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.
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 |
| 7255635 | Polishing apparatus In polishing apparatus of the present invention, collars can be easily exchange. The polishing apparatus comprises: an outer pin gear having an inner gear section; an inner pin gear having an outer gear section; and a carrier having outer gear teeth, which are engag... | 08/14/2007 |
| 7159831 | Adjusting device An adjusting device (3) is suitable especially for use on a stand (1) for a surgical microscope (2). The adjusting device (3) makes it possible to move the surgical microscope (2) in a plane (9) perpendicular to the optical ... | 01/09/2007 |
| 7086304 | Roller cam assembly A transmission comprises a pair of drive shafts, one an input shaft and the other an output shaft, wherein one of said shafts is attached to a toothed cam having a trochoidal profile and the other drive shaft is attached to a roller ring having a plurality of cylind... | 08/08/2006 |
| 6958026 | Sprocket tooth profile An improved tooth profile for a roller chain sprocket enables noise reduction from impact and polygonal action during the meshing process. The profile of the engaging flank consists of three portions which are the seating, impact and distal portions all three of whi... | 10/25/2005 |
| 6902507 | Roller cam assembly A two-stage epicyclic roller cam transmission comprising in each stage: a roller ring having a plurality of fixed-position rollers; and a cam gear having pitch-circle-generated, trochoid-shaped teeth and independent pitch, wherein the rollers are spaced to mesh with... | 06/07/2005 |
| 6311800 | Raising system for scaffolding and the like A raising system for scaffolding, elevator cabins and the like which comprises a vertical stationary beam member from one side of which equally vertically spaced similar rack teeth are protruding, each tooth having a substantially horizontal straight top ... | 11/06/2001 |
| 6276830 | Linear guide assembly with positively guided cage Linear guide assembly comprising at least two guide rails, which are moveable in the longitudinal direction with respect to each other and have prismatic shaped raceways, a plurality of rolling elements guided in a cage, at least one gear wheel for the po... | 08/21/2001 |
| 6199475 | Drive and bearing device for the twisting disks of the binding device of a waste bale press A drive and bearing device for a binding station for finished bales predominantly in waste bale presses with a horizontally acting press plate, wherein several twisting wheels provided with a radial slot for receiving the binding wire are mounted in a sup... | 03/13/2001 |
| 6155719 | Linear guide assembly with positively guided cage Linear guide assembly comprising at least two guide rails, which are movable in the longitudinal direction with respect to each other having similarly shaped raceways, a plurality rolling elements, guided in a cage, at least one gear wheel connected to th... | 12/05/2000 |
| 6023989 | Transmission device for converting a torque between rotary movement and linear movement A transmission device for converting a torque from rotary to linear movement includes a rack having a plurality of teeth and a pinion having rollers which mesh with the teeth of the rack, with pressurization provided therebetween. The rack has an arcuate ... | 02/15/2000 |
| 5960668 | Indexing mechanism using pairs of radially disposed rollers engaged between adjacent cam ribs A roller gear cam index mechanism including a turret having pairs of adjacent rollers radially arranged on a circumference thereof. Each pair of rollers is engaged between adjacent ribs on a globoidal cam. The angle between the line up direction of every ... | 10/05/1999 |
| 5784923 | Toroidal drive system and method of assembling same A toroidal drive system includes a housing composed of first and second mating housing sections having interior walls which cooperate to define a plurality of parallel, helix-like races inscribed in a torus having a circular axis. The two mating housing s... | 07/28/1998 |
| 5709127 | Mechanical oscillator A mechanical oscillator including a shaft having an endless groove in its periphery, a nut body carried by and slidable along the shaft at the location of the endless groove, and a roller pin carried by the nut body, having a nose portion extending into a... | 01/20/1998 |
| 5704248 | Bearing tooth gear Elaboration on the merits of an improved gear family known as Bearing Tooth Gears. The rotative contact of meshing Bearing Teeth in a Bearing Tooth Gear set, allows for an increase in candidate materials, used in the construction of these gears and allows... | 01/06/1998 |
| 5644950 | Heavy-duty mechanical oscillator A heavy-duty mechanical/oscillator utilizes a shaft having an endless cam groove in its periphery, and a nut body carried by and slidable along the peripheral portion of the shaft. A roller pin on the nut body, extends into and engages a wall of the endle... | 07/08/1997 |
| 5592852 | Mechanical oscillator A mechanical oscillator including a shaft having an endless groove in its periphery, a nut body carried by and slidable along the shaft at the location of the endless groove, and a roller pin carried by the nut body, having a nose portion extending into a... | 01/14/1997 |
| 5540111 | Drive apparatus and method Drive apparatus and method for converting linear motion to rotary motion and vice versa are disclosed. The drive apparatus includes a rack having a plurality of spaced first engagement members arranged single file in a first path and a sprocket having a p... | 07/30/1996 |
| 5477741 | Motion transforming mechanism A motion transforming mechanism comprises a plate assembly and a toothed rail. The plate assembly is constituted by at least three rotation plates having a common rotation axis and each having a plurality of teeth, the rotation plates being respectively f... | 12/26/1995 |
| 5381704 | Bearing tooth gear Apparatus and methods for transmitting rotative forces through a series of meshed gears, comprising a gear system or assembly having at least one gear with a plurality of non-traditional, non-conventional configured teeth that serve as rotatable bearings ... | 01/17/1995 |
| 5381703 | Gearbox countershaft decoupler A gearbox for automotive applications which includes an input shaft, an output shaft and a countershaft avoids driving the countershaft when in a direct drive mode by providing a selective coupling and decoupling mechanism. An input gear is mounted for fr... | 01/17/1995 |
| 5255572 | Variable stroke mechanism A variable stroke mechanism provides a means for varying the stroke and leverage of a linkage between reciprocating power source and crankshaft. The mechanism includes a lever connected at one end to the reciprocating power source and at the other end to ... | 10/26/1993 |
| 5247847 | Cam gear assembly A gear assembly with roller-cam contact by a cam gear with adjacent teeth forming a notch which defines a lobular periphery and a roller gear with a plurality 10A of rotatable rollers 10 is disclosed. Upon rotation, a roller rollingly contacts one of the ... | 09/28/1993 |
| 5081885 | Drive with oscillator-coupled transversely moving gear elements A worm-like drive mechanism has a plurality of axially-spaced eccentrics rotated by an input shaft located at right angles to an output shaft. A wheel mounted on the output shaft has a circumferential surface with periodic undulations. Oscillators in the ... | 01/21/1992 |
| 4998442 | Gantry robot construction and drive mechanism A gantry robot construction is provided. The construction includes a pair of elongated substantially spaced parallel rails, a bridge spanning and substantially perpendicular to the rails and movable relative to the rails, and a robot head and support moun... | 03/12/1991 |
| 4944196 | Conjugate gear system A conjugate gear system including a pair of meshingly engageable toothed gears, at least one member of the gear pair having at least one three-component tooth. Each three-component tooth is comprised of a central core, at least one face disposed thereon, ... | 07/31/1990 |
| 4879920 | Antibacklash gears including rack and pinion gears The meshing gear teeth comprise cylindrical profile teeth on a gear or rack and circular arc profile teeth on the other gear or pinion. Each cylindrical profile tooth is preferably mounted for free rotation about the cylindrical axis of the tooth. Driving... | 11/14/1989 |
| 4833934 | Roller worm drives and roller wheels for use therein In a worm wheel for a roller worm drive, each roller is movable along its axis relative to the body of the wheel, and biased towards an extended position by a spring. The springs are mounted in the space between inboard and outboard bearings associated wi... | 05/30/1989 |
| 4685346 | Power transmission system A worm drive system includes a worm wheel having two sets of angularly arranged rollers. Each set of rollers mates with a separate screw thread on a worm screw associated with the worm wheel. The worm drive system may also include a second worm screw havi... | 08/11/1987 |
| 4665763 | Worm gear drive A worm gear drive wherein revolvable spheres captured in respective cages are equally spaced about a wheel rim with their centers on a common circle to mesh with a worm groove by rolling only on a track defined by a sidewall of that groove without sliding... | 05/19/1987 |
| 4651586 | Power transmission mechanisms A power transmission mechanism having an hourglass worm with a continuous tooth groove. Cooperating with the hourglass worm is a wheel device having a plurality of recesses therein spaced around its circumference with the spacing between the recesses corr... | 03/24/1987 |
| 4643047 | Speed reducing gearing mechanism employing trochoidally formed gear surfaces for rolling torque transmission An epicyclic speed reducing mechanism employs, as torque transmitting elements, a series of rolling elements which are constrained to travel along a substantially trochoidal path defined by means of complementary or conjugate surface regions formed on the... | 02/17/1987 |
| 4604916 | Epicyclic transmission having cam driven roller retainer An epicyclic speed reducing transmission having first and second sets of conjugate epitrochoidal and hypotrochoidal races and first and second sets of rollers transmitting torque between respective sets of races includes a retainer structure for the first... | 08/12/1986 |
| 4584904 | Epicyclic transmission having free rolling roller driving elements A speed reducing transmission includes roller driving elements operating to transmit torque between opposed trochoidally formed surfaces. The device may have one or multiple reduction stages and may be either counterbalanced or counterweighted to achieve ... | 04/29/1986 |
| 4541297 | Rotating shaft of roller screw structure and its driven device A rotating shaft is provided with a large number of support shafts arranged on a helical line, and the support shafts are provided with rotatably supported rollers driven members are provided which are interlockingly engaged mutually with the rotating sha... | 09/17/1985 |
| 4394112 | Combination roller tooth set having roller teeth and concave surfaces disposed to engage each other The disclosure is directed to a combination roller set comprising an inside body member having a first longitudinal body axis and an outside body member surrounding said inside body member and having a second longitudinal body axis substantially parallel ... | 07/19/1983 |
| 4382683 | Mixing machines In a rotary drum mixing machine of the kind in which the drum is rotated in opposite directions to mix and eject its contents respectively by a prime-mover operating through driving and driven means on a prime-mover driven shaft and the closed end of the ... | 05/10/1983 |
| 4297919 | Mechanical power transmission method and means A particularly compact and efficient transmission includes one or more helix-like races having a common axis of rotation, a support member extending along the axis, one or more bearing units axially fixed to the support member and with their peripheries p... | 11/03/1981 |
| 4282777 | Pancake planetary drive A improved planetary drive employs a pair of radially inner and outer nonorbiting members between which is radially disposed an annular orbiting member. The inner nonorbiting member and the inner surface of the inner wall of the orbiting member are formed... | 08/11/1981 |
| 4093036 | Irrigation tower drive An irrigation tower structure is provided including support and drive wheels for supporting and driving the tower from and over ground to be irrigated. The tower has a driven shaft journalled therefrom and wheel driving shafts journalled therefrom. A plur... | 06/06/1978 |
| 4025120 | Feed system of a coal getting combine The feed system of a coal getting combine, which works with a face conveyor, comprises: a traction device located on the combine and having a cylinder-shaped sprocket on the side surface of which a circular spherical-shaped recess is provided, slots being... | 05/24/1977 |
