Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7363641 | Aligning device, for a disk recording medium, having a sliding portion disposed between the medium and turntable guide portion An aligning device for a disk recording medium capable of reducing eccentricity using a simple structure, without an increase in cost, is provided. An aligning member has a tapered portion that contacts with a center hole of a disk, and fits with a guide portion tha... | 04/22/2008 |
| 7271980 | Disk chucking mechanism having a fan-shaped driving pin In a disk chucking mechanism for use in a flexible disk drive adopting a spindle motor (300) of a Hall sensor-less method, a driving pin (317A) freely received in a driving oval hole (46b) of a flexible disk (40) has a shape (shape... | 09/18/2007 |
| 7269834 | Disc type recording and/or reproducing apparatus A disc type recording and/or reproducing apparatus automatically performs the opening and closing of a shutter provided on a cartridge housing an optical disc in its case, and prevents the above-mentioned opening and closing mechanism from affecting the cartridge af... | 09/11/2007 |
| 7219355 | Optical disk reproducing apparatus An optical disk player including: a disk insertion assembly which is positioned on an upper portion of the front face of the player main body and has a disk insertion/ejection opening into which an optical disk is inserted, a disk conveying device which holds the in... | 05/15/2007 |
| 7155807 | Method of centering media disks on the hub of a spindle motor in a hard disk drive A method for centering and securing data storage disks to the hub of a spindle motor in a hard disk drive has a chamfer and a countersink on the top of the spindle motor shaft center. During the hard disk drive assembly process, a disk centering tool engages and use... | 01/02/2007 |
| 7107603 | Disk device with clamp mechanism, attitude set-up member and conveying mechanism A disk device according to the present invention includes a mechanism unit having a rotational drive unit for driving a disk, a clamp mechanism for clamping the disk to the rotational drive unit, and a conveying mechanism for conveying the disk toward the rotational... | 09/12/2006 |
| 7093346 | Conning motor hub surface method for hard disk drives A hard disk hub has a disk-mounting face formed at one end as a truncated conical surface of revolution symmetric about the hub axis. A cylindrical inner hub member is coaxial with the hub body outside diameter and the surrounding mounting face. The inner hub member... | 08/22/2006 |
| 6947253 | Method for balancing a rotating assembly using eccentric rings A method for balancing a spindle assembly for compensating for dynamic imbalance of the spindle assembly. The method uses a plurality of adjustable eccentric rings for dynamically balancing the spindle assembly. The plurality of eccentric rings are preassembled with... | 09/20/2005 |
| 6947254 | Interchangeable cartridge data storage system for devices performing diverse functions A system for exchanging digital data among a plurality of hand-held computer devices. Digital signals are written by a first hand-held device to a mini-cartridge that mini-cartridge is inter-operable among a class of hand-held devices, each of which is equipped with... | 09/20/2005 |
| 6941570 | Clamp device for optical disc A clamp device for an optical disc is disclosed. The clamp device includes a cover frame having a receiving space and an opening at its bottom surface; a holder chuck which is received at its upper part in the receiving space of the cover frame and rotatably and mov... | 09/06/2005 |
| 6785091 | Interchangeable cartridge data storage system for devices performing diverse functions A system for exchanging digital data among a plurality of hand-held computer devices. Digital signals are written by a first hand-held device to a mini-cartridge that mini-cartridge is inter-operable among a class of hand-held device, each of which is equipped with ... | 08/31/2004 |
| 6741419 | Disk rotation driving apparatus in which a disk-like recording medium is centered on a turn table A base of an arm having a driving projection at its tip is rotatably supported on a turn table. The turn table is provided with a first guide part and a second guide part, an outer edge part of the base of the arm and a first guide part are in contact with each othe... | 05/25/2004 |
| 6587304 | Interchangeable cartridge data storage system for devices performing diverse functions A system for exchanging digital data among a plurality of hand-held computer devices. Digital signals are written by a first hand-held device to a mini-cartridge that mini-cartridge is inter-operable among a class of hand-held device, each of which is equ... | 07/01/2003 |
| 6563668 | Integrated spacer clamp for disk drive An integrated spacer clamp for securing data storage disks to a hub of a disk drive mechanism includes an integral body and spacer flange. The spacer flange separates the body and the disk a predetermined distance apart. The body includes bores that recei... | 05/13/2003 |
| 6525900 | Flexible recording system, flexible disk drive and recording disk A small-sized and thin flexible recording system including a flexible disk drive and a recording disk is provided. The recording disk has a disk-shaped recording medium and a recording medium cartridge rotatably receiving therein the recording medium. The... | 02/25/2003 |
| 6525441 | Spindle motor having disc mounting portion A spindle motor includes a rotor case in which a shaft support is located at the center of the rotor and disc mounting guides are located around the shaft support at a predetermined interval, a shaft installed at the shaft support, a disc chuck spring hav... | 02/25/2003 |
| 6512315 | Brushless motor having turntable A brushless motor having a turntable including a rotor in which a turntable is integrally formed on the outer side of a rotor case and a magnet is arranged on the inner side thereof, a shaft for supporting the rotor, a stator base for supporting the shaft... | 01/28/2003 |
| 6510026 | Exchangeable storage apparatus, recording medium drive actuator, head drive actuator, and recording medium cartridge A flexible disk drive has the configuration of a type-2 card for use in a personal computer or other information processing apparatus. The flexible disk drive includes a cabinet for insertion into a card slot in the information processing apparatus, a mec... | 01/21/2003 |
| 6462903 | Disc-shaped recording medium and disc driving system A disc-shaped recording medium for which information signals are recorded and/or reproduced in a state in which a rotating recording and/or reproducing head is floated a pre-set distance from a signal recording region carrying surface of the disc-shaped r... | 10/08/2002 |
| 6362930 | Floppy disk drive checking device An FDD chucking device includes a magnetic disc on which a center hub of a floppy disk is rested and which rotates in a predetermined direction, and a driving arm equipped with a driving pin on one end thereof and an engaging member on the other end there... | 03/26/2002 |
| 6339273 | Small-size motor A shaft having a diameter A is press-fitted into the central hole of the boss. A tapered portion is formed around one end of the shaft, which is inserted to the center hole, such that a dimension in the extending direction of the shaft is R. The boss incl... | 01/15/2002 |
| 6320836 | Apparatus for ensuring operational clearance between a rotating disc type medium and a disc cartridge enclosing the medium An apparatus for a disc type medium capable of performing smooth recording/reproducing operations while maintaining gaps between a cartridge and a disc type medium encased therein with a fixed accuracy. The cartridge is held and pressed between support me... | 11/20/2001 |
| 6297931 | Recording disk with round spindle hole in magnetic hub and prerecorded tracking servo information A disc includes a disc substrate having a major surface operating as a signal recording portion and having a substantially circular center opening in the major surface, and a hub mounted on the disc substrate for closing the center opening in the disc sub... | 10/02/2001 |
| 6281608 | Spindle motor and turn table assembly having structure for canceling unbalanced centrifugal force A spindle motor includes a shaft 6 which is rotatably supported; a rotor casing 7 which is turned together with the shaft 6; and a turn table 9 which is fixedly mounted on one end portion of the shaft 6 and is rotated with a disk 10 mounted thereon. An ec... | 08/28/2001 |
| 6278575 | Method mounting a data storage cartridge that minimizes Z-axis translation A system provides for mounting a removable media disk cartridge in a disk drive without translating the cartridge or spindle motor in a Z-axis relative to each other. The system comprises a spindle in the drive having a substantially planar top surface wi... | 08/21/2001 |
| 6272104 | Media retention device for CD ROM and digital video drives in a portable computer A portable computer includes a media module having a support surface. A drive base is movable relative to the support surface. A spindle includes an automatically actuatable clamp device mounted on the drive base. A triggering device is mounted in the spi... | 08/07/2001 |
| 6252319 | Disk rotating mechanism Disclosed is a disk rotating mechanism equipped with an automatic aligning mechanism in which the number of parts is reduced and in which an improvement in assembly operability and a reduction in cost are achieved. The automatic aligning mechanism include... | 06/26/2001 |
| 6246539 | Disk chucking mechanism A disk chucking mechanism for selectively chucking floppy disks onto a turntable has a strong neodym first magnet provided on an inner periphery of the turntable so as to attract a first hub and a second hub, and a weaker ferrite second magnet positioned ... | 06/12/2001 |
| 6233110 | Disc driving device with rotational velocity control A disc driving device for accommodating a disc-type recording medium (for example, a floppy disc) that provides reliable chucking and centering of the disc-type recording medium. The disc-type recording medium that is accommodated in the disc driving appa... | 05/15/2001 |
| 6191913 | Motor loading system for a disk drive An improved disk drive includes an improved operating system, an improved eject system, an improved head retract system and an improved motor loading system. In a preferred embodiment of the operating system it includes a motor, an eject crank, a head cra... | 02/20/2001 |
| 6181511 | Platform forward latch with locking feature A movable platform is mounted on opposing guide rails within a disk drive. A head actuator and spindle motor are mounted on the movable platform. The platform moves on the guide rails from a forward position to a rearward position upon insertion of a disk... | 01/30/2001 |
| 6160334 | Motor for driving information medium In a thin type flexible disk drive motor, in order to improve undesirable jittering of rotation, an inertia ring of larger diameter than that of the rotor frame is fixed immediately under the rotor. The inertia ring consists of a short cylinder part of th... | 12/12/2000 |
| 6134081 | Media hub mounting system for minimizing Z-axis during cartridge insertion and ejection translation A system is for mounting a removable media disk cartridge in a disk drive without translating the cartridge or spindle motor in a Z-axis relative to each other The system comprises a spindle in the drive having a substantially planar top surface with an a... | 10/17/2000 |
| 6061215 | Disc recording medium with check insertion hole extending across inner and outer rim portions of the hub A signal recording medium capable of being strongly secured to a rotation part such as a disc table even during high-speed rotation includes a floppy disc with a hub at its center portion and a disc substrate having a disc-shaped main portion with a circu... | 05/09/2000 |
| 6040649 | Support structure apparatus for a spindle motor of a compact disc machine A support structure for a spindle motor of a compact disc machine, generally comprising a shaft, a rotor base, a support plate and a binding member. The shaft is disposed through a centrally located hole in the rotor base. The support plate is disposed on... | 03/21/2000 |
| 6031687 | Disk table in magnetic disk drive A disk table in a magnetic disk drive is disclosed. The disk table comprises a disk table body having an opening, a chucking arm made of an elastic body, where one end of the chucking arm is fixed on a lower face of the disk table body and the other end o... | 02/29/2000 |
| 6005311 | Spindle motor and turn table assembly having structure for canceling unbalanced centrifugal force A spindle motor includes a shaft 6 which is rotatably supported; a rotor casing 7 which is turned together with the shaft 6; and a turn table 9 which is fixedly mounted on one end portion of the shaft 6 and is rotated with a disk 10 mounted thereon. An ec... | 12/21/1999 |
| 6002547 | Disk drive with a rotatably mounted disk drive motor An improved disk drive includes an improved operating system, an improved eject system, an improved head retract system and an improved motor loading system. In a preferred embodiment of the operating system it includes a motor, an eject crank, a head cra... | 12/14/1999 |
| 5984319 | Holding device The invention relates to a holding device for balancing disk-like inertial bodies, which comprises at least two clamping elements (8) centered on a center axis (A), such elements (8) having a respective radial abutment face (34), wherein the clamping elem... | 11/16/1999 |
| 5875069 | Claw-pole synchronous motor for driving a storage device There is provided a storage device whose cost is greatly reduced by employing a low-cost claw-pole two-phase synchronous motor as a spindle motor in which the rotation nonuniformity and vertical fluctuation of its shaft are suppressed while suppressing th... | 02/23/1999 |
