Abstract: A disk drive is disclosed comprising a head disk assembly (HDA) filled with a gas, the HDA comprising a head actuated over a disk, and an electrical heating element. A pressure inside the HDA is measured, and the electrical heating element is heated for a first heating time. A rate of temperature change of the electrical heating element is measured, and the gas leaking from the HDA is detected in response to the pressure and the rate of temperature change.

Abstract: A data storage device (DSD) is disclosed comprising a non-volatile memory (NVM), such as a disk or non-volatile semiconductor memory, and control circuitry for detecting a power failure condition. A frequency range of a supply voltage from a first frequency to a second frequency is extracted, wherein the first frequency is greater than ten hertz, the second frequency is higher than the first frequency, and the second frequency is less than one megahertz. The power failure condition is detected in response to the extracted frequency range of the supply voltage.

Abstract: A kiteboarding harness and method of kiteboarding with the harness. The harness has a hook extending radially outward from the harness and slidably attached to the harness for lateral repositioning of the hook on the harness about the anteroposterior axis of a human wearing the harness.

Abstract: The present invention relates to a foot and ankle exercise device. The exercise device may include a foot strap, a pull strap, a handle, and a resistance band. The foot strap may be adjustable to secure the device to a user's foot. The pull strap may have a first end attached to the foot strap. The handle may be disposed on a second end of the pull strap and may be configured to allow the user to apply tension to the pull strap. The resistance band may be disposed on the pull strap between the first end and the second end of the pull strap.

Abstract: Provided are aluminum chelates having the formula (I). Also provided are compositions having these chelates, methods of producing these chelates, and methods of modifying the viscosity of a liquid or a semisolid using these chelates.

Abstract: The present invention relates to a foot and ankle exercise device. The exercise device may include a foot strap, a pull strap, a handle, and a resistance band. The foot strap may be adjustable to secure the device to a user's foot. The pull strap may have a first end attached to the foot strap. The handle may be disposed on a second end of the pull strap and may be configured to allow the user to apply tension to the pull strap. The resistance band may be disposed on the pull strap between the first end and the second end of the pull strap.

Abstract: A magnetically activated switch assembly is provided. The magnetically activated switch assembly includes a magnet and a magnetic circuit. The magnetic circuit includes a magnetically activated switch, a first set of flux conductors, and a second set of flux conductors. The first set of flux conductors has first flux conductor flanges adapted to conduct flux from ends of the magnet. The second set of flux conductors is slidingly positioned relative to the first set of flux conductors and is adapted to conduct flux from the first set of flux conductors to the magnetically activated switch. The first set of flux conductors are adapted to rotate clockwise or counter-clockwise and to tilt up or down. The first magnetic circuit is adapted to conduct flux to activate the magnetically activated switch only when the first flux conductor flanges are rotationally aligned with ends of the magnet and tilted to an operational position.

Abstract: Provided are aluminum chelates having the formula (I). Also provided are compositions having these chelates, methods of producing these chelates, and methods of modifying the viscosity of a liquid or a semisolid using these chelates.

Abstract: A conveyor warewasher includes splash curtains that function differently according to their orientation. The top connection part of the splash curtains and the connections mounted on the warewasher are designed to attach the curtain only when the curtain is hung in the proper orientation and not when the curtain is hung in reverse. A splash curtain for a warewasher includes functionally distinct front and rear sides. The arrangement of hook-receptive slots on the splash curtain is asymmetric so that the hook arrangement that they will receive differs when the curtain's orientation is reversed.

Abstract: An apparatus for sensing relative positions of mechanically coupled devices. The apparatus includes a magnetically actuated switch connected to a set of flux conductors to form a switch assembly. A permanent magnet is affixed to a set of flux conductors to form a magnet assembly. The flux conductors are positioned adjacently to conduct flux from the permanent magnet to the magnetically actuated switch. Movement of either assembly results in the reduction of flux conduction between the magnet and the magnetically actuated switch. The apparatus can be integrated into a helmet mount for night vision goggles to sense the relative position of the helmet mount for controlling the operation of the night vision goggle.

Abstract: A magnetically activated switch assembly is provided. The magnetically activated switch assembly includes a magnet and a magnetic circuit. The magnetic circuit includes a magnetically activated switch, a first set of flux conductors, and a second set of flux conductors. The first set of flux conductors has first flux conductor flanges adapted to conduct flux from ends of the magnet. The second set of flux conductors is slidingly positioned relative to the first set of flux conductors and is adapted to conduct flux from the first set of flux conductors to the magnetically activated switch. The first set of flux conductors are adapted to rotate clockwise or counter-clockwise and to tilt up or down. The first magnetic circuit is adapted to conduct flux to activate the magnetically activated switch only when the first flux conductor flanges are rotationally aligned with ends of the magnet and tilted to an operational position.

Abstract: A method and incorporated assembly is provided to enhance structural rigidity to a computer environment having at least one rack for housing electronic components. The assembly comprises a stiffener component mountable to a horizontal side of the rack; a support component mountable in a substantially horizontal direction on a vertical side of the rack to provide rotational support of the rack; and an enhancer component being mountable to at least one side of the rack.

Abstract: A family of crystalline aluminosilicate zeolites designated UZM-8HS and derived from UZM-8 have been synthesized. The aluminum content of the UZM-8HS is lower than that of the starting UZM-8 thus changing its ion exchange capacity and acidity. These UZM-8HS are represented by the empirical formula: M1an+Al(1?x)ExSiy?Oz? and are prepared by treatments such as acid extraction and AFS treatments.

Abstract: A series of crystalline alumino-silicate zeolites identified as UZM-12 have been synthesized. These UZM-12 compositions have the ERI topology, a Si/Al >5.5 and can be prepared as nanocrystallites having an average particle size of about 15 to about 50 nanometers and a spheroidal morphology. The UZM-12 composition can be treated to remove at least a fraction of the framework aluminum atoms thereby providing zeolites with a Si/Al 75.75 and identified as UZM-12HS. Both the UZM-12 and UZM-12HS can catalyze various hydrocarbon conversion processes.

Abstract: A disk drive is disclosed comprising an interface for receiving a primary supply voltage and a secondary supply voltage from a host computer. The primary supply voltage is applied to the windings of a multi-phase spindle motor in a commutation sequence, and the secondary supply voltage is connectable to a center tap of the windings.

Abstract: A process is disclosed for enhancing the production of light olefins using a catalyst with small pores. The catalyst comprises a molecular sieve having 10 membered rings with channels of limited length. The molecular sieve has a high silica to alumina ratio and has pores sized to limit production of aromatics in the cracking process.

Abstract: A process is disclosed for enhancing the production of light olefins using a catalyst with small pores. The catalyst comprises a molecular sieve having 10 membered rings with channels of limited length. The molecular sieve has a high silica to alumina ratio and has pores sized to limit production of aromatics in the cracking process.

Abstract: A disk drive is disclosed comprising an interface for receiving a supply voltage from a host computer and control circuitry for controlling at least one operation of the disk drive. The supply voltage is applied to the windings of a multi-phase spindle motor in a commutation sequence during a normal operating mode, and a secondary voltage supplied by a center tap of the windings is used to power the control circuitry during the normal operating mode.

Abstract: The system includes a back panel that attaches to the backrest of the wheelchair. The back panel is ornamented and/or decorated in a selected motif. A top element and side panel elements are provided that attach to the back panel. The top element extends above the occupant of the wheelchair and the side elements protrude from the side of the wheelchair. Both the top element and the side elements are ornamented and/or decorated in the same motif, as is the back panel. Decorative wheel attachments are also provided. The decorative wheel attachments attach to at least two of the wheels of the wheelchair, wherein the decorative wheel attachments share the same ornamentation motif as do the other elements in the assembly.

Abstract: A split actuator comprising two spring coupled actuators that share a common pivot bearing. The two reduced inertia actuators permit overlapping motions during a seek operation thereby reducing dead times in transfer of data between disk and transducers disposed on the actuators. A spring member that spring couples the two actuators boosts relative motions by storing and releasing spring potential energy selectively. The spring member is also configured so as to substantially restrict the relative motions of the two actuators to rotational motions about a common axis of the common pivot bearing. Rigidity of the spring member to non-rotational relative motions, as well as tuning of the spring member to provide a rigid response to selected frequencies, the spring member in conjunction with the common pivot bearing result in mechanical disturbance being substantially common to the two actuators, thereby allowing predictable and manageable disturbance corrections.