Adjustment Detail Patents (Class 360/255.4)
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Patent number: 8867174Abstract: Systems and methods for improving loading and unloading of a read or write head onto and off of a disk medium. Particular embodiments may assist in loading a read or write head to, or unloading a read or write head from, a load location over a surface of a disk medium in such a manner that damage to the surface of the disk medium (e.g., load location) is either prevented or minimized. The prevention or reduction of damage may be achieved by ensuring that a read or write head has sufficient clearance over the surface of a disk medium as the read or write head moves over the surface (e.g., as the head moves parallel to the surface) during a head loading or unloading process.Type: GrantFiled: August 27, 2013Date of Patent: October 21, 2014Assignee: Western Digital (Fremont), LLCInventors: Eugene Shapiro, Jagdeep S. Buttar, Trung Vinh, Tahir A. Ali
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Patent number: 8553365Abstract: Systems and methods for improving loading and unloading of a read or write head onto and off of a disk medium. Particular embodiments may assist in loading a read or write head to, or unloading a read or write head from, a load location over a surface of a disk medium in such a manner that damage to the surface of the disk medium (e.g., load location) is either prevented or minimized. The prevention or reduction of damage may be achieved by ensuring that a read or write head has sufficient clearance over the surface of a disk medium as the read or write head moves over the surface (e.g., as the head moves parallel to the surface) during a head loading or unloading process.Type: GrantFiled: February 21, 2012Date of Patent: October 8, 2013Assignee: Western Digital (Fremont), LLCInventors: Eugene Shapiro, Jagdeep S. Buttar, Trung Vinh, Tahir A. Ali
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Patent number: 7821740Abstract: A ramp for hard discs which is obtained by molding a resin composition containing (A) a polyoxymethylene resin, and (B) at least one polymeric lubricant selected from the group consisting of (b-1) a polyolefin resin, and (b-2) a polymer obtained by polymerizing an isocyanate compound and a polyalkylene oxide, and which has an excellent sliding property and no deterioration of sliding property due to solvent washing.Type: GrantFiled: July 9, 2007Date of Patent: October 26, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Mitsuhiro Horio, Hiroshi Tsukahara, Yuuji Yoshinaga
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Patent number: 7365946Abstract: A recording/reproducing apparatus includes a cartridge holder which is rotatably provided on a chassis, into which a disc cartridge enclosing a magneto-optical disc is inserted, and which holds the inserted disc cartridge, an optical pickup that irradiates laser light onto the magneto-optical disc, a magnetic head that is provided on the upper surface side of the cartridge holder facing the optical pickup and that is moved between a lowered position close to the optical disc and a raised position away from the magneto-optical disc, at least one first sliding member that is movably provided on the cartridge holder, a head raising/lowering mechanism that moves the magnetic head between the upper position and the lower position by moving the first sliding member, and a driving mechanism that is disposed on a lower surface side of the chassis, engages the sliding member, and moves the first sliding member.Type: GrantFiled: November 7, 2003Date of Patent: April 29, 2008Assignee: Sony CorporationInventors: Mamoru Nakamura, Tadami Nakamura, Takashi Takamatsu, Manabu Sato
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Patent number: 7159299Abstract: A head stack assembly comb (154) for maintaining the heads (44) of a head stack assembly (26) in spaced relation is disclosed. The head stack assembly comb (154) includes a comb body (158) and a latch (218). The comb body (158) engages an upper surface of an uppermost actuator arm (30a) in the head stack assembly (26). The latch (218) engages a lower surface of this same actuator arm (30a). When installing the comb (154), the comb (154) is pivoted relative to the head stack assembly (26). This brings the latch (218) into engagement with the noted actuator arm (30a) and causes the latch (218) to pivot in a first direction against a spring (214), and then in the opposite direction by the action of the spring (214) on the latch (218) to engage the latch (218) with the lower surface of the noted actuator arm (30a).Type: GrantFiled: April 14, 2003Date of Patent: January 9, 2007Assignee: Maxtor CorporationInventors: Tom E. McMunigal, John D. McCrandall
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Patent number: 6941642Abstract: Disclosed is a head stack load comb used in the controlled loading of a head of a head stack assembly (HSA) onto a disk during the assembly of a disk drive. The HSA includes an actuator arm, a head, and a loading surface. The load comb includes a base structure and at least one ramp finger projecting approximately perpendicularly from the base structure. In order to load the head in a controlled manner onto the disk, the loading surface of the HSA is rotated along the ramp finger until the head is in a load position and then the base structure is actuated in a vertical direction such that the ramp finger is correspondingly actuated in the vertical direction towards the disk until the head is loaded onto the disk.Type: GrantFiled: December 24, 2002Date of Patent: September 13, 2005Assignee: Western Digital Technologies, Inc.Inventors: Jai N. Subrahmanyam, Serge Hauert