Patents by Inventor Elof Jonsson
Elof Jonsson 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: 7370583Abstract: A method for wirelessly transmitting data to a control unit, such as a blasting machine, selected from a plurality of control units from an operating device selected from a plurality of operating devices, and a system intended for the method. The control unit is connected to a plurality of detonators, which are controlled by the control unit via an electrical wire or a fuse. The operating device is associated with the appropriate control unit in a step in which address data and/or encryption data is exchanged between the units. Only one operating device can be associated with a pre-determined control unit at any given moment. The data transmitted in accordance with the method preferably comprises at least a fire command, which instructs the control unit to fire the detonators.Type: GrantFiled: March 6, 2003Date of Patent: May 13, 2008Assignee: Dyno Nobel Sweden ABInventors: Anne-Marie Bokvist, legal representative, Elof Jönsson, Jan Westberg, Sune Hallin
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Publication number: 20070095237Abstract: An electronic detonator system includes a control unit, a plurality of electronic detonators and a bus which connects the detonators to the control unit. Each electronic detonator includes a number of flags which may assume either of two possible values, each flag indicating a substate of the respective detonators. The flags are readable from the control unit by means of digital data packets and the control unit is adapted, by means of these flags, to check the state of the electronic detonator and control the operation of the electronic detonator. When reading the flags, the electronic detonators give responses in the form of analog response pulses on the bus. The detonator system also includes a portable message receiver which on the basis of the flags obtains messages regarding the connecting status of a detonator.Type: ApplicationFiled: December 11, 2006Publication date: May 3, 2007Applicant: DYNO NOBEL SWEDEN ABInventors: Sune Hallin, Anne-Marie Bokvist, Jan Westberg, Elof Jonsson
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Patent number: 7146912Abstract: An electronic detonator system includes a control unit, a plurality of electronic detonators and a bus which connects the detonators to the control unit. Each electronic detonator includes a number of flags which may assume either of two possible values, each flag indicating a substrate of the respective detonators. The flags are readable from the control unit by means of digital data packets and the control unit is adapted, by means of these flags, to check the state of the electronic detonator and control the operation of the electronic detonator. When reading the flags, the electronic detonators give responses in the form of analog response pulses on the bus. The detonator system also includes a portable message receiver which on the basis of the flags obtains messages regarding the connecting status of a detonator.Type: GrantFiled: January 4, 2005Date of Patent: December 12, 2006Assignee: Dyno Nobel Sweden ABInventors: Anne-Marie Bokvist, legal representative, Jan Westberg, Elof Jönsson, Sune Hallin, deceased
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Publication number: 20050243499Abstract: A method for wirelessly transmitting data to a control unit, such as a blasting machine, selected from a plurality of control units from an operating device selected from a plurality of operating devices, and a system intended for the method. The control unit is connected to a plurality of detonators, which are controlled by the control unit via an electrical wire or a fuse. The operating device is associated with the appropriate control unit in a step in which address data and/or encryption data is exchanged between the units. Only one operating device can be associated with a pre-determined control unit at any given moment. The data transmitted in accordance with the method preferably comprises at least a fire command, which instructs the control unit to fire the detonators.Type: ApplicationFiled: March 6, 2003Publication date: November 3, 2005Inventors: Sune Hallin, Elof Jonsson, Jan Westberg
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Publication number: 20050183608Abstract: An electronic detonator system includes a control unit, a plurality of electronic detonators and a bus which connects the detonators to the control unit. Each electronic detonator includes a number of flags which may assume either of two possible values, each flag indicating a substrate of the respective detonators. The flags are readable from the control unit by means of digital data packets and the control unit is adapted, by means of these flags, to check the state of the electronic detonator and control the operation of the electronic detonator. When reading the flags, the electronic detonators give responses in the form of analog response pulses on the bus. The detonator system also includes a portable message receiver which on the basis of the flags obtains messages regarding the connecting status of a detonator.Type: ApplicationFiled: January 4, 2005Publication date: August 25, 2005Applicant: DYNO NOBEL SWEDEN ABInventors: Sune Hallin, Anne-Marie Bokvist, Jan Westberg, Elof Jonsson
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Patent number: 6837163Abstract: An electronic detonator system includes a control unit, a plurality of electronic detonators and a bus which connects the detonators to the control unit. Each electronic detonator includes a number of flags which may assume either of two possible values, each flag indicating a substate of the respective detonators. The flags are readable from the control unit by means of digital data packets and the control unit is adapted, by means of these flags, to check the state of the electronic detonator and control the operation of the electronic detonator. When reading the flags, the electronic detonators give responses in the form of analog response pulses on the bus. The detonator system also includes a portable message receiver which on the basis of the flags obtains messages regarding the connecting status of a detonator.Type: GrantFiled: December 6, 2000Date of Patent: January 4, 2005Assignee: Dnyo Nobel Sweden ABInventors: Anne-Marie Bokvist, Jan Westberg, Elof Jönsson, Sune Hallin
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Publication number: 20030136289Abstract: A method for firing electronic detonators in an electronic detonator system, said detonators being connected to a control unit via a bus. A firing command or a test firing command is sent from the control unit to the detonators, which start countdown of a delay time stored in each detonator at a synchronising point which is delayed relative to said command. On completion of the countdown, the detonators are caused, in the case of a firing command, to detonate, and in the case of a test firing command, to give a response at the point where they should have detonated if a firing command had been involved. The delayed synchronisation allows checking and control of the detonators after said command has been received. The invention also comprises an analogous method in a system with a plurality of slave control units, to which a plurality of detonators are connected, and a main control unit, the system being controlled at the command of the main control unit.Type: ApplicationFiled: October 24, 2002Publication date: July 24, 2003Inventors: Sune Hallin, Anne-Marie Bokvist, Jan Westberg, Elof Jonsson
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Publication number: 20030101889Abstract: An electronic detonator system which comprises a control unit, a plurality of electronic detonators and a bus which connects said detonators to the control unit. Each electronic detonator comprises a number of flags which may assume either of two possible values, each flag indicating a substate of the respective detonators. The flags are readable from the control unit by means of digital data packets and the control unit is adapted, by means of these flags, to check the state of the electronic detonator and control the operation of the electronic detonator. When reading said flags, the electronic detonators give responses in the form of analog response pulses on the bus. The detonator system also comprises a portable message receiver which on the basis of said flags obtains messages regarding the connecting status of a detonator.Type: ApplicationFiled: October 24, 2002Publication date: June 5, 2003Inventors: Sune Hallin, Anne-Marie Bokvist, Jan Westberg, Elof Jonsson
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Patent number: 4869170Abstract: A firing unit for initiation of detonators, which contain at least one base charge in a detonator casing, which firing unit comprisesan electrically actuable fuse head,a current source connected to the electrically actuable fuse head via switching means, and an electronics unit comprisinga signal decoder designed so as to distinguish a start signal supplied to the detonator via an external signal conductor,a delay circuit designed in such a way that, when the start signal is received, it supplies an ignition signal after a predetermined time andthe switching means, which are designed in such a way that, when the ignition signal is received, they connect the current source to the fuse head in order to electrically actuate the latter,the electronics unit comprising at least one chip made from a semiconductor material and having a microcircuit. According to the invention, at least the chip and an additional component are electrically and mechanically connected on a substrate having a circuit pattern.Type: GrantFiled: February 12, 1988Date of Patent: September 26, 1989Assignee: Nitro Nobel ABInventors: Sven Dahmberg, Elof Jonsson, Per Lilius, Ingemar Olsson, Hjalmar Hesselbom, Rolf Wennergren