Patents Assigned to VOSSTECH
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Patent number: 11427494Abstract: A tempering furnace for tempering a glass object may include a housing, a heating device for heating the glass object, and a cooling device for cooling the glass object. Additionally, the tempering furnace may further include a turning device provided for turning the glass object inside the housing. The turning device is configured to counteract an effect of gravitational forces on the glass object when the glass object is heated to its softening phase.Type: GrantFiled: February 10, 2017Date of Patent: August 30, 2022Assignee: Vosstech ASInventor: Stig Ove Bjørgum
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Publication number: 20210188689Abstract: A tempering furnace for tempering a glass object may include a housing, a heating device for heating the glass object, and a cooling device for cooling the glass object. Additionally, the tempering furnace may further include a turning device provided for turning the glass object inside the housing. The turning device is configured to counteract an effect of gravitational forces on the glass object when the glass object is heated to its softening phase.Type: ApplicationFiled: February 10, 2017Publication date: June 24, 2021Applicants: Vosstech AS, Vosstech ASInventor: Stig Ove Bjørgum
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Patent number: 10544654Abstract: A well tool device may include a housing having an inner surface defining a through bore. Additionally, the well tool device may include a frangible disc including an upper chamfered supporting surface and a lower chamfered supporting surface and is supported by a seat in relation to the housing. Further, a force transmitting device is provided between the frangible disc and the seat. The force transmitting device may include an upper contact ring provided between the upper chamfered supporting surface of the frangible disc and the seat and a lower contact ring provided between the lower chamfered supporting surface of the frangible disc and the seat.Type: GrantFiled: February 10, 2017Date of Patent: January 28, 2020Assignee: Vosstech ASInventors: Stig Ove Bjørgum, Espen Hiorth
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Patent number: 10472925Abstract: A well tool device includes a housing with a through bore having a first end and a second end. A frangible obstruction device is provided inside the longitudinal bore, where fluid flow between the first end and the second end is prevented due to the frangible obstruction device. The frangible obstruction device includes a through opening. The well tool device further includes an actuation device extending fluid-tight at least into the through opening. The actuation device includes an actuation tool connection interface and a disintegration device. The disintegration device is configured to be at least partially moved into the frangible obstruction device and thereby provide disintegration of the frangible obstruction device, hence allowing fluid flow between the first end and the second end of the through bore.Type: GrantFiled: November 10, 2015Date of Patent: November 12, 2019Assignee: Vosstech ASInventors: Espen Hiorth, Stig Ove Bjørgum
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Publication number: 20190032448Abstract: A well tool device may include a housing having an inner surface defining a through bore. Additionally, the well tool device may include a frangible disc including an upper chamfered supporting surface and a lower chamfered supporting surface and is supported by a seat in relation to the housing. Further, a force transmitting device is provided between the frangible disc and the seat. The force transmitting device may include an upper contact ring provided between the upper chamfered supporting surface of the frangible disc and the seat and a lower contact ring provided between the lower chamfered supporting surface of the frangible disc and the seat.Type: ApplicationFiled: February 10, 2017Publication date: January 31, 2019Applicant: Vosstech ASInventors: Stig Ove Bjørgum, Espen Hiorth
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Publication number: 20170321518Abstract: A well tool device includes a housing with a through bore having a first end and a second end. A frangible obstruction device is provided inside the longitudinal bore, where fluid flow between the first end and the second end is prevented due to the frangible obstruction device. The frangible obstruction device includes a through opening. The well tool device further includes an actuation device extending fluid-tight at least into the through opening. The actuation device includes an actuation tool connection interface and a disintegration device. The disintegration device is configured to be at least partially moved into the frangible obstruction device and thereby provide disintegration of the frangible obstruction device, hence allowing fluid flow between the first end and the second end of the through bore.Type: ApplicationFiled: November 10, 2015Publication date: November 9, 2017Applicant: Vosstech ASInventors: Espen Hiorth, Stig Ove Bjørgum
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Patent number: 9732579Abstract: A disintegrable plug apparatus for use in connection with petroleum wells, especially during pressure testing of such petroleum wells. The plug apparatus has an outer housing surrounding at least one sealing device and a plurality of supporting bodies, where at least one of the supporting bodies is in engagement with a locking device for locking to a locking sleeve. After application of a predetermined pressure on the plug apparatus, the at least one supporting body and the at least one sealing device are permitted an axial movement such that the at least one sealing device is brought into contact with loading devices for disintegration of the at least one sealing device.Type: GrantFiled: March 6, 2014Date of Patent: August 15, 2017Assignee: Vosstech AGInventors: Espen Hiorth, Gudleik Klette, Stig Ove Bjorgum
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Patent number: 9587452Abstract: Device for controlling and/or operating underwater equipment employed in connection with recovery of hydrocarbons. The device has a hollow sleeve with a number of recesses and a closed volume, in which recesses a movement mechanism, a stopper element and a block release element are mounted. Under cyclic loading, the movement mechanism will be moved relative to the stopper element and the block release element into a position where the block release element via a release pin will open up a connection between the closed volume and a number of relief recesses. At least one push rod is activated for operating in the device's longitudinal direction.Type: GrantFiled: April 27, 2012Date of Patent: March 7, 2017Assignee: Vosstech ASInventor: Stig Ove Bjorgum
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Publication number: 20140102718Abstract: Device (A) for controlling and/or operating a tool, a device or underwater equipment employed in connection with exploration and recovery of hydrocarbons offshore or onshore. The device (A) comprises a hollow sleeve (S) with a number of recesses (U, Ut1, Ut2) and a closed volume (V), in which recesses (U, Ut1, Ut2) a movement mechanism (M), a stopper element (21) and a block release element (8) are mounted, where, when influenced by cyclic loading, the movement mechanism (M) will be moved relative to the stopper element (21) and the block release element (8) into a position where the block release element (8) via a release pin (7) will open up a connection between the closed volume (V) and a number of relief recesses (AU), whereby at least one push rod (26) is activated for operating in the device's (A) longitudinal direction, where the implementation of the release pin (7) is employed for controlling or operating the tool or the underwater equipment.Type: ApplicationFiled: April 27, 2012Publication date: April 17, 2014Applicant: VOSSTECH ASInventor: Stig Ove Bjorgum
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Patent number: 8307905Abstract: The present invention relates to an activating mechanism (200) for guiding and controlling a downhole tool (100) and/or subsea equipment employed in connection with recovery of hydrocarbons. The activating mechanism (200) comprises an annular sleeve (21) provided with non-through-going recesses (22, 24) in the material of the annular sleeve (21), where separate replaceable elements are provided in the recesses (22, 24) to act as a pump (P), piston (S1), reservoirs (R1, R2), movable slide (S2) and pistons (25a, 25b), where these elements create a closed fluid circuit which on being subjected to a number of cyclical loads will open up a connection between the pistons (25a, 25b). A method for controlling the activating mechanism (200) is also presented.Type: GrantFiled: September 15, 2008Date of Patent: November 13, 2012Assignee: Vosstech ASInventor: Stig Ove Bjorgum
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Publication number: 20100236793Abstract: The present invention relates to an activating mechanism (200) for guiding and controlling a downhole tool (100) and/or subsea equipment employed in connection with recovery of hydrocarbons. The activating mechanism (200) comprises an annular sleeve (21) provided with non-through-going recesses (22, 24) in the material of the annular sleeve (21), where separate replaceable elements are provided in the recesses (22, 24) to act as a pump (P), piston (S1), reservoirs (R1, R2), movable slide (S2) and pistons (25a, 25b), where these elements create a closed fluid circuit which on being subjected to a number of cyclical loads will open up a connection between the pistons (25a, 25b). A method for controlling the activating mechanism (200) is also presented.Type: ApplicationFiled: September 15, 2008Publication date: September 23, 2010Applicant: VOSSTECHInventor: Stig Ove Bjorgum