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Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Steering laser beam while etching optical servo tracks for magnetic disks. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026007

A beam of light used to etch servo tracks on a magnetic disk is steered with an acousto-optical device to maintain the beam in concentrical patterns while mechanically moving the optics which generate the beam of light continuously radially of the disk.


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Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Acousto-optical intensity control of laser beam. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/025341

The intensity of a beam of light used to etch concentric servo tracks (12) on a magnetic medium is adjusted with an acousto-optical device to maintain the energy density delivered by the beam substantially constant while the optics (71) which generate the beam move radially of the disk (61).


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Fred Thomas Fred Thomas
Thomas Fred Charles, Johnson Paul R: Pneumatic hub locking device for etching optical servo tracks on magnetic disks. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/025343

An apparatus for etching optical servo tracks on a magnetic storage disk (11) comprises optics for generating a beam of light for etching the servo tracks and a spindle (15) for rotating the disk (11) in proximity to the optics. The device further comprises a center pin (16) at the center of rotatio ...


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Fred Thomas Fred Thomas
Thomas Fred Charles, Bero James, Short Robert, Johnson Paul R: Apparatus for and method of verifying etching of optical servo information on magnetic media. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026004

An apparatus and method for etching a point on the surface of a magnetic medium to reduce the reflectivity of the point and for verifying that proper etching occured. A light source (40) provides a collimated incident beam of light (42). The incident beam is focused to a point on the medium (57) and ...


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Reiboldt Howard Norman, Kock Ronald Wayne, Drobish James Lee: Thin film beam spring vent valve and method and apparatus for assembling it. The Procter & Gamble Company, REED T David, December 23, 1993: WO/1993/025321 (6 worldwide citation)

A thin film beam spring valve (21), a method and apparatus for assembling it are provided. The thin film beam spring vent valve (21) is provided in a squeeze pump package (22). The package includes an outer resilient bottle (22) and a flexible bag (24) with a relatively rigid fitment (30). The outer ...


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Forrow Nigel, Walters Stephen: Mediators to oxidoreductase enzymes. Medisense, Forrow Nigel, Walters Stephen, RUFFLES Graham Keith, December 23, 1993: WO/1993/025898 (5 worldwide citation)

Half-sandwich complexes of transition metals having a single $g(p)-ligand with delocalised $g(p) bonding are of use in mediating electron transfer between an electrode and a redox protein, for example an oxidoreductase enzyme such as in an amperometric enzyme sensor. Suitable compounds include compl ...


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Simard Gilbert: Systeme de distribution de boissons pour bar, Beverage dispensing system for a bar. Azbar, Azbar, ROBIC, December 23, 1993: CA2135904 (4 worldwide citation)

An input device (10) is provided for selecting a mixed beverage, in response to which a plurality of individual manually operated beverage dispensers (14) will dispense predetermined quantities of the beverages to make up a selected mix. Indicators (18) can also be used to inform the bartender that ...


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Bailey James E, Khosla Chaitan, Hughes Dallas E, Galazzo Jorge, Sander Fred C Jr, Rozzell J David, Demodena John: Enhancement of cell growth by expression of cloned oxygen-binding proteins. California Institute Of Technology, KENNEY Ernest J, December 23, 1993: WO/1993/025697 (3 worldwide citation)

Methods for the use of DNA encoding oxygen-binding proteins and related plasmids containing same are disclosed for a range of applications including oxygen supply to cells, growth enhancement, expression of various gene products, enhancement of oxygen-requiring processes, binding and separation of o ...