Patents by Inventor Roland Walter

Roland Walter 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: 20240082958
    Abstract: The present disclosure is directed to capsules, for example, softgel capsules for oral administration that have on their surface laser etching that penetrates at least partially into the surface of the capsule, reduces the structural integrity of the capsule while preventing exposure of the interior contents to the outside environment, and increases the rate of release of active ingredients contained within.
    Type: Application
    Filed: October 8, 2020
    Publication date: March 14, 2024
    Applicants: Bayer HealthCare LLC, Ackley Machine Corporation
    Inventors: Debanjan Das, Reinhard Walter, Javier Zumeta Perez, Alberto Prior Cabanillas, Gerard Meisel, Carlos Figueroa, Mark David Ford, Roland Norman Thurston, Jr.
  • Publication number: 20240067781
    Abstract: A composition is made by melt-mixing pellets and a further propylene-based polymer, wherein the pellets are pellets of a glass fiber-reinforced thermoplastic polymer composition having a sheathed continuous multifilament strand including a core that extends in the longitudinal direction and a polymer sheath which intimately surrounds said core, wherein the core includes at least one continuous glass multifilament strand, the polymer sheath has a thermoplastic polymer composition containing a polyolefin and having a melt flow index as measured according to ISO 1133-1:2011 (2.16 kg/230° C.) of at least 1.0 dg/min and less than 47 dg/min, wherein the length of the glass filaments in the pellets is substantially the same as the pellet length, and is 10 to 55 mm, wherein the further polyolefin has a melt flow index as measured according to ISO 1133-1:2011 (2.16 kg/230° C.) of less than 20 dg/min.
    Type: Application
    Filed: December 10, 2021
    Publication date: February 29, 2024
    Inventors: Petya Dochkova Yaneva, Robert Walter Venderbosch, Roland van Giesen, Maria Soliman, Henrica Norberta Alberta Maria Steenbakkers-Menting, Amol Prabhakar Avhad, Carlos Pereira Cadena
  • Publication number: 20220397490
    Abstract: A protective housing for a microtome blade (4) includes a frame that holds the microtome blade (4) and a clip (2) that can be pivoted relative to the frame. In a first position, the clip (2) covers a cutting edge of the microtome blade (4) received in the frame. A microtome blade holder (6) is configured to receive an arrangement (100) composed of the protective housing and the microtome blade (4).
    Type: Application
    Filed: November 11, 2020
    Publication date: December 15, 2022
    Inventor: Roland WALTER
  • Patent number: 10345198
    Abstract: A method of producing thin sections using a microtome is disclosed. A hand wheel (32) is manually driven for producing a first thin section, and wherein the rotational movement of the hand wheel (32) is detected by an encoder (38), and a profile of the rotational movement is determined. The determined profile is stored and selected for production of at least a second thin section. A motor (24) is driven for generating a cutting movement between a cutting unit (16) and a sample holder (12) in accordance with the respective stored profile selected for producing the second thin section. A microtome (10) to carry out this method is also disclosed.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: July 9, 2019
    Assignee: Leica Biosystems Nussloch GmbH
    Inventors: Roland Walter, Markus Berberich, Markus Wittman
  • Patent number: 9541473
    Abstract: The present invention relates to a microtome (10) for cutting thin sections, including a sample holder (12), a cutting unit (16), and a drive unit (16) for producing a feed movement between the sample holder (12) and the cutting unit (16) for setting the thickness of the sample sections. The drive unit (22) includes a piezoelectric linear actuator (50) for producing the feed movement.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: January 10, 2017
    Assignee: Leica Biosystems Nussloch GmbH
    Inventor: Roland Walter
  • Publication number: 20160245728
    Abstract: The present invention relates to a method of producing thin sections by means of a microtome, wherein a hand wheel (32) is manually driven for producing a first thin section, and wherein the rotational movement of the hand wheel (32) is detected by means of an encoder (38), and a profile of the rotational movement is determined. The determined profile is stored and selected for production of at least a second thin section. A motor (24) is driven for generating a cutting movement between a cutting unit (16) and a sample holder (12) in accordance with the respective stored profile selected for producing the second thin section. The invention further relates to a microtome (10) by means of which the above method is carried out.
    Type: Application
    Filed: August 18, 2014
    Publication date: August 25, 2016
    Inventors: Roland WALTER, Markus BERBERICH, Markus WITTMAN
  • Publication number: 20160114414
    Abstract: A pipe cutting apparatus (10), especially for cutting or machining a plastics, resin or soft-metallic pipe (20), comprises a frame (30a, 30b; 32a, 32b) for receiving the pipe (20) to be cut, and cutting means (102) rotatable by externally powered drive means (60) with respect to the pipe (20) to perform a cut, wherein the cutting means (102) comprises a cutting tool (102) carried on a pivotally mounted tool holder (100) and biased into cutting relationship with the outer surface of the pipe (20) by biasing means such as a coil spring (104).
    Type: Application
    Filed: November 14, 2012
    Publication date: April 28, 2016
    Inventors: Benjamin Roland Walter Fermor SHEPHERD, Peta Anne Shepherd
  • Patent number: 9304064
    Abstract: The invention relates to a knife holder (100) having a blade changing apparatus (102). The knife holder has a first blade receptacle (111) defining a cutting position, a securing device (130, 141, 142) for securing a blade (201) received in the first blade receptacle (111), a second blade receptacle (112) defining an output position, and an ejection device (141, 143, 144a) for ejecting a blade (201) received in the first blade receptacle (111) out of the first blade receptacle (111). The first and the second blade receptacles are arranged in the knife holder in such a way that a blade ejected from the first blade receptacle (111) can travel by gravity into the second blade receptacle (112).
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: April 5, 2016
    Assignee: Leica Biosystems Nussloch GmbH
    Inventor: Roland Walter
  • Patent number: 9033184
    Abstract: A blade dispenser (100) has a blade supply container (110), a blade disposal container (120), and a detachable and reconnectable connecting means (130, 131, 132) that is embodied to connect the blade supply container (110) and blade disposal container (120) detachably to one another. The blade supply container (110) has a blade supply container upper side and a blade supply container underside, and is embodied to receive a blade stack (111) made up of multiple mutually abutting blades (112, 115). The blade supply container (110) also has a removal opening (116) through which at least one blade (112, 115) of the blade stack (111) is removable from the blade supply container (110). The blade disposal container (120) has a blade disposal container upper side and a blade disposal container underside, and is embodied to receive blades (120) to be disposed of.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 19, 2015
    Assignee: LEICA BIOSYSTEMS NUSSLOCH GMBH
    Inventor: Roland Walter
  • Patent number: 8967026
    Abstract: The present invention relates to a microtome (10) including a sample holder (12) a cutting unit (16), and a drive unit (22) capable of producing a relative movement between the sample holder (12) and the cutting unit (16) for cutting the sample. In addition, the microtome (10) has a handwheel (32) and an encoder (38). A control unit (40) controls the drive unit (22) as a function of the rotational movement of the handwheel (32) detected by the encoder (38) and in such a way that, in a first operating mode, the relative movement produced between the sample holder (12) and the cutting element (16) by the drive unit (22) when the handwheel (32) is rotated through a full revolution has a maximum first stroke length and that, in a second operating mode, the relative movement has a preset second stroke length shorter than the maximum first stroke length.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: March 3, 2015
    Assignee: Leica Biosystems Nussloch GmbH
    Inventor: Roland Walter
  • Patent number: 8687858
    Abstract: A method and a device for producing thin sections of a sample by means of a microtome is described, in which a camera acquires at least one image of a surface generated by sectioning of the sample. With the aid of an evaluation device, the image of the surface is evaluated in terms of predefined characteristic values of a section quality. As a function of the characteristic values that are identified, a decision is then made as to whether the section of the sample is accepted or not.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: April 1, 2014
    Assignee: Leica Biosystems Nussloch GmbH
    Inventors: Roland Walter, Andreas Laudat, Annett Leonhardt
  • Publication number: 20140033888
    Abstract: The invention relates to a knife holder (100) having a blade changing apparatus (102). The knife holder has a first blade receptacle (111) defining a cutting position, a securing means (130, 141, 142) for securing a blade (201) received in the first blade receptacle (111), a second blade receptacle (112) defining an output position, and an ejection means (141, 143, 144a) for ejecting a blade (201) received in the first blade receptacle (111) out of the first blade receptacle (111). The first and the second blade receptacles are arranged in the knife holder in such a way that a blade ejected from the first blade receptacle (111) can travel by gravity into the second blade receptacle (112).
    Type: Application
    Filed: July 23, 2013
    Publication date: February 6, 2014
    Applicant: Leica Biosystems Nussloch GmbH
    Inventor: Roland WALTER
  • Publication number: 20140034665
    Abstract: A blade dispenser (100) has a blade supply container (110), a blade disposal container (120), and a detachable and reconnectable connecting means (130, 131, 132) that is embodied to connect the blade supply container (110) and blade disposal container (120) detachably to one another. The blade supply container (110) has a blade supply container upper side and a blade supply container underside, and is embodied to receive a blade stack (111) made up of multiple mutually abutting blades (112, 115). The blade supply container (110) also has a removal opening (116) through which at least one blade (112, 115) of the blade stack (111) is removable from the blade supply container (110). The blade disposal container (120) has a blade disposal container upper side and a blade disposal container underside, and is embodied to receive blades (120) to be disposed of.
    Type: Application
    Filed: July 23, 2013
    Publication date: February 6, 2014
    Applicant: Leica Biosystems Nussloch GmbH
    Inventor: Roland WALTER
  • Publication number: 20140026727
    Abstract: The present invention relates to a microtome (10) for cutting thin sections, including a sample holder (12), a cutting unit (16), and a drive unit (16) for producing a feed movement between the sample holder (12) and the cutting unit (16) for setting the thickness of the sample sections. The drive unit (22) includes a piezoelectric linear actuator (50) for producing the feed movement.
    Type: Application
    Filed: June 25, 2013
    Publication date: January 30, 2014
    Inventor: Roland WALTER
  • Publication number: 20140026728
    Abstract: The present invention relates to a microtome (10) including a sample holder (12) a cutting unit (16), and a drive unit (22) capable of producing a relative movement between the sample holder (12) and the cutting unit (16) for cutting the sample. In addition, the microtome (10) has a handwheel (32) and an encoder (38). A control unit (40) controls the drive unit (22) as a function of the rotational movement of the handhweel (32) detected by the encoder (38) and in such a way that, in a first operating mode, the relative movement produced between the sample holder (12) and the cutting element (16) by the drive unit (22) when the handwheel (32) is rotated through a full revolution has a maximum first stroke length and that, in a second operating mode, the relative movement has a preset second stroke length shorter than the maximum first stroke length.
    Type: Application
    Filed: June 25, 2013
    Publication date: January 30, 2014
    Inventor: Roland WALTER
  • Patent number: 8609042
    Abstract: A method of cutting at least one thin section from a sample block that is arranged in a cassette and tagging at least one specimen slide such that it can be allocated to the specific sample block from which the thin section has been cut. The method includes removing a cassette from a cassette magazine; reading the machine-readable coded information of the cassette identifier; generating by at least one tagging unit a specimen slide identifier that interrelates to the cassette identifier read by the reading unit; inserting the cassette into a microtome; transferring data from the microtome to a tagging unit via a data transfer path while the cassette is inserted into the microtome; enabling tagging of the specimen slide; tagging the specimen slide by the tagging unit; and cutting the thin section and transferring it onto the specimen slide that was tagged by the tagging unit.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: December 17, 2013
    Assignee: Leica Biosystems Nussloch GmbH
    Inventors: Roland Walter, Christoph Schmitt
  • Publication number: 20130309717
    Abstract: A method of cutting at least one thin section from a sample block that is arranged in a cassette and tagging at least one specimen slide such that it can be allocated to the specific sample block from which the thin section has been cut. The method includes removing a cassette from a cassette magazine; reading the machine-readable coded information of the cassette identifier; generating by at least one tagging unit a specimen slide identifier that interrelates to the cassette identifier read by the reading unit; inserting the cassette into a microtome; transferring data from the microtome to a tagging unit via a data transfer path while the cassette is inserted into the microtome; enabling tagging of the specimen slide; tagging the specimen slide by the tagging unit; and cutting the thin section and transferring it onto the specimen slide that was tagged by the tagging unit.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 21, 2013
    Inventors: Roland Walter, Christoph Schmitt
  • Patent number: 8512651
    Abstract: An apparatus and method for tagging a specimen slide are described. The apparatus comprises a receiving region for receiving at least one cassette magazine, a reading unit for reading the machine-readable coded information of a cassette identifier of a cassette, and a tagging unit for generating a machine-readable coded information for tagging the specimen slide with a specimen slide identifier that depends on the cassette identifier. Data are transferred from the microtome to the apparatus via the data transfer path as soon as the cassette is inserted into the microtome, and only then can the machine-readable coded information for tagging the specimen slide be applied onto the specimen slide by the tagging unit.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: August 20, 2013
    Assignee: Leica Biosystems Nusslock GmbH
    Inventors: Roland Walter, Christoph Schmitt
  • Patent number: 8487570
    Abstract: The invention relates to a method for operating an electric motor (2) having a phase angle control with the following steps: Applying an AC voltage to a series connection of the electric motor (2) and a switching element (4), particularly a triac, wherein the switching element (4) connects through by applying an ignition signal and suppresses the flow of a current if the amount of current falls below a holding current; determining the time of a zero crossing of a virtual motor current that would flow if the switching element (4) were connected through; and turning on the switching element (4) at an activation time that is dependant on the time of the zero crossing of the virtual motor current.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: July 16, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Roland Walter, Jacek Wiszniewski, Michael Maercker, Klaus Dengler
  • Patent number: 8353232
    Abstract: The present invention relates to a device for braking or locking a shaft (6) of a microtome (1). The microtome (1) comprises the shaft (6), an actuating element (2), a movement mechanism (37) and a housing (38). With the movement mechanism (37) an object to be cut can be moved relative to a knife blade. The actuating element (2) can be manually actuated by an operator. As a result thereof, the shaft (6) can be rotated. Via the shaft (6), the movement mechanism (37) for performing the relative motion between the object and the knife blade can be driven. Further, the present invention relates to a method for operating a device for braking a shaft (6) of a microtome (1). So that the device can be used in a mechanically formed movement mechanism (37), the inventive device is characterized by an actuator and a braking unit (25). The braking unit (25) is connected in a rotatably fixed manner to the shaft (6).
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: January 15, 2013
    Assignee: Leica Biosystems Nussloch GmbH
    Inventors: Roland Walter, Stefan Thiem, Andreas Laudat