Patents by Inventor Cristinel Cobzaru

Cristinel Cobzaru 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).

  • Publication number: 20230069811
    Abstract: A tool for installing a blind fastener including a bolt and a nut includes a base, collet, socket assembly, drive body, and mode clutch. The collet is coupled to the base and disposed about an axis. The collet can selectively engage a portion of the nut. The socket assembly includes a socket housing and a plurality of rollers. The socket housing is rotatable relative to the collet and defines a bore disposed about the axis. The rollers are spaced circumferentially about the axis. A surface of each roller can engage a cylindrical portion of the bolt within the bore to rotate the bolt about the axis. The drive body is coupled to the socket housing and configured to rotate the socket housing about the axis relative to the base. The mode clutch is configured to selectively couple the socket housing with the collet for common rotation about the axis.
    Type: Application
    Filed: December 15, 2021
    Publication date: March 2, 2023
    Applicant: SPS TECHNOLOGIES, LLC
    Inventors: Cristinel COBZARU, Brian HOFFARTH
  • Publication number: 20220176438
    Abstract: A blind fastener for connecting workpieces includes a bolt and nut. The bolt includes a shaft, bolt head, and lug. The bolt head is between the shaft and lug and extends radially outward from the shaft. The shaft defines external threads opposite the bolt head. The lug includes a first tool engagement portion and a first frangible portion that frangibly couples the lug to the bolt head. The nut includes a sleeve, nut head, and handling member. The shaft is threadably received in the sleeve. The nut head extends radially outward from the sleeve and defines a recess that receives the bolt head. The handling member surrounds at least a portion of the lug. The handling member includes a second frangible portion and a second tool engagement portion. The second frangible portion frangibly couples the second tool engagement portion to the nut head.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Applicant: SPS TECHNOLOGIES, LLC
    Inventors: Cristinel COBZARU, Brian HOFFARTH, Claude COUILLANDEAU
  • Publication number: 20220105557
    Abstract: A tool for installing a blind fastener including a bolt and a nut includes a base, collet, socket assembly, drive body, and mode clutch. The collet is coupled to the base and disposed about an axis. The collet can selectively engage a portion of the nut. The socket assembly includes a socket housing and a plurality of rollers. The socket housing is rotatable relative to the collet and defines a bore disposed about the axis. The rollers are spaced circumferentially about the axis. A surface of each roller can engage a cylindrical portion of the bolt within the bore to rotate the bolt about the axis. The drive body is coupled to the socket housing and configured to rotate the socket housing about the axis relative to the base. The mode clutch is configured to selectively couple the socket housing with the collet for common rotation about the axis.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Applicant: SPS TECHNOLOGIES, LLC
    Inventors: Cristinel COBZARU, Brian HOFFARTH
  • Patent number: 10974310
    Abstract: A tool for installing a blind fastener including a core bolt and a core nut is provided. The tool includes a driving member, a collet driven by the driving member for engaging the core bolt, and an external sleeve for holding the core nut and preventing the core nut from rotating during installation of the blind fastener. The external sleeve is movable between a first position in which the external sleeve is driven by the collet to rotate with the collet and a second position in which the external sleeve is stationary despite rotating action of the collet.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: April 13, 2021
    Assignee: SPS Technologies, LLC
    Inventor: Cristinel Cobzaru
  • Patent number: 10654095
    Abstract: An adjustment system for a fastener pulling head includes a swivel adapter, an adjustment member, and a retention member. The fastener pulling head includes a frame, a jaw, and a drawbolt body, the adjustment system. The swivel adapter is configured to engage with a proximal end portion of the drawbolt body. The swivel adapter defines an internal bore. The adjustment member is disposed within the internal bore and configured to engage the drawbolt body. The retention member is configured to engage and secure the swivel adapter at a location within the drawbolt body. When the retention member is disengaged from the swivel adapter, the pulling head can be rotated to cause the frame to move relative to the drawbolt body to adjust a gripping force of the jaw.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 19, 2020
    Assignee: SPS TECHNOLOGIES, LLC
    Inventor: Cristinel Cobzaru
  • Publication number: 20190160520
    Abstract: A tool for installing a blind fastener including a core bolt and a core nut is provided. The tool includes a driving member, a collet driven by the driving member for engaging the core bolt, and an external sleeve for holding the core nut and preventing the core nut from rotating during installation of the blind fastener. The external sleeve is movable between a first position in which the external sleeve is driven by the collet to rotate with the collet and a second position in which the external sleeve is stationary despite rotating action of the collet.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 30, 2019
    Applicant: SPS Technologies, LLC
    Inventor: Cristinel COBZARU
  • Publication number: 20190030589
    Abstract: An adjustment system for a fastener pulling head includes a swivel adapter, an adjustment member, and a retention member. The fastener pulling head includes a frame, a jaw, and a drawbolt body, the adjustment system. The swivel adapter is configured to engage with a proximal end portion of the drawbolt body. The swivel adapter defines an internal bore. The adjustment member is disposed within the internal bore and configured to engage the drawbolt body. The retention member is configured to engage and secure the swivel adapter at a location within the drawbolt body. When the retention member is disengaged from the swivel adapter, the pulling head can be rotated to cause the frame to move relative to the drawbolt body to adjust a gripping force of the jaw.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Applicant: SPS TECHNOLOGIES, LLC
    Inventor: Cristinel COBZARU
  • Patent number: 10112233
    Abstract: An adjustment system for a fastener pulling head is provided that includes a swivel adapter configured for engagement with a proximal end portion of a drawbolt body of the pulling head, the swivel adapter defining an internal bore. A cap screw is disposed within the internal bore of the swivel adapter and configured to threadably engage the drawbolt body, and a set screw is configured to engage and secure the swivel adapter within the drawbolt body. The set screw is tightened in order to install or remove the fastener pulling head from a power tool. Once installed on the power tool, the set screw is disengaged from the swivel adapter, the pulling head can be rotated, which causes the frame to move relative to the drawbolt body within the pulling head to adjust a jaw gripping force.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: October 30, 2018
    Assignee: SPS Technologies, LLC
    Inventor: Cristinel Cobzaru
  • Publication number: 20160318094
    Abstract: An adjustment system for a fastener pulling head is provided that includes a swivel adapter configured for engagement with a proximal end portion of a drawbolt body of the pulling head, the swivel adapter defining an internal bore. A cap screw is disposed within the internal bore of the swivel adapter and configured to threadably engage the drawbolt body, and a set screw is configured to engage and secure the swivel adapter within the drawbolt body. The set screw is tightened in order to install or remove the fastener pulling head from a power tool. Once installed on the power tool, the set screw is disengaged from the swivel adapter, the pulling head can be rotated, which causes the frame to move relative to the drawbolt body within the pulling head to adjust a jaw gripping force.
    Type: Application
    Filed: April 30, 2015
    Publication date: November 3, 2016
    Inventor: Cristinel Cobzaru
  • Publication number: 20140101908
    Abstract: The invention provides a pulling head, a jaw gripping assembly, and an adjustment assembly. The pulling head has a frame having first and second ends with the first end being configured to receive a stem of a fastener therein. The jaw gripping assembly is generally positioned within the frame. The adjustment assembly is operatively associated with at least one of the frame and the jaw gripping assembly. Manipulation of the adjustment assembly in a first manner moves the jaw gripping assembly closer to the first end of the frame in order to minimize an amount of jaw grip force generated by the jaw gripping assembly, while manipulation of the adjustment assembly in a second manner moves the jaw gripping assembly distal to the first end of the frame in order to maximize an amount of jaw grip force generated by the jaw gripping assembly.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 17, 2014
    Applicant: SPS Technologies, LLC
    Inventors: Cristinel Cobzaru, John Wilker
  • Patent number: 8615860
    Abstract: The invention provides a system configured to adjust a jaw gripping force of a pulling head. A locking nut is threadedly attached to the pulling head and defines an aperture which extends therethrough. A frame adaptor is at least partially positioned within the aperture of the locking nut. The frame adaptor further receives a portion of the pulling head and a piston of a power tool within an aperture thereof, with the portion and the piston engaging one another within the aperture of the frame adaptor. The portion of the pulling head is operatively associated with a jaw of the pulling head. An adjustment nut is threadedly attached to the frame adaptor. Rotation of the adjustment nut, with the locking nut in an unlocked position, causes the jaw gripping force of the pulling head to either be strengthened or weakened, depending on the direction of rotation.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: December 31, 2013
    Assignee: SPS Technologies, LLC
    Inventors: Cristinel Cobzaru, John Wilker
  • Publication number: 20130152354
    Abstract: The invention provides a system configured to adjust a jaw gripping force of a pulling head. A locking nut is threadedly attached to the pulling head and defines an aperture which extends therethrough. A frame adaptor is at least partially positioned within the aperture of the locking nut. The frame adaptor further receives a portion of the pulling head and a piston of a power tool within an aperture thereof, with the portion and the piston engaging one another within the aperture of the frame adaptor. The portion of the pulling head is operatively associated with a jaw of the pulling head. An adjustment nut is threadedly attached to the frame adaptor. Rotation of the adjustment nut, with the locking nut in an unlocked position, causes the jaw gripping force of the pulling head to either be strengthened or weakened, depending on the direction of rotation.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 20, 2013
    Applicant: SPS TECHNOLOGIES, LLC
    Inventors: Cristinel Cobzaru, John Wilker
  • Publication number: 20080060192
    Abstract: A nosepiece for use with a pulling head and a riveter for installing blind bolts, primarily the “Unimatic” or “U” type. The nosepiece is preferably made out of two different components (a hard and tough one acting as the interface to the fastener, and a soft, ductile one acting as a shock absorber) and has an active area which is annular and effectively matched to the dimensions of the locking collar of the blind bolt. No tapered surface interferes with the sleeve during installation of the blind bolt. Instead, the active area includes a protrusion which intersects a support surface generally at a ninety degree angle. Providing a minimum or no transition fillet radius from the active area to the support area allows for a minimum length of the active area, providing maximum reinforcement to the active area. It also concentrates the operating stresses in a known area, dispersing them from the critical, working surface of the active area, providing an expected failure mode.
    Type: Application
    Filed: November 19, 2007
    Publication date: March 13, 2008
    Applicant: SPS TECHNOLOGIES, LLC
    Inventor: Cristinel Cobzaru
  • Publication number: 20050081595
    Abstract: An improved machine for performing a swaging operation includes a mandrel and an expandable collet that are mounted to an actuator such as a conventional pneumatic gun. The mandrel includes a plurality of ramped planar engagement surfaces that are slidably engageable with a plurality of planar reaction surfaces on deflectable segments of the collet. The planar nature of the engagement surfaces and the reaction surfaces avoids unwanted deflection of the segments that would otherwise turn the segments into cutting tools, such as would occur if the surfaces were of certain other shapes. The mandrel is rotatably mounted to the pneumatic gun whereby the engagement surfaces are self-aligning with the reaction surfaces during an initial stage of a swaging operation.
    Type: Application
    Filed: October 21, 2003
    Publication date: April 21, 2005
    Inventors: Cristinel Cobzaru, Robert Bryant
  • Patent number: D909856
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: February 9, 2021
    Assignee: SPS TECHNOLOGIES, LLC
    Inventor: Cristinel Cobzaru
  • Patent number: D909857
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: February 9, 2021
    Assignee: SPS TECHNOLOGIES, LLC
    Inventor: Cristinel Cobzaru
  • Patent number: D920774
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: June 1, 2021
    Assignee: SPS TECHNOLOGIES, LLC
    Inventor: Cristinel Cobzaru
  • Patent number: D935877
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: November 16, 2021
    Assignee: SPS TECHNOLOGIES, LLC
    Inventor: Cristinel Cobzaru