Method of depositing low dielectric constant silicon carbide layers A method of forming a silicon carbide layer for use in integrated circuits is provided. The silicon carbide layer is formed by reacting a gas mixture comprising a silicon source, a carbon source, and a nitrogen source in the presence of an electric field. The as-dep... | 04/03/2007 |
| 7140969 | Overmolded yoke assembly A universal joint having a first yoke including a body portion and an overmold portion. The body portion includes a base and a pair of arms that extend from the base. A trunnion assembly is coupled to the first yoke and extends between the arms. A second yoke is cou... | 11/28/2006 |
| 6949101 | Medical instrument for milling a curved path in bone and procedure A medical instrument and procedure is adapted to mill bone along a curve and with respect to at least two angles of orientation with respect to an input source of rotary motion. Particularly, the medical instrument is a bone milling apparatus that is configured to m... | 09/27/2005 |
| 6656053 | Automatically restorable universal connector An automatically restorable universal connector includes at least two members pivoted with each other, each of the two members formed with a pivot end which is provided with a locking portion; a pivot shaft extended through the two members; and a restorin... | 12/02/2003 |
| 6389921 | Wrist mechanism of industrial robot A wrist mechanism of an industrial robot is described which have a first ring-shaped hollow reduction unit secured to an arm of the robot, and a first hollow drive tube and a second ring-shaped hollow reduction unit secured to an output shaft of the first... | 05/21/2002 |
| 6390927 | Spring loaded U-joint with spring retaining surface An improved universal joint device for socket wrenches. The improved device is constructed with non-slip spring retaining surfaces on the handle and socket portions of the device for receiving the ends of a coil spring which can maintain the universal joi... | 05/21/2002 |
| 6325724 | Universal joint assembly for coupling together a first and a second shaft The universal joint of this invention comprises a hub interposed between an upper shaft and a middle shaft, an upper pin coupling together the upper shaft and the hub, a lower pin coupling together the middle shaft and the hub, and a stopper ring fitting ... | 12/04/2001 |
| 6287206 | Limited angle universal joint A univesal joint, block and pin type, in which a carefully designed and sized center section will limit angulation of the joint at any angle desired up to, but not including an angle which will cause lockup.... | 09/11/2001 |
| 6123621 | Joint floor transmitting shifting forces from a gear shifting system of a transmission to a transmission drive member A joint for transmitting shifting forces from a gear-shifting system of a transmission to a transmission drive member includes a pair of joint parts (1, 2) frictionally locked to the transmission drive member and to the gear-shifting system, a coupling (3... | 09/26/2000 |
| 5766081 | Modified ear design to avoid lock up of universal joint A universal joint which has pivotal movement of each member less than 45°. The sides of the ears of each member are tapered to a predetermined angle, the radial distance between the center of the opening in each ear and the respective apex of each ear is... | 06/16/1998 |
| 5597566 | Vibration damping universal joint A vibration damping universal joint is disclosed for providing three degree of freedom orientation and limiting rotational deflection between a first and second rod portion of a manual transmission gear shift rod. The universal joint includes a first and ... | 01/28/1997 |
| 5505661 | Coupling for connecting axially misaligned and rotatable components having disengaging properties A coupling for connecting axially misaligned and rotatable shafts that has disengaging properties. This coupling includes a driver member which is adapted for attaching to a driving shaft, this driver member has a cup portion and a pair of through apertur... | 04/09/1996 |
| 5496219 | Universal joint with dual rollers A device for connecting two non-coaxial rotating shafts comprises a first body connected to one shaft and a second body connected to the other shaft. A link extends between the two bodies. A first coupling mechanism connects the first body to the link and... | 03/05/1996 |
| 5458028 | Socket wrench device A universal joint device for interconnecting the handle portion and socket portion of a socket wrench is disclosed. The universal joint device is constructed with grooves for receiving the upper and lower ends of a coil spring which maintains the universa... | 10/17/1995 |
| 5197816 | Locking double U-joint assembly A flexible double U-joint assembly that includes structure for locking the assembly in a single U-joint mode to permit easy insertion into a pipeline with an associated inspection device. When in the pipeline, the assembly may be converted to a double U-j... | 03/30/1993 |
| 5163877 | Joint for the transmission of torque from a first shaft to a second shaft Joint for transmission of the torque of a first shaft to a second shaft so that the second shaft additionally makes a lifting movement, and the angle between the axes of the two shafts is adjustable, characterized by two bolts mounted to be rotatable and ... | 11/17/1992 |
| 4914975 | Serpentine tube inspection positioning spine A serpentine tube inspection positioning spine formed from a plurality of identical links mated together. Each link has first and second bifurcated ends with the first end sized to fit within the second end of an adjacent link. Links are mated together by... | 04/10/1990 |
| 4914974 | Serpentine tube inspection positioning spine A serpentine tube inspection positioning spine formed from a plurality of identical links mated together. Each link has first and second bifurcated ends with the first end sized to fit within the second end of an adjacent link. Links are mated together by... | 04/10/1990 |
| 4914973 | Serpentine tube inspection positioning spine A serpentine tube inspection positioning spine formed from a plurality of identical links mated together. Each link has first and second bifurcated ends with the first end sized to fit within the second end of an adjacent link. Links are mated together by... | 04/10/1990 |
| 4692127 | Device for a force transmitting connection between two shafts An intermediate shaft is provided which achieves a sliding connection between an outer part (17) and an inner part (18) inserted into the outer part. Two Cardan joints are formed of axial bores (22, 31). The joint heads (48, 49) are inserted into the axia... | 09/08/1987 |
| 4572682 | Lubricated universal joint A universal joint includes a transmission ring provided with two pairs of holes, a pair of rotating shafts whose integrally provided pins are slidably fitted into the corresponding holes and a lubricating ring fitted onto the transmission ring with a pred... | 02/25/1986 |
| 4436440 | Shiftable daisy wheel printer A printer includes a type wheel carrying a multiplicity of fingers each carrying types disposed in a plurality of tiers, and centrally formed with a rotary shaft. The type wheel is disposed perpendicular to the axis of a platen. The printer performs a pri... | 03/13/1984 |
| 4285214 | Flexible coupling A flexible coupling for drivingly interconnecting a driving member and a driven member. The coupling includes a first coupling arrangement adapted for connection to the driven member and a second coupling arrangement adapted for connection to the driving ... | 08/25/1981 |
| 4272972 | Universal joint A universal joint formed of plastic parts and including two yokes and a block pivotally connected to the yokes. Each of the yokes has a cylindrical portion with a shaft receiving bore at one end thereof and a pair of arms integrally formed at the other en... | 06/16/1981 |
| 4166366 | Universal joint A universal joint comprises a first pin disposed with its axis intersecting the axis of a first yoke at right angles thereto, a second pin disposed with its axis intersecting the axis of a second yoke at right angles thereto and positioned at right angles... | 09/04/1979 |
| 4101021 | Apparatus for conveying bulk materials A bulk material conveying mechanism including a series of tubular elements each having a screw convolution attached to the exterior of the element body. Universal joints connect confronting ends of adjacent tubular elements to allow the elements to confor... | 07/18/1978 |
| 4077234 | Coupling apparatus Coupling apparatus for coupling first and second objects together and including first and second coupling means carried by respective ones of said objects. The first coupling means comprises a latch carrying member and latch control means telescopic there... | 03/07/1978 |
| 4065941 | Universal joint A universal joint adapted for use in high impact wrenches is disclosed. The universal joint comprises a tubular housing having a first end and a second end. A first ball joint having an input shaft with a ball member disposed at one end thereof and an att... | 01/03/1978 |
