Patents Assigned to Bernhard Förster Gmbh
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Patent number: 12127908Abstract: A self-ligating bracket for orthodontics includes a resilient clamp, wherein a first clamp leg is inserted in a slit and can be moved therein between a closed and open position to prevent an unintended loss of the clamp. The first clamp leg has at least one oblong recess, into which protrudes a projection that proceeds from the lingually or labially situated surface of the slit. The recess is bordered on its end facing away from the clamp bend by a stop, which hits the projection in the open position of the clamp and limits a further movement of the clamp. The surface situated opposite the projection forms an escape space inside of the slit, into which the first clamp leg escapes with the stop under a resilient deformation when the stop slides over the projection during insertion of the clamp.Type: GrantFiled: December 9, 2020Date of Patent: October 29, 2024Assignee: Bernhard Foerster GmbHInventor: Carsten Wagner
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Publication number: 20240350232Abstract: A self-ligating bracket includes a base, an occlusal wall, a gingival wall and a groove. The groove separates the occlusal and gingival wall and extends continuously in a direction from mesial to distal. A slit extends in a gingival to occlusal direction. A resilient clamp has a first and second clamp leg connected by an occlusally or gingivally arranged clamp bend. The first clamp leg is inserted in the slit and can be moved in the gingival-occlusal direction between a closed and open position of the clamp. The clamp has an access opening for engagement of a bracket opener. The access opening is delimited laterally by two arms running in a V-shape towards each other. A distance measured from mesial to distal between the two arms is at least as large as the arm width of each of the two arms measured from mesial to distal.Type: ApplicationFiled: April 16, 2024Publication date: October 24, 2024Applicant: Bernhard Förster GmbHInventor: Carsten Wagner
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Patent number: 12016746Abstract: An orthodontic expansion screw has two bodies, the mutual distance of which can be changed by a spindle. The spindle has an actuating part with a threaded part engaged in a threaded bore of one of the two bodies. A straight-line guiding means engage both bodies and prevent a relative rotation of the bodies and prevent inadvertent rotation of the spindle. The threaded part of the spindle has one recess. The inner surface of the threaded bore of the body in which the threaded part is inserted has a projection, which is directed against the at least one threaded part and, in a position of the spindle in which it faces the flattened portion or recess, touches the threaded part on the flattened portion or in the recess, whereas in positions of the spindle in which it does not face a flattened portion or recess, presses against the threaded part.Type: GrantFiled: August 6, 2021Date of Patent: June 25, 2024Assignee: Bernhard Foerster GmbHInventor: Michael Regelmann
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Patent number: 11793607Abstract: The orthodontic expansion screw has two bodies, the mutual distance between which can be changed by a spindle means. The spindle has an activating part with a threaded part and is turned into a threaded hole of one of the two bodies. The bodies have a first end, which faces the activating part of the spindle, and a second end, which faces away from the activating part of the spindle. A linear guiding means engage both bodies and guide them while preventing a relative rotation of the bodies and prevent inadvertent twisting of the spindle relative to the bodies. The spindle's threaded part has a recess in which the at least one threaded part is inserted and has an extension externally that contacts the threaded part on a flattened region or in the recess, whereas it elastically presses against the threaded part.Type: GrantFiled: August 7, 2020Date of Patent: October 24, 2023Assignee: Bernhard Foerster GmbHInventor: Michael Regelmann
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Patent number: 11633262Abstract: A self-ligating bracket for orthodontics, includes: a groove for receiving an archwire; a slide which can be displaced between a closed position in which it bridges the groove and an open position in which the groove is open; and a locking element which can hold the slide both in its closed position and in its open position. In the gingival and/or in the occlusal wall, a recess is open towards the slide in which the locking element is inserted which is directed against the slide. The locking element is displaceably guided in the recess and has elastically or elastomerically bendable tines which, when the slide is pushed over the convex end of the locking element, are displaced deeper into the recess, thereby being elastically or elastomerically bent and thereby building up a restoring force.Type: GrantFiled: December 26, 2020Date of Patent: April 25, 2023Assignee: Bernhard Foerster GmbHInventor: Christopher Albert
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Patent number: 11389274Abstract: An orthodontic expansion screw including at least two bodies, the mutual distance between which can be changed by means of a spindle, and with one or two guide pins, which engage both bodies and guide them while preventing a relative rotation of the bodies given a change in their distance relative to each other. In order to prevent or impede an inadvertent twisting of the spindle relative to the bodies, the outer periphery of the activating part has a shell surface, whose configuration differs from a shell surface of a circular cylinder in such a way that there is at least one first position of the spindle in which the activating part contacts the guide pins with a pressure that leads to an elastic deformation of a guide pin.Type: GrantFiled: June 3, 2020Date of Patent: July 19, 2022Assignee: Bernhard Foerster GmbHInventor: Michael Regelmann
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Publication number: 20220192792Abstract: A set of self-ligating brackets for orthodontics includes brackets having a base and a block arranged on the base. An occlusal wall extends from the block and has at least one occlusal ligature wing. A gingival wall extends from the block and has at least one gingival ligature wing. A slot, which separates the occlusal wall and the gingival wall from one another, has the same minimum clear width for the brackets of the set and extends continuously in a direction from mesial to distal. The slot also has a base area on which an archwire lies during orthodontic treatment. A passage extends in the gingival-occlusal direction through the block and is delimited by a lingually located surface and by a labially located surface. Resilient clips with a labial leg and with a lingual leg are interconnected by an occlusally arranged portion.Type: ApplicationFiled: March 10, 2022Publication date: June 23, 2022Applicant: Bernhard Foerster GmbHInventor: Rolf Foerster
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Patent number: 11298212Abstract: A set of self-ligating brackets for orthodontics includes brackets having a base and a block arranged on the base. An occlusal wall extends from the block and has at least one occlusal ligature wing. A gingival wall extends from the block and has at least one gingival ligature wing. A slot, which separates the occlusal wall and the gingival wall from one another, has the same minimum clear width for the brackets of the set and extends continuously in a direction from mesial to distal. The slot also has a base area on which an archwire lies during orthodontic treatment. A passage extends in the gingival-occlusal direction through the block and is delimited by a lingually located surface and by a labially located surface. Resilient clips with a labial leg and with a lingual leg are interconnected by an occlusally arranged portion.Type: GrantFiled: June 11, 2010Date of Patent: April 12, 2022Assignee: BERNHARD FOERSTER GMBHInventor: Rolf Foerster
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Publication number: 20210361390Abstract: An orthodontic expansion screw has two bodies, the mutual distance of which can be changed by a spindle. The spindle has an actuating part with a threaded part engaged in a threaded bore of one of the two bodies. A straight-line guiding means engage both bodies and prevent a relative rotation of the bodies and prevent inadvertent rotation of the spindle. The threaded part of the spindle has one recess. The inner surface of the threaded bore of the body in which the threaded part is inserted has a projection, which is directed against the at least one threaded part and, in a position of the spindle in which it faces the flattened portion or recess, touches the threaded part on the flattened portion or in the recess, whereas in positions of the spindle in which it does not face a flattened portion or recess, presses against the threaded part.Type: ApplicationFiled: August 6, 2021Publication date: November 25, 2021Applicant: Bernhard Foerster GmbHInventor: Michael Regelmann
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Publication number: 20210177550Abstract: A self-ligating bracket for orthodontics includes a resilient clamp, wherein a first clamp leg is inserted in a slit and can be moved therein between a closed and open position to prevent an unintended loss of the clamp. The first clamp leg has at least one oblong recess, into which protrudes a projection that proceeds from the lingually or labially situated surface of the slit. The recess is bordered on its end facing away from the clamp bend by a stop, which hits the projection in the open position of the clamp and limits a further movement of the clamp. The surface situated opposite the projection forms an escape space inside of the slit, into which the first clamp leg escapes with the stop under a resilient deformation when the stop slides over the projection during insertion of the clamp.Type: ApplicationFiled: December 9, 2020Publication date: June 17, 2021Applicant: Bernhard Foerster GmbHInventor: Carsten Wagner
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Publication number: 20210113306Abstract: A self-ligating bracket for orthodontics, includes: a groove for receiving an archwire; a slide which can be displaced between a closed position in which it bridges the groove and an open position in which the groove is open; and means which can hold the slide both in its closed position and in its open position. These means contain, in the gingival and/or in the occlusal wall, a recess which is open towards the slide and in which a locking element is inserted which is directed against the slide. The locking element is displaceably guided in the recess and has elastically or elastomerically bendable tines which, when the slide is pushed over the convex end of the locking element, are displaced deeper into the recess, thereby being elastically or elastomerically bent and thereby building up a restoring force.Type: ApplicationFiled: December 26, 2020Publication date: April 22, 2021Applicant: Bernhard Foerster GmbHInventor: Christopher Albert
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Publication number: 20210045847Abstract: The orthodontic expansion screw has two bodies, the mutual distance between which can be changed by a spindle means. The spindle has an activating part with a threaded part and is turned into a threaded hole of one of the two bodies. The bodies have a first end, which faces the activating part of the spindle, and a second end, which faces away from the activating part of the spindle. A linear guiding means engage both bodies and guide them while preventing a relative rotation of the bodies and prevent inadvertent twisting of the spindle relative to the bodies. The spindle's threaded part has a recess in which the at least one threaded part is inserted and has an extension externally that contacts the threaded part on a flattened region or in the recess, whereas it elastically presses against the threaded part.Type: ApplicationFiled: August 7, 2020Publication date: February 18, 2021Applicant: Bernhard Foerster GmbHInventor: Michael Regelmann
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Publication number: 20200383755Abstract: An orthodontic expansion screw including at least two bodies, the mutual distance between which can be changed by means of a spindle, and with one or two guide pins, which engage both bodies and guide them while preventing a relative rotation of the bodies given a change in their distance relative to each other. In order to prevent or impede an inadvertent twisting of the spindle relative to the bodies, the outer periphery of the activating part has a shell surface, whose configuration differs from a shell surface of a circular cylinder in such a way that there is at least one first position of the spindle in which the activating part contacts the guide pins with a pressure that leads to an elastic deformation of a guide pin.Type: ApplicationFiled: June 3, 2020Publication date: December 10, 2020Applicant: Bernhard Foerster GmbHInventor: Michael Regelmann
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Patent number: 9839495Abstract: Self-ligating bracket for orthodontics has a base, an occlusal wall extending from the base and occlusal ligature wing, a gingival wall extending from the base and gingival ligature wing, a slot, which separates the occlusal wall and the gingival wall from one another and extends continuously in the direction from mesial to distal, and a slide, which is held in a guide provided in the occlusal wall and/or in the gingival wall. The guide can be shifted in the gingival-occlusal direction, between a closed position, in which the slide bridges the slot, and an open position, in which the slot is open in labial direction. A structure holds the slide in its closed position as well as in its open position.Type: GrantFiled: December 16, 2013Date of Patent: December 12, 2017Assignee: Bernhard Foerster GmbHInventor: Rolf Förster
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Publication number: 20150017595Abstract: The invention relates to an orthodontic tool for opening a self-ligating bracket, having a body (10) which carries on its end a tappet (12) for displacing a clamp (5) of the bracket out of its closed position and into its open position, an annular groove (13) being situated between the tappet and the body, in which an upper edge of the bracket engages in displacement of the clamp (5) out of its closed position and into its open position between the tappet (12) and the body (10) for axial positioning of tappet (12) with respect to the bracket to be opened. The invention also relates to a system having such a tool and a self-ligating bracket.Type: ApplicationFiled: July 11, 2014Publication date: January 15, 2015Applicant: Bernhard Förster GmbHInventors: Rolf Förster, Carsten Wagner
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Publication number: 20140178831Abstract: Self-ligating bracket for orthodontics has a base, an occlusal wall extending from the base and occlusal ligature wing, a gingival wall extending from the base and gingival ligature wing, a slot, which separates the occlusal wall and the gingival wall from one another and extends continuously in the direction from mesial to distal, and a slide, which is held in a guide provided in the occlusal wall and/or in the gingival wall. The guide can be shifted in the gingival-occlusal direction, between a closed position, in which the slide bridges the slot, and an open position, in which the slot is open in labial direction. A structure holds the slide in its closed position as well as in its open position.Type: ApplicationFiled: December 16, 2013Publication date: June 26, 2014Applicant: BERNHARD FÖRSTER GMBHInventor: Rolf Förster
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Patent number: 8167613Abstract: The description relates to a self-drilling threaded screw implant, particularly for orthodontics. According to the invention there is in at last one thread groove (15) of the thread (10), delimited by two flanks (13), a cutting edge (16) extending transversely to the two flanks (13) without traversing the two flanks (13).Type: GrantFiled: February 12, 2008Date of Patent: May 1, 2012Assignee: Bernhard Förster GmbHInventor: Rolf Förster
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Publication number: 20110318699Abstract: Self-ligating bracket for orthodontics has a base, an occlusal wall extending from the base and occlusal ligature wing, a gingival wall extending from the base and gingival ligature wing, a slot, which separates the occlusal wall and the gingival wall from one another and extends continuously in the direction from mesial to distal, and a slide, which is held in a guide provided in the occlusal wall and/or in the gingival wall, and in the guide can be shifted in the gingival-occlusal direction, between a closed position, in which the slide bridges the slot, and a open position, in which the slot is open in labial direction, that can hold the slide in its closed position as well as in its open position. Elongated recess, longitudinal direction of which runs parallel to the longitudinal direction of the slot and a strand is arranged horizontally.Type: ApplicationFiled: December 4, 2009Publication date: December 29, 2011Applicant: Bernhard Förster GMBHInventor: Rolf Förster
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Patent number: 7837465Abstract: An orthodontic expansion screw having two bodies whose distance from each other can be changed by means of a spindle that engages both bodies. The spindle includes an actuation part for effecting a torque for readjusting the spindle, and a straight-line guide for engaging both bodies and guiding the bodies along two guide axes that are parallel to each other while preventing a relative rotation of the bodies when their distance from each other is being changed. A friction brake is provided that presses onto the actuation part of the spindle and thus generates a frictional force that renders a rotation of the spindle in both directions of rotation more difficult in order to prevent inadvertent readjustment of the spindle.Type: GrantFiled: December 20, 2007Date of Patent: November 23, 2010Assignee: Bernhard Förster GmbhInventor: Rolf Förster