Patents by Inventor John R. Marshall
John R. Marshall 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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Publication number: 20090137949Abstract: A nozzle assembly for a needle-free injection device. The nozzle assembly includes a nozzle body including an injectate chamber and one or more outlet orifices and a plunger configured to move through the injectate chamber toward the one or more outlet orifices. In some embodiments, the plunger includes a first portion and a second portion removably joined by a frangible region. In some embodiments, the plunger includes extensions configured to couple the plunger to a drive assembly of a needle-free injection device.Type: ApplicationFiled: November 26, 2007Publication date: May 28, 2009Applicant: Bioject Inc.Inventors: Sergio Landau, Daniel E Williamson, John R. Marshall
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Publication number: 20090137948Abstract: Needle-free injection devices having a body, an actuation system, and a delivery system including a drive assembly and configured to receive a nozzle assembly. In some embodiments, the drive assembly includes a spring and a support member configured to restrict movement of the spring in a direction non-parallel to a central axis of the spring. In some embodiments, the drive assembly includes a transmission assembly configured to couple a drive source with the actuation system upon engagement of a nozzle assembly with the drive assembly. In some embodiments, the body is configured to acoustically seal an interface between the delivery system and the actuation system. In some embodiments, the body includes a gripping member selectively extendable from the body.Type: ApplicationFiled: November 26, 2007Publication date: May 28, 2009Applicant: Bioject Inc.Inventors: John R. Marshall, Daniel E. Williamson, Sergio Landau
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Patent number: 7238167Abstract: A needle-free injection device is described. The injection device includes a user-grippable housing and a syringe assembly movably secured to the housing. The syringe assembly is configured to expel injectable fluid out of a nozzle upon application of pressurized gas to the syringe assembly. The injection device also includes a pressurized gas delivery mechanism disposed within the housing and configured to selectively apply pressurized gas to the syringe assembly. The pressurized gas delivery mechanism is at least partly actuated by pressing the nozzle onto an injection site so that the syringe assembly moves relative to the housing.Type: GrantFiled: January 13, 2004Date of Patent: July 3, 2007Assignee: Bioject Inc.Inventors: Sergio Landau, Daniel E. Williamson, John R. Marshall
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Patent number: 6935384Abstract: A method and apparatus for providing high throughput injections is provided. The invention provides a filling device adapted to deliver injectate from a common reservoir to a plurality of disposable fluid injection assemblies and a reusable propulsion assembly adapted to receive a filled disposable fluid injection assembly and deliver an injection to a patient.Type: GrantFiled: February 19, 2003Date of Patent: August 30, 2005Assignee: Bioject Inc.Inventors: Sergio Landau, John R. Marshall
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Publication number: 20040199106Abstract: A needle-free injection device is described. The injection device includes a user-grippable housing and a syringe assembly movably secured to the housing. The syringe assembly is configured to expel injectable fluid out of a nozzle upon application of pressurized gas to the syringe assembly. The injection device also includes a pressurized gas delivery mechanism disposed within the housing and configured to selectively apply pressurized gas to the syringe assembly. The pressurized gas delivery mechanism is at least partly actuated by pressing the nozzle onto an injection site so that the syringe assembly moves relative to the housing.Type: ApplicationFiled: January 13, 2004Publication date: October 7, 2004Inventors: Sergio Landau, Daniel E. Williamson, John R. Marshall
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Publication number: 20040159364Abstract: The present invention provides method and apparatus for providing high throughput injections. In one embodiment the invention provides a filling device adapted to deliver injectate from a common reservoir to a plurality of disposable fluid injection assemblies and a reusable propulsion assembly adapted to receive a filled disposable fluid injection assembly and deliver an injection to a patient.Type: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Applicant: Bioject Inc.Inventors: Sergio Landau, John R. Marshall
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Patent number: 6676630Abstract: A needle-free injection device. The injection device includes a user-grippable housing and a syringe assembly movably secured to the housing. The syringe assembly is configured to expel injectable fluid out of a nozzle upon application of pressurized gas to the syringe assembly. The injection device also includes a pressurized gas delivery mechanism disposed within the housing and configured to selectively apply pressurized gas to the syringe assembly. The pressurized gas delivery mechanism is at least partly actuated by pressing the nozzle onto an injection site so that the syringe assembly moves relative to the housing.Type: GrantFiled: June 4, 2002Date of Patent: January 13, 2004Assignee: Bioject Medical Technologies, Inc.Inventors: Sergio Landau, Dan Williamson, John R. Marshall
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Publication number: 20030225368Abstract: A needle-free injection device. The injection device includes a user-grippable housing and a syringe assembly movably secured to the housing. The syringe assembly is configured to expel injectable fluid out of a nozzle upon application of pressurized gas to the syringe assembly. The injection device also includes a pressurized gas delivery mechanism disposed within the housing and configured to selectively apply pressurized gas to the syringe assembly. The pressurized gas delivery mechanism is at least partly actuated by pressing the nozzle onto an injection site so that the syringe assembly moves relative to the housing.Type: ApplicationFiled: June 4, 2002Publication date: December 4, 2003Applicant: Bioject Inc.Inventors: Sergio Landau, Dan Williamson, John R. Marshall
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Publication number: 20030126826Abstract: A hinged protective cover for protecting a door threshold during construction or modification of a building or its contents. The cover is attached to a horizontal surface such as a building floor and covers the door threshold to prevent damage from foot traffic, contaminants and grit materials which may become lodged in the threshold. The hinge allows positioning of the protective cover to permit door closure while remaining attached to the floor. This leaves the cover in place for repositioning to the protecting position when the door is reopened and serves as an affirmative reminder to accomplish same.Type: ApplicationFiled: January 7, 2003Publication date: July 10, 2003Inventors: John R. Marshall, David J. Thum
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Patent number: 5692513Abstract: Noninvasive-blood-pressure (NIBP) monitoring apparatus is disclosed which is usable to perform either oscillometric or auscultatory NIBP. The apparatus includes relatively adjustable, noninflatable, pressure-information-providing (PIP) structure usable to apply NIBP-useful pressure to such limb adjacent such vessel. Also included is pressure-changer structure associated with the PIP structure, and operable to adjust the same to a beginning NIBP-useful pressure, and to subsequent NIBP-useful pressures, with such adjustment effecting the availability of pressure information that can be sensed by such sensor structure. The apparatus is preferably constructed for oscillometric NIBP monitoring and includes a reaction band removably fittable on and circumscribingly about the limb of such living subject. The preferred construction is for portable, self-contained, ambulatory usage.Type: GrantFiled: September 30, 1994Date of Patent: December 2, 1997Assignee: Protocol Systems, Inc.Inventors: Charles L. Davis, John R. Marshall
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Patent number: 5351694Abstract: Noninvasive-blood-pressure (NIBP) monitoring apparatus is disclosed which is usable to perform either oscillometric or auscultatory NIBP. The apparatus includes relatively adjustable, noninflatable, pressure-information-providing (PIP) structure usable to apply NIBP-useful pressure to such limb adjacent such vessel. Also included is pressure-changer structure associated with the PIP structure, and operable to adjust the same to a beginning NIBP-useful pressure, and to subsequent NIBP-useful pressures, with such adjustment effecting the availability of pressure information that can be sensed by such sensor structure. The apparatus is preferably constructed for oscillometric NIBP monitoring and includes a reaction band removably fittable on and circumscribingly about the limb of such living subject. The preferred construction is for portable, self-contained, ambulatory usage.Type: GrantFiled: November 16, 1992Date of Patent: October 4, 1994Assignee: Protocol Systems, Inc.Inventors: Charles L. Davis, John R. Marshall
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Patent number: 4185664Abstract: Fluid pressure reducing apparatus adapted for positioned placement in a fluid valve or conduit in which pressure reduction is to be effected. A disc, sleeve or other body member in the flow path defines a plurality of line-of-sight grooves of non-circular cross-section between an inlet and an outlet communicating with the upstream and downstream portions, respectively, of the valve or conduit in which it is placed. Contained positioned transverse within each of the grooves are a plurality of longitudinally spaced circular crests formed of screw threads, parallel thin discs or the like. The crests in this arrangement cooperate with the groove walls to define a single stage pressure reducer in a fluid flow path from inlet to outlet through the longitudinal open spacing therebetween.Type: GrantFiled: April 17, 1978Date of Patent: January 29, 1980Assignee: Dresser Industries, Inc.Inventors: John M. Zabsky, John R. Marshall
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Patent number: 4081540Abstract: Novel imidazole compounds, pesticidal compositions and methods of using them, and their preparation are described. The compounds have the formula ##STR1## in which X is oxygen or sulphur, R.sup.3 is hydrogen, alkyl, alkenyl or optionally substituted alkylthio, alkenylthio, aralkylthio, alkoxyalkyl or alkylthioalkyl, R.sup.4 is alkyl or cycloalkyl, and R.sup.1 and R.sup.2 are each lower alkyl or alkenyl, R.sup.1 is lower alkyl and R.sup.2 is alkoxyalkyl or haloalkyl, or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached, form an optionally substituted heterocyclic ring; and salts thereof. Novel compounds are of particular value against insects e.g. aphids, and against other pests, e.g. acarids.Type: GrantFiled: September 27, 1976Date of Patent: March 28, 1978Assignee: The Boots Company LimitedInventors: Maurice W. Baker, John C. Kerry, Antonin Kozlik, John R. Marshall, Kenneth J. Nichol, David M. Weighton
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Patent number: 4048188Abstract: New imidazole compounds, pesticidal compositions and methods of using them, and their preparation are described. The compounds have the formula ##STR1## in which X is oxygen or sulphur, R.sup.3 is hydrogen, alkyl or alkenyl, R.sup.4 is alkyl or cycloalkyl, and R.sup.1 and R.sup.2 are each lower alkyl or alkenyl, R.sup.1 is lower alkyl and R.sup.2 is alkoxyalkyl or haloalkyl, or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached, from a heterocyclic ring. Novel compounds are of particular value against insects e.g. aphids, and against other pests, e.g. acarids.Type: GrantFiled: January 22, 1975Date of Patent: September 13, 1977Assignee: The Boots Company LimitedInventors: Maurice W. Baker, John C. Kerry, Kenneth J. Nichol, John R. Marshall, David M. Weighton, Antonin Kozlik
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Patent number: 3996366Abstract: Novel imidazole compounds, pesticidal compositions and methods of using them, and their preparation are described. The compounds have the formula ##STR1## in which X is oxygen or sulphur, R.sup.3 is hydrogen, alkyl, alkenyl or optionally substituted alkylthio, alkenylthio, aralkylthio, alkoxyalkyl or alkylthioalkyl, R.sup.4 is alkyl or cycloalkyl, and R.sup.1 and R.sup.2 are each lower alkyl or alkenyl, R.sup.1 is lower alkyl and R.sup.2 is alkoxyalkyl or haloalkyl, or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached, form an optionally substituted heterocyclic ring; and salts thereof. Novel compounds are of particular value against insects e.g. aphids, and against other pests, e.g. acarids.Type: GrantFiled: November 14, 1974Date of Patent: December 7, 1976Assignee: The Boots Company LimitedInventors: Maurice W. Baker, John C. Kerry, Antonin Kozlik, John R. Marshall, Kenneth J. Nichol, David M. Weighton
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Patent number: 3940484Abstract: Insecticidal composition comprising a compound of the formula ##SPC1##In which X is selected from the group consisting of oxygen and sulphur, R.sup.3 is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R.sup.4 is selected from the group consisting of alkyl of 1 to 10 carbon atoms and cycloalkyl of 3 to 10 carbon atoms, form a morpholino group optionally containing 1 to 4 methyl substituents attached to carbon atoms of the ring, together with a suitable carrier. The insecticidal compositions are of particular vaule against insects, e.g., aphids, and against other pests, e.g., acarids.Type: GrantFiled: November 21, 1973Date of Patent: February 24, 1976Assignee: The Boots Company LimitedInventors: Maurice W. Baker, John C. Kerry, Kenneth J. Nichol, John R. Marshall, David M. Weighton, Antonin Kozlik
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Patent number: 3930475Abstract: The engine has a duct connecting the gases in the exhaust gas crossover passage to the intake manifold, the duct normally being closed by a valve that is opened by manifold vacuum that is modulated as a function of carburetor throttle blade opening and connected to the duct past an air-bleed device that normally is open and closed against a spring force by unmodulated manifold vacuum below a predetermined level so that the gas recirculating valve opening signal force varies directly with manifold vacuum decreases to prevent recirculation during engine idle and cruising and wide-open throttle operations while providing controlled operation in the engine accelerating range between.Type: GrantFiled: August 24, 1973Date of Patent: January 6, 1976Assignee: Ford Motor CompanyInventors: John A. Lewis, John R. Marshall