Patents by Inventor Howard A. Bampfield
Howard A. Bampfield 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: 9091519Abstract: Disclosed herein are significant improvements in security and safety of blasting apparatuses intended for use in mining operations. These include the development of an apparatus and method for blasting that involves activation or deactivation of the blasting apparatus in accordance with pre-determined parameters. For example, these parameters may include one or more of: a location of the blast site, a time for the blasting event, a number of previous blasts, a number of previous blasts within a given time period, and identification of detonator identification codes. The activation or deactivation may involve cross-communication between components of the blasting apparatus and/or associated detonators. Such cross-communication may involve electronic or wireless communication means, including for example the use of cell phone technology, or the internet.Type: GrantFiled: June 23, 2009Date of Patent: July 28, 2015Assignee: ORICA EXPLOSIVES TECHNOLOGY PTY LTDInventors: Charles Michael Lownds, Ronald F. Stewart, Howard A. Bampfield
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Patent number: 9091518Abstract: Disclosed herein are significant improvements in security and safety of blasting apparatuses intended for use in mining operations. These include the development of an apparatus and method for blasting that involves activation or deactivation of the blasting apparatus in accordance with pre-determined parameters. For example, these parameters may include one or more of: a location of the blast site, a time for the blasting event, a number of previous blasts, a number of previous blasts within a given time period, and identification of detonator identification codes. The activation or deactivation may involve cross-communication between components of the blasting apparatus and/or associated detonators. Such cross-communication may involve electronic or wireless communication means, including for example the use of cell phone technology, or the internet.Type: GrantFiled: February 16, 2006Date of Patent: July 28, 2015Assignee: ORICA EXPLOSIVES TECHNOLOGY PTY LTDInventors: Charles Michael Lownds, Ronald F. Stewart, Howard A. Bampfield
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Patent number: 7810430Abstract: A wireless or partially wireless detonator assembly (10) and corresponding blasting apparatus, that may be “powered Up” by a remote source of power (13) that is entirely distinct from the energy used for general command signal communications (16). In one embodiment, the detonator assembly (10) may include an active power source (25) with sufficient power for communications, but insufficient power to cause intentional or inadvertent actuation of the detonator (10).Type: GrantFiled: November 2, 2005Date of Patent: October 12, 2010Assignee: Orica Explosives Technology Pty LtdInventors: Sek Kwan Chan, Ronald F. Stewart, Howard A. Bampfield
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Publication number: 20090314176Abstract: Disclosed herein are significant improvements in security and safety of blasting apparatuses intended for use in mining operations. These include the development of an apparatus and method for blasting that involves activation or deactivation of the blasting apparatus in accordance with pre-determined parameters. For example, these parameters may include one or more of: a location of the blast site, a time for the blasting event, a number of previous blasts, a number of previous blasts within a given time period, and identification of detonator identification codes. The activation or deactivation may involve cross-communication between components of the blasting apparatus and/or associated detonators. Such cross-communication may involve electronic or wireless communication means, including for example the use of cell phone technology, or the internet.Type: ApplicationFiled: June 23, 2009Publication date: December 24, 2009Applicant: ORICA EXPLOSIVES TECHNOLOGY PTY LTDInventors: CHARLES MICHAEL LOWNDS, RONALD F. STEWART, HOWARD A. BAMPFIELD
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Publication number: 20080307993Abstract: A wireless or partially wireless detonator assembly (10) and corresponding blasting apparatus, that may be “powered Up” by a remote source of power (13) that is entirely distinct from the energy used for general command signal communications (16). In one embodiment, the detonator assembly (10) may include an active power source (25) with sufficient power for communications, but insufficient power to cause intentional or inadvertent actuation of the detonator (10).Type: ApplicationFiled: November 2, 2005Publication date: December 18, 2008Applicant: Orica Explosives Technology Pty LtdInventors: Sek Kwan Chan, Ronald F. Stewart, Howard A. Bampfield
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Publication number: 20060272536Abstract: Disclosed herein are significant improvements in security and safety of blasting apparatuses intended for use in mining operations. These include the development of an apparatus and method for blasting that involves activation or deactivation of the blasting apparatus in accordance with pre-determined parameters. For example, these parameters may include one or more of: a location of the blast site, a time for the blasting event, a number of previous blasts, a number of previous blasts within a given time period, and identification of detonator identification codes. The activation or deactivation may involve cross-communication between components of the blasting apparatus and/or associated detonators. Such cross-communication may involve electronic or wireless communication means, including for example the use of cell phone technology, or the internet.Type: ApplicationFiled: February 16, 2006Publication date: December 7, 2006Inventors: Charles Lownds, Ronald Stewart, Howard Bampfield
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Patent number: 4689096Abstract: A packaged booster charge is provided which is sensitive to initiation by blasting cap yet which contains no self-explosive ingredient. The composition of the booster comprises a low melting point nitrate salt or salt mixture having dissolved or finely dispersed therein an acetylenic substance and void containing material. The booster is safe and economic to manufacture and sufficiently powerful to initiate insensitive blasting agents.Type: GrantFiled: March 9, 1987Date of Patent: August 25, 1987Assignee: C-I-L Inc.Inventors: Fortunato Villamagna, Howard A. Bampfield
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Patent number: 4473418Abstract: An emulsion explosive composition comprising an oxygen-supplying salt component as a discontinuous phase, an organic medium forming a continuous phase and an emulsifying agent which comprises at least one conventional emulsifier and at least one emulsification enhancer. The compositions are easily emulsifiable.Type: GrantFiled: October 26, 1983Date of Patent: September 25, 1984Assignees: AECI Limited, C-I-L Inc.Inventors: Howard A. Bampfield, Fortunato Villamagna, Jeremy G. B. Smith
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Patent number: 4470855Abstract: A water-in-wax emulsion explosive composition is provided wherein the continuous carbonaceous fuel phase comprises paraffin wax together with a minor amount of a rheology modifier and stabilizer combination comprising an ethylene-containing polymer and a low molecular weight hydrocarbon liquid. The resulting explosive composition exhibits properties of viscosity and stability comparable to similar compositions containing highly refined microcrystalline wax fuels.Type: GrantFiled: February 27, 1984Date of Patent: September 11, 1984Assignee: C-I-L Inc.Inventor: Howard A. Bampfield
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Patent number: 4420349Abstract: A two-component emulsion explosive composition is provided consisting of a continuous oil/fuel phase and a discontinuous aqueous oxidizer salt phase and, as an emulsifier, a dimer acid glyceride wherein the dimer acid has a carbon atom chain length of C18-C60. The composition demonstrates superior properties of long period storage stability and sensitivity.Type: GrantFiled: January 10, 1983Date of Patent: December 13, 1983Assignee: C-I-L Inc.Inventor: Howard A. Bampfield
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Patent number: 4404050Abstract: A water-in-oil emulsion explosive composition is provided wherein the continuous carbonaceous oil or fuel phase comprises an unrefined or partly refined petroleum product, for example, slackwax. The resulting explosive composition exhibits properties of strength, detonation velocity and stability comparable and in some cases superior to similar compositions containing refined petroleum fuels.Type: GrantFiled: September 29, 1982Date of Patent: September 13, 1983Assignee: C-I-L Inc.Inventors: William J. Yorke, Rejean Binet, Ming C. Lee, Howard A. Bampfield