Patents by Inventor David R. Williams
David R. Williams has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5814613Abstract: The invention provides an antibiotic designated LL-E19020 Gamma which is derived from the microorganism Streptomyces lydicus ssp. tanzanius NRRL 18036.Type: GrantFiled: September 9, 1991Date of Patent: September 29, 1998Assignee: Roche Vitamins Inc.Inventors: Guy Thomas Carter, David R. Williams, Joseph D. Korshalla
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Patent number: 5814615Abstract: The invention provides an antibiotic designated LL-E19020 Alpha.sub.1 which is derived from the micro-organism Streptomyces lydicus ssp. tanzanius NRRL 18036.Type: GrantFiled: September 9, 1991Date of Patent: September 29, 1998Assignee: Roche Vitamins Inc.Inventors: Guy Thomas Carter, David R. Williams, Joseph D. Korshalla
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Patent number: 5777719Abstract: A method of and apparatus for improving vision and the resolution of retinal images is described in which a point source produced on the retina of a living eye by a laser beam is reflected from the retina and received at a lenslet array of a Hartmann-Shack wavefront sensor such that each of the lenslets in the lenslet array forms an aerial image of the retinal point source on a CCD camera located adjacent to the lenslet array. The output signal from the CCD camera is acquired by a computer which processes the signal and produces a correction signal which may be used to control a compensating optical or wavefront compensation device such as a deformable mirror. It may also be used to fabricate a contact lens or intraocular lens, or to guide a surgical procedure to correct the aberrations of the eye. Any of these methods could correct aberrations beyond defocus and astigmatism, allowing improved vision and improved imaging of the inside of the eye.Type: GrantFiled: December 23, 1996Date of Patent: July 7, 1998Assignee: University of RochesterInventors: David R. Williams, Junzhong Liang
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Patent number: 5716114Abstract: A drawer operating system for controlling a drawer having a sliding direction, the drawer defined by a front end and a rear end and partitioned by walls into a plurality of bins consecutive with one another along the sliding direction for holding various dispensable items, the drawer housed in a cabinet and arranged to move between a closed position and graduated, progressively open positions to allow access to one or more bins and the contents stored therein, the system including a linear encoder for monitoring the position and direction of movement of the drawer, including the length of opening the drawer on its preceding excursion, and for producing a plurality of electronic signals specific to the position and movement of the drawer, a drawer stop device arranged between the drawer and the cabinet, a controller for receipt of the electronic signals, and an electric solenoid, including a spring-loaded plunger slidingly mounted therein, for activation by the controller, after the beginning of the drawer-opeType: GrantFiled: June 7, 1996Date of Patent: February 10, 1998Assignee: Pyxis CorporationInventors: William K. Holmes, David R. Williams
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Patent number: 5632972Abstract: A method for minimizing damage to gingival and periodontal tissue is provided through steps that include delivering a first composition containing a zinc salt to a receptacle, delivering a second composition containing a bicarbonate salt to the same receptacle, and transferring within five minutes of delivery to the receptacle the combination into the mouth onto the gingival and periodontal tissues. Where the compositions are semi-solid such as in a toothpaste and/or gel, the receptacle is ordinarily a toothbrush. Liquid compositions such as mouthrinses may employ an expectorant cup as a receptacle.Type: GrantFiled: June 30, 1994Date of Patent: May 27, 1997Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.Inventors: David R. Williams, Christine W. Ryles, Stephen R. Barrow
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Patent number: 5616313Abstract: A method for minimizing damage to gingival and periodontal tissue is provided through steps that include delivering a first composition containing a zinc salt to a receptacle, delivering a second composition containing a bicarbonate salt to the same receptacle, and transferring within five minutes of delivery to the receptacle the combination into the mouth onto the gingival and periodontal tissues. Where the compositions are semi-solid such as in a toothpaste and/or gel, the receptacle is ordinarily a toothbrush. Liquid compositions such as mouthrinses may employ an expectorant cup as a receptacle.Type: GrantFiled: April 11, 1995Date of Patent: April 1, 1997Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.Inventors: David R. Williams, Christine W. Ryles, Stephen R. Barrow
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Patent number: 5601445Abstract: A connector for structurally and electronically interconnecting modular electronic components which permits as single connection to provide both electrical communication and structural support between the modular components is disclosed. The interconnector may be a separate component from the housing for the electronic components or may be integrated therein.Type: GrantFiled: March 13, 1995Date of Patent: February 11, 1997Assignee: IMED CorporationInventors: Jeffery D. Schipper, David R. Williams
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Patent number: 5577497Abstract: A dry powder medicine inhaler has an impeller non-concentrically disposed in a mixing chamber. A motor spins the impeller at high speed. A plunger introduces a dose of powdered medicine into the chamber so that all powder particles are available for intermixing disaggregation and comminution. An aperture receives a first stream of air and passes it towards the mouthpiece for inhalation by the user. A wall has at least one aperture for diverting a portion of a main air stream into the aerosolizing chamber to mix with the particles to form a fine, low-density, low velocity, dry mist of powdered medicine for inhalation by the user.Type: GrantFiled: October 14, 1993Date of Patent: November 26, 1996Assignee: Dura Pharmaceuticals, Inc.Inventors: Mark B. Mecikalski, David R. Williams, David O. Thueson
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Patent number: 5554358Abstract: A dental product is provided in a dual-compartment dispenser that includes a first and second composition in respective compartments thereof. The first composition includes a zinc salt while the second composition includes a bicarbonate salt. Preferably the first composition also contains a peroxygen compound or a C.sub.2 -C.sub.20 carboxylic acid. The zinc salt in combination with the bicarbonate salt achieves an enhanced antitartar effect.Type: GrantFiled: April 11, 1995Date of Patent: September 10, 1996Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.Inventors: David R. Williams, Christine W. Ryles, Stephen R. Barrow
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Patent number: 5494759Abstract: Ink jet printing materials comprise a support and an ink receiving layer containing a pigment, a hydrophilic binder comprising polyvinyl alcohol, vinylpyrrolidone homopolymer and/or vinylpyrrolidone copolymer, and a quaternary ammonium compound.Type: GrantFiled: June 17, 1994Date of Patent: February 27, 1996Assignee: Felix Schoeller jr. Foto-und Spezialpapiere GmbH & Co. KGInventors: David R. Williams, William L. Quartz, Klaus B. Kasper, Dieter Becker, Gerhard Dransmann
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Patent number: 5492112Abstract: A dry powder medicine inhaler has an impeller non-concentrically disposed in a mixing chamber. A motor spins the impeller at high speed. A plunger introduces a dose of powdered medicine into the chamber so that all powder particles are available for intermixing disaggregation and comminution. An aperture receives a first stream of air and passes it towards the mouthpiece for inhalation by the user. A wall has at least one aperture for diverting a portion of a main air stream into the aerosolizing chamber to mix with the particles to form a fine, low-density, low velocity, dry mist of powdered medicine for inhalation by the user.Type: GrantFiled: April 14, 1994Date of Patent: February 20, 1996Assignee: Dura Pharmaceuticals, Inc.Inventors: Mark B. Mecikalski, David R. Williams, David O. Thueson
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Patent number: 5460294Abstract: A subassembly for use in a computerized medicine dispensing station is disclosed. The station has a cabinet for housing openable drawers in stacked arrangement containing dispensable pharmaceutical items. The subassembly includes a drawer having a base plate, side walls, and a front panel defining an interior compartment. The drawer can be inserted into the cabinet. The interior compartment of the drawer is divided into subcompartments, each subcompartment defined by spaced apart side walls and a curved rear wall. Each subcompartment contains a movable magazine mounted therein for racetrack-like movement therein between the spaced apart side wall and the curved rear wall. The magazine includes individual open cups for containing single dispensable pharmaceutical items therein. The front panel has an aperture which is normally closed and locked.Type: GrantFiled: May 12, 1994Date of Patent: October 24, 1995Assignee: Pyxis CorporationInventor: David R. Williams
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Patent number: 5456902Abstract: A dental product is provided in a dual-compartment dispenser that includes a first and second composition in respective compartments thereof. The first composition includes a zinc salt while the second composition includes a bicarbonate salt. Preferably the first composition also contains a peroxygen compound or a C.sub.2 -C.sub.20 carboxylic acid. The zinc salt in combination with the bicarbonate salt achieves an enhanced antitartar effect.Type: GrantFiled: September 2, 1994Date of Patent: October 10, 1995Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.Inventors: David R. Williams, Christine W. Ryles, Stephen R. Barrow
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Patent number: 5372803Abstract: A dental product is provided in a dual-compartment dispenser that includes a first and second composition in respective compartments thereof. The first composition includes a zinc salt while the second composition includes a bicarbonate salt. Preferably the first composition also contains a peroxygen compound or a C.sub.2 -C.sub.20 carboxylic acid. The zinc salt in combination with the bicarbonate salt achieves an enhanced antitartar effect.Type: GrantFiled: September 2, 1993Date of Patent: December 13, 1994Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.Inventors: David R. Williams, Christine W. Ryles, Stephen R. Barrow
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Patent number: 5372802Abstract: An oral composition and method is provided that includes a peroxygen compound such as hydrogen peroxide, a fluoride-containing anticaries agent and a zinc compound such as zinc citrate. The presence of the zinc compound inhibits decomposition that ordinarily would be induced by the presence of fluoride.Type: GrantFiled: September 2, 1993Date of Patent: December 13, 1994Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.Inventors: Stephen R. Barrows, Christine W. Ryles, David R. Williams
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Patent number: 5346132Abstract: A device for generating a spray of mist or fine droplets includes a spinning rotor within a mist chamber. The rotor has inner walls which taper conically outwardly from the open bottom of the rotor to a hole near the top of the rotor. Liquid is pumped by a finger actuated pump from a cartridge module into a bowl surrounding the bottom end of the rotor. A spray is created as the liquid is formed into droplets as it passes through the hole in the rotor under centrifugal force. A directional light source is used for aiming the spray.Type: GrantFiled: November 12, 1992Date of Patent: September 13, 1994Assignee: Gary S. HahnInventors: Gary S. Hahn, David R. Williams
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Patent number: 5332124Abstract: A disposable refill cartridge, for use with a reusable base and a reusable dispensing head for the simultaneous coextension of at least two flowable materials. The disposable refill cartridge has a hollow inner cylinder for containing a flowable material. The inner cylinder has a first generally open top end which can be temporarily sealed until the refill cartridge is combined with a reusable dispensing head. The second or bottom end of the refill cylinder telescopically and slidingly accommodates a piston head which is compressibly engagable with a piston rod of the reusable base. The piston head rides sealingly along the interior walls of the inner refill cylinder when compressed by the piston rod forces the flowable material to flow out of the refill cylinder and through outlet means of the dispensing head. Once the flowable material has been expended, the refill cartridge can be discarded and a new one can be used in conjunction with the reusable base and dispensing head.Type: GrantFiled: May 17, 1993Date of Patent: July 26, 1994Assignee: Chesebrough-Pond's, USA Co., A Division of Conopco, Inc.Inventors: Lewis P. Cancro, David R. Williams
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Patent number: 5327883Abstract: An apparatus for aerosolizing a dose of powdered medicine for inhalation, comprising in combination a solid core defining a diskshaped aerosolizing chamber, the chamber defined by spaced-apart, flat front and rear walls terminated by a circumferential wall, the core including a first end piece having formed therein a hollow mouth/nose piece at the front thereof, an impeller non-concentrically disposed in the chamber mounted on a shaft for high-speed powered rotation about a fixed axis, a plunger for instantaneously introducing a full dose of powdered medicine into the aerosolizing chamber so that all particles thereof are available for intermixing disaggregation and comminution, an aperture for receiving a first stream of air interior the core and passing it towards the mouthpiece for inhalation by the user, and, a wall having formed therein at least one aperture for diverting a portion of the first stream into a second stream of air for sweeping through the aerosolizing chamber to mix with the particles to fType: GrantFiled: May 20, 1991Date of Patent: July 12, 1994Assignee: Dura Pharmaceuticals, Inc.Inventors: David R. Williams, Mark B. Mecikalski, David O. Thueson
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Patent number: 5277195Abstract: A portable hand-held spirometer capable of being accommodated in a pocket or handbag, comprising a chassis, an enclosed curved passageway in communication with the chassis including an inlet, for receiving the forced expiration of the user, and an outlet, through which the expiration may be exhausted, a vane pivotally mounted in the passageway, between the inlet and the outlet, for moving under the influence of the user's forced expiration from a first position closing off the passageway to a succession of other open positions forming an ever widening gap between the vane and part of the passageway as the vane moves therethrough, a bottom cover for incrementally measuring various positions of the vane, throughout its travel as a function of time, a device to convert the measurements to various diagnostic parameters applicable to the user's lung condition, and a device to report the values.Type: GrantFiled: February 3, 1992Date of Patent: January 11, 1994Assignee: Dura Pharmaceuticals, Inc.Inventor: David R. Williams
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Patent number: 5263596Abstract: A sub-assembly for use in a medication dispenser station for controller actuated dispensing of pharmaceutical items in single quantities from locked storage and allowing rapid reloading of more items all under extreme security and heightened accountability, comprising a chassis for insertion into the cabinet for secure mounting therein, including an unlockable front reloading access door, pharmaceutical retrieval tray depending therebelow and a discharge chute opening from interior the access door down into the tray, at least one narrow stock-supporting magazine slidably mounted in the chassis extending rearward from inside the front access door for retaining a stock of pharmaceutical items in vertically oriented, front-to-rear alignment therein, an ejector interconnected the magazine for moving the forward-most pharmaceutical item in the magazine into position over the discharge chute for dispensing into the retrieval tray upon command while retaining the other items in locked storage in the magazine, a bi-sType: GrantFiled: January 22, 1993Date of Patent: November 23, 1993Inventor: David R. Williams