Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7341135 | Overrunning clutch An overrunning clutch comprising a ratchet wheel (1) and a plurality of pawls (2) is disclosed. Each of the pawls (2) is rotationally supported on a disk member (5) by a shaft (3). The clutch is characterized by a permanent magnet ... | 03/11/2008 |
| 7311188 | Electromagnetic clutch An electromagnetic clutch for separably coupling a drive source and a rotary shaft has a rotor to be disposed in the outside of the rotary shaft concentrically therewith. The rotor is rotated by a drive source and accommodates an electromagnetic coil. The electromag... | 12/25/2007 |
| 7086515 | Clutch and synchronizer having permanent magnet actuators A friction clutch pack utilizes permanent magnets and induction rings to actuate a ball ramp actuator which come in turn, engages the friction clutch pack to transfer torque between drive and driven members in, for example, a motor vehicle transfer case. The permane... | 08/08/2006 |
| 7070034 | Electromagnetic clutch and manufacturing method of magnetic path forming member therefor An electromagnetic clutch includes a first magnetic member with a large-diameter cylindrical portion made of a magnetic metal and a second magnetic member with a small-diameter cylindrical portion made of a magnetic metal and contained in the large-diameter cylindri... | 07/04/2006 |
| 7063190 | Braking system A braking system having a brake disc and a brake plate. The brake disc and brake plate each include three plateaus that include ramps on each end. The plateaus of the brake disc are configured to substantially mate with the plateaus of the brake plate. ... | 06/20/2006 |
| 6838796 | Two-speed rotational control apparatus with eddy current drive A rotational control apparatus includes a first rotatable assembly and a second rotatable assembly. The first assembly is rotatably mounted to a first support mount. The second assembly is rotatably mounted to the first assembly and is axially moveable relative to t... | 01/04/2005 |
| 6223613 | Preload constant mesh gearbox An improvement to gear systems, the improved gear system characterized by at least one gear-wheel (42c) provided about a shaft (34), the shaft (34) and the or each gear-wheel (42c) being provided with a actuable engagement therebetween in both rotational ... | 05/01/2001 |
| 6208053 | Adjustable torque hysteresis clutch A hysteresis slip clutch having an adjustable stall torque is provided. The clutch components include first and second rotors, with a housing at least partially enclosing the rotors. An annular permanent magnet is rigidly mounted on the first rotor and an... | 03/27/2001 |
| 6142277 | Magnetic ratchet/clutch-type apparatus Socket-type wrenches using a magnetic ratchet/clutch-type apparatus are disclosed. The apparatus preferably employs several pawls, as well as a ratchet-type wheel for engaging the pawls. The apparatus also utilizes the wrench's body which defines a chambe... | 11/07/2000 |
| 6095300 | Device for the operation of an instrument, for example an axle In a device for driving an instrument (2), for example an axle, step-by-step, the device includes a driving part (1), a space (3) between the driving part and the instrument (2), and at least one ball/roller (4) which can have different positions (A, B, C... | 08/01/2000 |
| 6070706 | Double acting roller/ball clutch gear A gear mechanism containing a clutch assembly made of an outer member and an inner member wherein the rotation of the inner member is less than one revolution. The inner member has a chord surface, and when inserted in the outer member a wedge shaped spac... | 06/06/2000 |
| 6065361 | Gear system with gears selectively locked with shaft A gear system characterized by providing at least one gear-wheel (58a) about a shaft (34), the shaft (34) having as least one pawl member (84) located therein, the or each pawl member (84) being caused to move into and out of engagement with a gear-wheel ... | 05/23/2000 |
| 6025664 | Permanent magnet vehicle braking apparatus A vehicle braking system including a brake drum connected to a rotational shaft; an annular member formed of a ferromagnetic material; a guide frame for supporting the annular member in a position within said spaced from an inner surface of the brake drum... | 02/15/2000 |
| 6007074 | Frictionless noncontact engaging drive skate and skateboard The single-foot drivable skate and skateboard is constituted of the simultaneously steering-driving mechanism, synchronous differential driving mechanism, wheel and board. The simultaneously steering-driving mechanism comprises a universal pedal, the driv... | 12/28/1999 |
| 5870818 | Method for manufacturing a pole piece for electromagnetic friction clutch A pole piece for use in an electromagnetic friction clutch is formed by initially providing a preform formed from a magnetically permeable material, such as a ferromagnetic powdered material. The preform includes a face having one or more concentric annul... | 02/16/1999 |
| 5862903 | Centrifugal clutch for power door locks A centrifugal clutch for use with a power door lock actuator. The centrifugal clutch includes an independently rotatable pinion cup having an integral pinion gear which meshes with a jack screw, and a driver rotatably secured to an output shaft of a drive... | 01/26/1999 |
| 5848678 | Passive magnetorheological clutch A passive magnetorheological clutch includes an input member that is constantly driven at engine speed, or some selected proportion thereof. An output member is journaled on the input member so as to be supported thereon in a nonrotating state and to be c... | 12/15/1998 |
| 5847478 | Electro-magnetic clutch A self holding type connecting device comprising an armature which is disposed movably in an axial direction, a magnetic path member having a cross section formed along a closed loop and having an axial space wherein axial movement of the armature is perm... | 12/08/1998 |
| 5804897 | Permanent magnet vehicle braking apparatus Projecting into a brake drum is an annular guide frame defining an annular inner chamber of rectangular shape in section, having an outer wall portion formed by a thin cylindrical body of nonmagnetic material, and an inner annular wall of ferromagnetic ma... | 09/08/1998 |
| 5713405 | Method and apparatus for transmitting rotation driving force to spindles In a method for transmitting rotation driving force to spindles, a plurality of spindles are intermittently conveyed one after another to a predetermined position, and rotation driving force is transmitted to a spindle, which has been conveyed to the pred... | 02/03/1998 |
| 5714820 | Magnetic coupling A magnetic coupling includes a cylindrical housing, a spindle, an adjusting plate, two pairs of permanent magnet discs, two hysteresis material discs, and a screw member. The spindle is rotatably supported at its axial position by the housing. The adjusti... | 02/03/1998 |
| 5678672 | Torque transmission device, such as a clutch A torque transmission device (10) for the selective transmission of a torque between drive input parts (12) and drive output parts (14) which rotate relative to one another around an axis of rotation (A), comprising: a first clutch element (15) which is n... | 10/21/1997 |
| 5609232 | Electromagnetic clutch with permanent magnet return mechanism An improved electromagnetic clutch is provided with a permanent magnetic return mechanism. The clutch includes a rotor connected to a driven device, such as a refrigerant compressor, a flywheel connected to a driving device such as an internal combustion ... | 03/11/1997 |
| 5598908 | Magnetorheological fluid coupling device and torque load simulator system A fluid coupling device for coupling torque between two members and utilizing a magnetorheological fluid having a controllable yield strength in shear in response to a magnetic field and having a determinable viscosity in the absence of a magnetic field a... | 02/04/1997 |
| 5586636 | Friction clutch, particularly for a fan wheel of a motor vehicle engine fan A friction disc clutch is proposed, particularly for a fan wheel of a motor vehicle internal combustion engine or the like, in which a direct rotational speed transmission of the engine rotational speed takes place by means of a first friction disc clutch... | 12/24/1996 |
| 5551262 | Power transmission apparatus of a washing machine A clothes washing machine includes a spin-drying tub and an oscillatory pulsator disposed in the tub. A first shaft arrangement transmits a driving force from an electric motor to the pulsator during a wash cycle. A second shaft arrangement, coaxial with ... | 09/03/1996 |
| 5454439 | Power steering gear for motor vehicle A motor vehicle power steering gear having a proportional control valve and an electromagnetic apparatus for varying the effective restoring torque of a torsion bar of the proportional control valve. The electromagnetic apparatus includes a cylindrical ri... | 10/03/1995 |
| 5445338 | Tape driver A torque limiting device for a reel turntable can obtain a stable limiting torque even when an ambient temperature or speed is changed and also can prevent a tape from being damaged when a tape path is fluctuated. First and second magnets are disposed in ... | 08/29/1995 |
| 5205386 | Pawl and ratchet clutch with pawl holdback A pneumatic starter (10) incorporates a pawl and ratchet clutch assembly (50) having a ratchet member (46) mounted to a drive member (40) powered by an air expansion turbine (20), and a plurality of ferromagnetic pawls (48) disposed circumferentially abou... | 04/27/1993 |
| 5101949 | Temperature sensitive fluid-type fan coupling device A temperature sensitive fluid-type fan coupling device comprises a closed enclosure including a casing journalled on a rotary shaft through a bearing and having a cooling fan at its outer periphery, and a cover, a partition adapted to divide the interior ... | 04/07/1992 |
| 5072750 | Fire hydrant closures Improvements relating to fire hydrant closures are disclosed in which a cap-shaped cover for the outflow port from a fire hydrant, and a tool for locking and unlocking the cap on the hydrant, is provided. The cap includes a septum-like strong plate which ... | 12/17/1991 |
| 4860864 | Clutch for robot or like The present invention provides a clutch connected between a robot or like and an attached end of arm tooling device (EOAT). The clutch includes two plates having a fixed relationship with one another. Excessive loading on the EOAT beyond predetermined amo... | 08/29/1989 |
| 4825992 | Magnetic torque limiting clutch having overload disconnection means This torque limiting clutch has a motor driven hub carrying two concentric cup-shaped rings with a cylindrical permanent magnet therebetween. Keeper plates are pivotally secured to the hub and overlay coplanar edges of the rings to which the keepers are m... | 05/02/1989 |
| 4770279 | One-way clutch A one-way clutch that employs spaced apart magnetic members to draw rollers into portions of a cam surface so that a shaft and race will rotate as one.... | 09/13/1988 |
| 4716922 | Magnetic fire hydrant guard A device is provided, designed to prevent unauthorized operation of fire hydrants by completely concealing the hydrant operating nut and weather shield within freely rotating sleeves, thereby rendering the hydrant inoperable. The hydrant is made operable ... | 01/05/1988 |
| 4620428 | Lock and coupling for securing fire hydrants A lock and coupling apparatus for securing fire hydrants is disclosed. The two piece apparatus comprises an inner member concentrically received within an outer cylindrical member. The inner member is formed with a socket for receiving the five sided hydr... | 11/04/1986 |
| 4570766 | Magnetic clutch-brake mechanism This invention is a magnetic clutch brake mechanism operable to achieve either a clutch or a brake function and can be installed, for example, on a lawn mower apparatus to selectively control the rotating movement of a lawn mower blade member. The magneti... | 02/18/1986 |
| 4568310 | Drive shaft coupling device A drive shaft coupling apparatus which includes a first segment of a drive shaft, a ferromagnetic end piece mounted on one end of the first segment to provide linear play and angular flexibility with respect to the axis of rotation of the first segment, a... | 02/04/1986 |
| 4544048 | Magnetic friction device A magnetic friction device for permitting one machine member to be moved relative to another by applying a predetermined force and for holding one member in a fixed position when the force is discontinued. One member is magnetically susceptible and has a ... | 10/01/1985 |
| 4535583 | Rotary type capping apparatus A rotary type capping apparatus for screwing caps onto the mouths of containers includes a turn table provided with a plurality of container holders fixedly mounted along the periphery thereof, a main motor for rotating the turn table in a predetermined d... | 08/20/1985 |
