Patents by Inventor Dirk Volkmer

Dirk Volkmer 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: 20240391834
    Abstract: A multi-component inorganic anchoring system, for chemical fastening of anchors and post-installed reinforcing bars in mineral substrates, includes a curable powdery aluminous cement component A and an initiator component B in an aqueous phase for initiating a curing process. The powdery aluminous cement component A includes an aluminous cement component based on powdery calcium aluminate cement and component B includes an accelerator constituent and water. Furthermore, at least part of the calcium aluminate cement of component A has an average particle size in the range of from 0.5 to 15 ?m. Methods of using the calcium aluminate cement in a multi-component inorganic anchoring system to increase load values and methods for chemical fastening of anchors in mineral substrates can be performed.
    Type: Application
    Filed: August 1, 2024
    Publication date: November 28, 2024
    Applicant: Hilti Aktiengesellschaft
    Inventors: Armin Pfeil, Vanessa Sirch, Markus Schönlein, Pascal Beroll, Dirk Volkmer
  • Patent number: 12077475
    Abstract: A multi-component inorganic anchoring system, for chemical fastening of anchors and post-installed reinforcing bars in mineral substrates, includes a curable powdery aluminous cement component A and an initiator component B in an aqueous phase for initiating a curing process. The powdery aluminous cement component A includes an aluminous cement component based on powdery calcium aluminate cement and component B includes an accelerator constituent and water. Furthermore, at least part of the calcium aluminate cement of component A has an average particle size in the range of from 0.5 to 15 ?m. Methods of using the calcium aluminate cement in a multi-component inorganic anchoring system to increase load values and methods for chemical fastening of anchors in mineral substrates can be performed.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: September 3, 2024
    Assignee: Hilti Aktiengesellschaft
    Inventors: Armin Pfeil, Vanessa Sirch, Markus Schönlein, Pascal Beroll, Dirk Volkmer
  • Patent number: 11718564
    Abstract: A two-component inorganic injection mortar system includes a curable aqueous-phase aluminous cement component A and an initiator component B in aqueous-phase for initiating the curing process. Component A includes at least one blocking agent which is phosphoric acid, metaphosphoric acid, phosphorous acid or phosphonic acid, at least one plasticizer and water. Component B includes an initiator, at least one retarder, at least one mineral filler and water. The curable aqueous-phase aluminous cement component A includes calcium aluminate cement having an average particle size in the range of from 0.5 to 15 ?m. A two-component system, which is ready-for-use, can be used for chemical fastening of anchors, such as metal elements, or in mineral substrates, such as structures made of brickwork, concrete, pervious concrete or natural stone.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 8, 2023
    Assignee: Hilti Aktiengesellschaft
    Inventors: Armin Pfeil, Markus Schönlein, Dirk Volkmer, Pascal Beroll
  • Publication number: 20210387916
    Abstract: A multi-component inorganic anchoring system, for chemical fastening of anchors and post-installed reinforcing bars in mineral substrates, includes a curable powdery aluminous cement component A and an initiator component B in an aqueous phase for initiating a curing process. The powdery aluminous cement component A includes an aluminous cement component based on powdery calcium aluminate cement and component B includes an accelerator constituent and water. Furthermore, at least part of the calcium aluminate cement of component A has an average particle size in the range of from 0.5 to 15 ?m. Methods of using the calcium aluminate cement in a multi-component inorganic anchoring system to increase load values and methods for chemical fastening of anchors in mineral substrates can be performed.
    Type: Application
    Filed: October 2, 2019
    Publication date: December 16, 2021
    Applicant: Hilti Aktiengesellschaft
    Inventors: Armin Pfeil, Vanessa Sirch, Markus Schönlein, Pascal Beroll, Dirk Volkmer
  • Publication number: 20210380481
    Abstract: A two-component inorganic injection mortar system includes a curable aqueous-phase aluminous cement component A and an initiator component B in aqueous-phase for initiating the curing process. Component A includes at least one blocking agent which is phosphoric acid, metaphosphoric acid, phosphorous acid or phosphonic acid, at least one plasticizer and water. Component B includes an initiator, at least one retarder, at least one mineral filler and water. The curable aqueous-phase aluminous cement component A includes calcium aluminate cement having an average particle size in the range of from 0.5 to 15 ?m. A two-component system, which is ready-for-use, can be used for chemical fastening of anchors, such as metal elements, or in mineral substrates, such as structures made of brickwork, concrete, pervious concrete or natural stone.
    Type: Application
    Filed: October 2, 2019
    Publication date: December 9, 2021
    Applicant: Hilti Aktiengesellschaft
    Inventors: Armin Pfeil, Markus Schönlein, Dirk Volkmer, Pascal Beroll