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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8004797 | Tape drive with a clamping mechanism coupled to a flexible circuit Various embodiments are disclosed for a flexible circuit. In one embodiment, the flexible circuit bends on a curved surface to form a partial loop. ... | 08/23/2011 |
| 7369338 | Servo writer, and write and inspection method of servo signal A servo writer of the invention writes a servo signal in a magnetic tape, reads and inspects the signal, and has a servo writer main body and a plurality of unit panels changeably loaded to a panel change unit provided at the main body according to a product class o... | 05/06/2008 |
| 7342750 | Method for providing electrical crossover in a laminated structure An externally wireless laminated suspension for a hard disk drive are disclosed. In one embodiment, the externally wireless laminated suspension has an insulating layer to electrically isolate a first and second electrical trace from a conductive support layer. The ... | 03/11/2008 |
| 7280029 | Laminated ferrimagnetic thin film, and magneto-resistive effect element and ferromagnetic tunnel element using this thin film A laminated ferrimagnetic thin film consists of two ferromagnetic layers and a non-magnetic intermediate layer sandwiched therebetween. The respective ferromagnetic layers are magnetically coupled in an anti-ferromagnetic manner through the non-magnetic intermediate... | 10/09/2007 |
| 7260884 | Method of manufacturing a drum assembly associated with video tape machine A method of manufacturing a drum assembly associated with a digital betacam video tape machine is disclosed. The method includes providing a helical scan drum assembly having a stationary upper drum, a stationary lower drum and a plurality of rotating read/write hea... | 08/28/2007 |
| 7116522 | System and method related to a flexible circuit A tape drive comprises a magnetic head and a flexible circuit coupled to the magnetic head. The flexible circuit comprises a rolling loop and a double layer portion that extends at least partially through the rolling loop. ... | 10/03/2006 |
| 7042679 | Magnetic head device having magnetic head and base plate interconnected by folding flexible wiring board A magnetic head device includes terminal pads formed on a side surface of a magnetic head, the magnetic head being installed on the edge of one surface side of a base plate; and a flexible wiring board comprising a connection terminal portion connected to each of th... | 05/09/2006 |
| 6972931 | Write/read head assembly with wear parts A read/write head of a magnetic tape drive is provided, where the matrix write head is provided as a part of an overall flat structure that utilizes the atmospheric pressure to hold the tape against the operational surface of the write head. The read head portion is... | 12/06/2005 |
| 6690528 | Recording and reproduction apparatus A recording and reproduction apparatus has a medium door which is disposed on the front of a medium insertion slot and opens or closes the medium insertion slot. An opening and closing mechanism allows the medium door to enter the medium insertion slot in... | 02/10/2004 |
| 6522499 | Magnetic head and magnetic head assembly with conductive spring members The present invention provides a magnetic head including a plurality of magnetic head elements disposed on a head support in a direction across a magnetic tape and a plurality of connection terminals disposed on the head support, for each of the magnetic ... | 02/18/2003 |
| 5910866 | Device for connecting signals to a tape reproducing apparatus in which a signal transmitting head is biased to abut a magnetic head of a tape reproducing apparatus A connection device, loaded on a tape reproducing apparatus adapted for reproducing a magnetic tape, for transmitting an output signal from a sound source to the tape reproducing apparatus has a housing, a signal transmitting head, a transmission mechanis... | 06/08/1999 |
| 5870246 | Reference bridge for supporting a tape cartridge within a tape drive A floating support for a tape cartridge inserted into a tape drive, the floating support holding a magnetic head and resiliently supported off stationary structure in the tape drive. The floating support resiliently clamps portions of the cartridge agains... | 02/09/1999 |
| 5822160 | Full erase head with guide portion being supported by the tape guide post of VCR A full erase head assembly for erasing a signal recorded on a tape includes a full erase head, a guide post installed on a deck base for guiding the tape, a guide portion formed on a first side of the full erase head, the guide portion being supported by ... | 10/13/1998 |
| 5563751 | Longitudinal bending interface for thick film magnetic recording A magnetic read/write head suspension assembly for achieving high magnetic head compliance with at least one edge track of the MOF layer of relatively stiff photographic filmstrips particularly during photofinishing operations. The filmstrip has an emulsi... | 10/08/1996 |
| 5552947 | Supporting apparatus for a magnetic head A magnetic head supporting mechanism for supporting a magnetic head for writing and reading information on a magnetic layer of a photographic film by tracing the information with the magnetic head in a predetermined conveyance direction of the photographi... | 09/03/1996 |
| 5535062 | Magnetic reading and/or recording apparatus for reading and/or recording information on a magnetic information track on a photosensitive medium A magnetic reading and/or recording apparatus for reading and/or recording information from/on a magnetic information track on a web comprises a magnetic reading and/or recording element and a flexible member for supporting the magnetic reading and/or rec... | 07/09/1996 |
| 5450262 | Magnetic-tape apparatus with pivotably mounted magnetic head A magnetic-tape apparatus has a magnetic-head unit with a magnetic head having a head face for guiding a magnetic tape. The magnetic head has transducing gaps for writing and/or reading information onto/from the magnetic tape. The magnetic-head unit furth... | 09/12/1995 |
| 5444588 | Magnetic erasing head with structure for retain the head in a hole of the base of a video cassette recorder and plugging the head into a circuit board Disclosed is a head structure for accomplishing a wireless structure of a video cassette recorder and for improving its assembling work. The head has a body for supporting a head portion for recording, erasing and/or reproducing data on a tape. A pair of ... | 08/22/1995 |
| 5124866 | Recording head core yoke with full length core support A yoke for supporting a magnetic recording core adjacent a moving recording tape is disclosed. The core has two major surfaces, two side walls, and upper and lower walls. Two wound wire coils are mounted to the core adjacent respective side walls and exte... | 06/23/1992 |
| 5016130 | Retaining device for a magnetic head Grooves are formed on the armor portion of a magnetic head. Elastic pieces having nails for linking to the grooves of the head, and a concave portion for positioning the head are integrally molded with a mounting arm for mounting the head. Linkage of the ... | 05/14/1991 |
| 4905111 | Damping material of an improved formulation for use on a magnetic head A damping material (19) is provided on one of the two side faces (7, 8), of a magnetic head having two plate shaped ferrite core limbs (3, 4). The material consists of a synthetic resin filled with less than 30% by volume of filler having a density of mor... | 02/27/1990 |
| 4750066 | Grounding for magnetic head unit in a plastic mount Magnetic head unit (1) in a plastic mounting (3) which encloses the magnetic head casing (30) behind the head face (4). The plastic mounting (3) has tape guide elements (7) which guide the magnetic tape moved along the head face (4) in the correct azimuth... | 06/07/1988 |
| 4605978 | Clip system for immoveably mounting a magnetic head on a support A clip system for mounting a magnetic head on a support includes a support having at least one upwardly extending flange for holding the head immoveable in at least one direction along a first dimension. The head has at least one index cavity in its upfac... | 08/12/1986 |
| 4216505 | Transducer head vibration dampening A metallic mass is placed into frictional engagement with a transducer head structure. Vibrations of such transducer head structure are dampened by relative displacement between the metallic mass and frictionally engaged transducer head structure. Plastic... | 08/05/1980 |
| 3978522 | Method and apparatus for mounting a cassette record-playback head An apparatus and method for accurately locating a record-playback head with respect to a tape carried within a conventional tape cassette. The cassette is oriented within a cradle by means of a pair of parallel guide pins which engage the alignment openin... | 08/31/1976 |
| 3949421 | Cassette tape recorder with heads mounted on a slide for adjustment A cassette tape recorder in which the magnetic sound-recording heads and the erasing heads are adjusted to rest on the tape by means of a relative displacement towards the cassette, these heads being fitted on to a common slide unit incorporating sensor e... | 04/06/1976 |
