Patents by Inventor Siegbert Tolk

Siegbert Tolk 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).

  • Patent number: 12396509
    Abstract: A safety helmet (100) includes an arched helmet shell (7), a front holding element (2) attached to the helmet shell (7) and a curved front bearing element (5). The front bearing element lies flat against the forehead of a user of the safety helmet (100). A rigid intermediate piece (1) bridges a distance between the front holding element (2) and the front bearing element (5). This intermediate piece (1) is mechanically connected to the front holding element (2) and to the front bearing element (5), wherein at least one connection is detachable. The present invention pertains, furthermore, to two arrangements with such a safety helmet and with two alternative intermediate pieces or with two alternative front bearing elements with a respective intermediate piece.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: August 26, 2025
    Assignee: DRÄGER SAFETY AG & CO. KGAA
    Inventors: Siegbert Tolk, Jasser Rahmatyan
  • Patent number: 11166527
    Abstract: A detachable belt connector system (100), for the detachable connection of belt ends (770, 775), includes a first connector element (110) with a first connection area (112) and a first belt fastening area (116) and a second connector element (120) with a second connection area (122) and a second belt fastening area (126). The first and second connection areas are configured to be connected to one another in a detachably with a positive-lock. The belt ends can be fastened at the belt fastening areas via a corresponding permanent fastening mechanism. The first belt fastening area and/or the second belt fastening area are configured such that they have a predetermined breaking region (140), by means of which an irreversible break takes place at the belt fastening area having the predetermined breaking region when a predefined limit pulling force (150) is applied at the detachable belt connector system.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: November 9, 2021
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Siegbert Tolk, Lennart Wenzel, Tim Blöcker
  • Publication number: 20210337909
    Abstract: A safety helmet (100) includes an arched helmet shell (7), a front holding element (2) attached to the helmet shell (7) and a curved front bearing element (5). The front bearing element lies flat against the forehead of a user of the safety helmet (100). A rigid intermediate piece (1) bridges a distance between the front holding element (2) and the front bearing element (5). This intermediate piece (1) is mechanically connected to the front holding element (2) and to the front bearing element (5), wherein at least one connection is detachable. The present invention pertains, furthermore, to two arrangements with such a safety helmet and with two alternative intermediate pieces or with two alternative front bearing elements with a respective intermediate piece.
    Type: Application
    Filed: April 28, 2021
    Publication date: November 4, 2021
    Inventors: Siegbert TOLK, Jasser RAHMATYAN
  • Publication number: 20210145131
    Abstract: A detachable belt connector system (100), for the detachable connection of belt ends (770, 775), includes a first connector element (110) with a first connection area (112) and a first belt fastening area (116) and a second connector element (120) with a second connection area (122) and a second belt fastening area (126). The first and second connection areas are configured to be connected to one another in a detachably with a positive-lock. The belt ends can be fastened at the belt fastening areas via a corresponding permanent fastening mechanism. The first belt fastening area and/or the second belt fastening area are configured such that they have a predetermined breaking region (140), by means of which an irreversible break takes place at the belt fastening area having the predetermined breaking region when a predefined limit pulling force (150) is applied at the detachable belt connector system.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 20, 2021
    Inventors: Siegbert TOLK, Lennart WENZEL, Tim BLÖCKER
  • Patent number: 7770581
    Abstract: A breathing mask shall has an inspiration valve (4) that can be replaced in a simple manner. The breathing valve (4) is designed for this purpose as a modular assembly unit that can be inserted into the breathing gas channel (3) from the outer side (10) of the mask.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: August 10, 2010
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Olaf Balke, Manfred Gdulla, Siegbert Tolk
  • Patent number: 7770240
    Abstract: The connection of a breathing mask to a safety helmet provides increased wearing comfort. A fastening mount (12) with circular arc-shaped inner contour (14) is provided, and the bracket for the breathing mask has a projection corresponding thereto. The projection is in contact with the inner contour (14) of the fastening mount (12), so that the bracket is displaceable in relation to the fastening mount (12) in a rotatingly movable manner.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: August 10, 2010
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Manfred Gdulla, Michael Rosert, Dirk Feil, Siegbert Tolk
  • Patent number: 7575004
    Abstract: A gas mask for normal pressure operation and overpressure operation allows changeover of the expiration valve (4) from normal pressure operation to overpressure operation is made possible in a simple manner. The pretension of the valve spring (7) of the expiration valve (4) is adjusted by an angle lever (10) pivotable about an axis of rotation (13).
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: August 18, 2009
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Rüdiger Weich, Thomas Grassl, Rüdiger Müller, Manfred Gdulla, Siegbert Tolk, Olaf Balke
  • Publication number: 20060277665
    Abstract: The connection of a breathing mask to a safety helmet provides increased wearing comfort. A fastening mount (12) with circular arc-shaped inner contour (14) is provided, and the bracket for the breathing mask has a projection corresponding thereto. The projection is in contact with the inner contour (14) of the fastening mount (12), so that the bracket is displaceable in relation to the fastening mount (12) in a rotatingly movable manner.
    Type: Application
    Filed: May 16, 2006
    Publication date: December 14, 2006
    Applicant: Drager Safety AG & Co. KGaA
    Inventors: Manfred GDULLA, Michael ROSERT, Dirk FEIL, Siegbert TOLK
  • Publication number: 20060266363
    Abstract: A breathing mask shall has an inspiration valve (4) that can be replaced in a simple manner. The breathing valve (4) is designed for this purpose as a modular assembly unit that can be inserted into the breathing gas channel (3) from the outer side (10) of the mask.
    Type: Application
    Filed: January 25, 2006
    Publication date: November 30, 2006
    Applicant: Drager Safety AG & Co. KgaA
    Inventors: Olaf Balke, Manfred Gdulla, Siegbert Tolk
  • Publication number: 20060086360
    Abstract: A gas mask for normal pressure operation and overpressure operation allows changeover of the expiration valve (4) from normal pressure operation to overpressure operation is made possible in a simple manner. The pretension of the valve spring (7) of the expiration valve (4) is adjusted by an angle lever (10) pivotable about an axis of rotation (13).
    Type: Application
    Filed: August 2, 2005
    Publication date: April 27, 2006
    Applicant: Drager Safety AG & Co. KGaA
    Inventors: Rudiger Weich, Thomas Grassl, Rudiger Muller, Manfred Gdulla, Siegbert Tolk, Olaf Balke