Patents Assigned to VOSSTECH
  • Patent number: 11427494
    Abstract: 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: Grant
    Filed: February 10, 2017
    Date of Patent: August 30, 2022
    Assignee: Vosstech AS
    Inventor: Stig Ove Bjørgum
  • Publication number: 20210188689
    Abstract: 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: Application
    Filed: February 10, 2017
    Publication date: June 24, 2021
    Applicants: Vosstech AS, Vosstech AS
    Inventor: Stig Ove Bjørgum
  • Patent number: 10544654
    Abstract: 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: Grant
    Filed: February 10, 2017
    Date of Patent: January 28, 2020
    Assignee: Vosstech AS
    Inventors: Stig Ove Bjørgum, Espen Hiorth
  • Patent number: 10472925
    Abstract: 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: Grant
    Filed: November 10, 2015
    Date of Patent: November 12, 2019
    Assignee: Vosstech AS
    Inventors: Espen Hiorth, Stig Ove Bjørgum
  • Publication number: 20190032448
    Abstract: 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: Application
    Filed: February 10, 2017
    Publication date: January 31, 2019
    Applicant: Vosstech AS
    Inventors: Stig Ove Bjørgum, Espen Hiorth
  • Publication number: 20170321518
    Abstract: 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: Application
    Filed: November 10, 2015
    Publication date: November 9, 2017
    Applicant: Vosstech AS
    Inventors: Espen Hiorth, Stig Ove Bjørgum
  • Patent number: 9732579
    Abstract: 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: Grant
    Filed: March 6, 2014
    Date of Patent: August 15, 2017
    Assignee: Vosstech AG
    Inventors: Espen Hiorth, Gudleik Klette, Stig Ove Bjorgum
  • Patent number: 9587452
    Abstract: 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: Grant
    Filed: April 27, 2012
    Date of Patent: March 7, 2017
    Assignee: Vosstech AS
    Inventor: Stig Ove Bjorgum
  • Publication number: 20140102718
    Abstract: 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: Application
    Filed: April 27, 2012
    Publication date: April 17, 2014
    Applicant: VOSSTECH AS
    Inventor: Stig Ove Bjorgum
  • Patent number: 8307905
    Abstract: 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: Grant
    Filed: September 15, 2008
    Date of Patent: November 13, 2012
    Assignee: Vosstech AS
    Inventor: Stig Ove Bjorgum
  • Publication number: 20100236793
    Abstract: 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: Application
    Filed: September 15, 2008
    Publication date: September 23, 2010
    Applicant: VOSSTECH
    Inventor: Stig Ove Bjorgum