Patents by Inventor Philippe HOLENSTEIN

Philippe HOLENSTEIN 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: 11925940
    Abstract: Roller packages (IO) for grinding devices (70), comprising a first roll (11), which is maintained by at least one first bearing body (13), and a second roll (12), which is maintained by at least one second bearing body (14). The first bearing body (13) and the second bearing body (14) are prestressed against each other and comprise stop elements (17,19) with stop surfaces (18, 20), the contact of which counteracts a contact of the rolls (11, 12). The rotational position of the first stop element (17) determines the minimum width of the grinding gap. Also disclosed are grinding devices (70), methods for operating a roll assembly (10) and methods for determining the radial force acting between the rolls (11, 12) of a roll assembly (10).
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: March 12, 2024
    Assignee: Bühler AG
    Inventors: Philippe Holenstein, Lukas Studerus, Daniel Rickenbach, Daniel Mark, Heribert Weber
  • Patent number: 11618034
    Abstract: A roller mill (1) including a housing (2) having a milling-material inlet (3), at least one milling-material outlet (4), and at least two cambered rollers (5, 5?) which are each arranged in the housing (2) so as to be rotatable about a roller axis (6). At least one roller (5) is assigned a scraper (7). The scraper (7) has a blade (8) for scraping milling material from a roller surface (9) with a scraper edge (10) which extends over an entire length (L) of the blade (8), and comprises a holder (11) with a receiving region (12). The holder is arranged in the housing (2) so as to be tiltable about an axis (13) parallel to the roller axis. An elastic bearing (14) is arranged between the blade (8) and the receiving region (12).
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: April 4, 2023
    Assignee: Bühler AG
    Inventors: Daniel Mark, Daniel Rickenbach, Philippe Holenstein
  • Publication number: 20220184628
    Abstract: Roller packages (IO) for grinding devices (70), comprising a first roll (11), which is maintained by at least one first bearing body (13), and a second roll (12), which is maintained by at least one second bearing body (14). The first bearing body (13) and the second bearing body (14) are prestressed against each other and comprise stop elements (17,19) with stop surfaces (18, 20), the contact of which counteracts a contact of the rolls (11, 12). The rotational position of the first stop element (17) determines the minimum width of the grinding gap. Also disclosed are grinding devices (70), methods for operating a roll assembly (10) and methods for determining the radial force acting between the rolls (11, 12) of a roll assembly (10).
    Type: Application
    Filed: March 4, 2022
    Publication date: June 16, 2022
    Inventors: Philippe HOLENSTEIN, Lukas STUDERUS, Daniel RICKENBACH, Daniel MARK, Heribert WEBER
  • Publication number: 20220184627
    Abstract: Roller packages (IO) for grinding devices (70), comprising a first roll (11), which is maintained by at least one first bearing body (13), and a second roll (12), which is maintained by at least one second bearing body (14). The first bearing body (13) and the second bearing body (14) are prestressed against each other and comprise stop elements (17,19) with stop surfaces (18, 20), the contact of which counteracts a contact of the rolls (11, 12). The rotational position of the first stop element (17) determines the minimum width of the grinding gap. Also disclosed are grinding devices (70), methods for operating a roll assembly (10) and methods for determining the radial force acting between the rolls (11, 12) of a roll assembly (10).
    Type: Application
    Filed: March 4, 2022
    Publication date: June 16, 2022
    Inventors: Philippe HOLENSTEIN, Lukas STUDERUS, Daniel RICKENBACH, Daniel MARK, Heribert WEBER
  • Patent number: 11266993
    Abstract: Roller packages (IO) for grinding devices (70), comprising a first roller (II), which is maintained by at least one first bearing body (13), and a second roller (12), which is maintained by at least one second bearing body (14). The first bearing body (13) and the second bearing body (14) are prestressed against each other and comprise stop elements (17, 19) with stop surfaces (18, 20), the contact of which counteracts a contact of the rollers (II, 12). The rotational position of the first stop element (17) determines the minimum width of the grinding gap. Also disclosed are grinding devices (70), methods for operating a roller group (IO) and methods for determining the radial force acting between the rollers (II, 12) of a roller group (IO).
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: March 8, 2022
    Assignee: BÜHLER AG
    Inventors: Philippe Holenstein, Lukas Studerus, Daniel Rickenbach, Daniel Mark, Heribert Weber
  • Publication number: 20210245167
    Abstract: Roller packages (IO) for grinding devices (70), comprising a first roller (II), which is maintained by at least one first bearing body (13), and a second roller (12), which is maintained by at least one second bearing body (14). The first bearing body (13) and the second bearing body (14) are prestressed against each other and comprise stop elements (17, 19) with stop surfaces (18, 20), the contact of which counteracts a contact of the rollers (II, 12). The rotational position of the first stop element (17) determines the minimum width of the grinding gap. Also disclosed are grinding devices (70), methods for operating a roller group (IO) and methods for determining the radial force acting between the rollers (II, 12) of a roller group (IO).
    Type: Application
    Filed: May 28, 2019
    Publication date: August 12, 2021
    Inventors: Philippe HOLENSTEIN, Lukas STUDERUS, Daniel RICKENBACH, Daniel MARK, Heribert WEBER
  • Publication number: 20210213456
    Abstract: A roller mill (1) including a housing (2) having a milling-material inlet (3), at least one milling-material outlet (4), and at least two cambered rollers (5, 5?) which are each arranged in the housing (2) so as to be rotatable about a roller axis (6). At least one roller (5) is assigned a scraper (7). The scraper (7) has a blade (8) for scraping milling material from a roller surface (9) with a scraper edge (10) which extends over an entire length (L) of the blade (8), and comprises a holder (11) with a receiving region (12). The holder is arranged in the housing (2) so as to be tiltable about an axis (13) parallel to the roller axis. An elastic bearing (14) is arranged between the blade (8) and the receiving region (12).
    Type: Application
    Filed: May 27, 2019
    Publication date: July 15, 2021
    Inventors: Daniel MARK, Daniel RICKENBACH, Philippe HOLENSTEIN
  • Patent number: 10967381
    Abstract: A transmission (1) for a feed and foodstuff roller mill (2) with a plurality of rotatably drivable rollers. The transmission (1) has a bearing housing (3) in which an input shaft (4), a first output shaft (5) and a second output shaft (6) are accommodated. The input shaft (4) and the first output shaft (5) are arranged perpendicular to one another and the first output shaft (5) and the second output shaft (6) are arranged parallel to one another. The input shaft (4) and the first output shaft (5) are operatively connected to one another via a bevel gearwheel pair (7, 7?), and the first output shaft (5) and the second output shaft (6) are operatively connected to one another via a torque transmitting arrangement.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: April 6, 2021
    Assignee: BÜHLER AG
    Inventors: Daniel Rickenbach, Daniel Mark, Philippe Holenstein, Kaspar Schindler
  • Publication number: 20200156080
    Abstract: A transmission (1) for a feed and foodstuff roller mill (2) with a plurality of rotatably drivable rollers which comprises a bearing housing (3) in which an input shaft (4), a first output shaft (5) and a second output shaft (6) are accommodated. The input shaft (4) and the first output shaft (5) are arranged perpendicular to one another and the first output shaft (5) and the second output shaft (6) are arranged parallel to one another. The input shaft (4) and the first output shaft (5) are operatively connected to one another via a bevel gearwheel pair (7, 7?), and the first output shaft (5) and the second output shaft (6) are operatively connected to one another via a torque transmitting arrangement.
    Type: Application
    Filed: May 8, 2018
    Publication date: May 21, 2020
    Inventors: Daniel RICKENBACH, Daniel MARK, Philippe HOLENSTEIN, Kaspar SCHINDLER
  • Patent number: D924947
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 13, 2021
    Assignee: BÜHLER AG
    Inventors: Dominic Spiess, Lukas Studerus, Daniel Mark, Philippe Holenstein, Daniel Rickenbach
  • Patent number: D934928
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: November 2, 2021
    Assignee: BÜHLER AG
    Inventors: Dominic Spiess, Lukas Studerus, Daniel Mark, Philippe Holenstein, Daniel Rickenbach
  • Patent number: D941896
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: January 25, 2022
    Assignee: BÜHLER AG
    Inventors: Dominic Spiess, Lukas Studerus, Daniel Mark, Philippe Holenstein, Daniel Rickenbach