# US 9,873,124 B2 · Crossflow impact device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,873,124 B2 - Document ID: US9873124B2 - Status: Granted - Kind: B2 - Application number: 14/909,769 - Filed: 2014-08-06 - Published: 2016-07-14 - Granted: 2018-01-23 - Earliest claimed: 2013-08-13 - Assignees: Buhler AG - Applicants: BüHler AG - Inventors: Jürgen Moosmann; Andreas Meile - Web page: https://patentgrep.com/patent/US9873124B2 ## CPC - B02C 13/06: with beaters rigidly connected to the rotor - A01M 17/008: {Destruction of vermin in foodstuffs} - B02C 9/00: Other milling methods or mills specially adapted for grain - B02C 13/286: Feeding or discharge - B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02}) - A01M: CATCHING, TRAPPING OR SCARING OF ANIMALS (appliances for catching swarms or drone-catching A01K57/00; fishing A01K69/00 - {A01K99/00}; biocides, pest repellants or attractants A01N); APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS ## Abstract A beating device (1) for inactivating insects in a pourable feedstuff or foodstuff, with a housing (2), which has at least one inlet opening (3) and at least one outlet opening (4) for the material to be treated. A drum (6) is arranged in the housing (2) and rotatably about an axis of rotation (5). A plurality of blade elements (9) of a first type extend approximately parallel to the axis of rotation (5) and have a beating surface (10) arranged between two end parts (7, 8) of the drum (8). The drum is partially (8) circumferentially surrounded by a wall (11) of the housing (2) and the at least one inlet opening (3) and the at least one outlet opening (4) are formed in the wall (11). ## Claims ### Claim 1 An impact device for inactivation of insects in a pourable feedstuff or foodstuff product without significantly altering a grain size distribution of the product, said impact device having a housing which comprises respectively at least one inlet opening and one outlet opening for the product to be treated, and a drum which is arranged in the housing so as to be rotatable about a rotational axis, wherein a plurality of first type blade elements, which extend approximately parallel to the rotational axis and have an impact surface, are arranged between two end parts of the drum, a plurality of second type blade elements, which extend approximately parallel to the rotational axis and have a blade face, are arranged between the end parts of the drum, the blade face of the second type blade elements is inclined between 15° and 75° with reference to the radius of the drum, and the drum is surrounded, in part, circumferentially by a wall of the housing, and the at least one inlet opening and the at least one outlet opening are both formed at spaced apart circumferential regions of the wall surrounding the drum. ### Claim 2 (depends on 1) The device as claimed in claim 1, wherein the at least one inlet opening and the at least one outlet opening are arranged offset to one another with reference to the rotational axis by more than 90° and less than 270°. ### Claim 3 (depends on 1) The device as claimed in claim 1, wherein the first type blade elements comprise a substantially flat impact surface with a width of between 5 mm and 25 mm and a substantially rectangular cross section. ### Claim 4 (depends on 1) The device as claimed in claim 1, wherein the impact surface of the first type blade elements is inclined between 0° and 45° with reference to a radius of the drum. ### Claim 5 (depends on 1) The device as claimed in claim 1, wherein the first type blade elements are arranged radially at substantially identical spacings with reference to the rotational axis. ### Claim 6 (depends on 1) The device as claimed in claim 1, wherein adjacent first type blade elements are arranged at substantially identical spacings from one another. ### Claim 7 (depends on 1) The device as claimed in claim 1, wherein the blade face of second type blade elements is substantially flat with a width of between 5 mm and 25 mm and the second type blade elements comprise an inclined face, and the blade face and the inclined face meet at an edge. ### Claim 8 (depends on 1) The device as claimed in claim 1, wherein the second type blade elements are arranged radially at substantially identical spacings with reference to the rotational axis. ### Claim 9 (depends on 1) The device as claimed in claim 1, wherein the first type blade elements and the second type blade elements are arranged in each case alternately in a circumferential direction of the drum. ### Claim 10 (depends on 1) The device as claimed in claim 1, wherein the second type blade elements are situated radially outside the first type blade elements with reference to the rotational axis. ### Claim 11 (depends on 10) The device as claimed in claim 10, wherein in a region of the at least one of the at least one inlet opening and the at least one outlet opening the wall comprises at least one wiper element, a radial gap width, with reference to the rotational axis, between the at least one wiper element and the second type blade elements is between 0.5 mm and 5 mm. ### Claim 12 A method for inactivation of insects in a pourable feedstuff or foodstuff product without significantly altering a grain size distribution of the product, wherein said method includes the following step: circumferential feeding of the product to be treated to a drum which rotates about a rotational axis and is provided with a plurality of first type blade elements, the plurality of first type blade elements extend approximately parallel to the rotational axis, have an impact surface and are arranged between two end parts of the drum, and further providing the drum with a plurality of second type blade elements, which extend approximately parallel to the rotational axis, have a blade face and are arranged between the end parts of the drum, and the blade face of the second type blade elements is inclined between 15 and 75 with reference to the radius of the drum, said circumferential feeding being in a substantially radial direction with respect to the rotational axis of the drum; and circumferentially removing the product, treated by the drum, at a circumferential location which is spaced from the circumferential feeding of the product to be treated. ### Claim 13 An impact device for inactivation of insects in a pourable feedstuff or foodstuff product, said impact device having a housing which comprises respectively at least one inlet opening and one outlet opening for the product to be treated, and a drum which is arranged in the housing so as to be rotatable about a rotational axis, wherein a plurality of first type blade elements, which extend approximately parallel to the rotational axis and have an impact surface, are arranged between two end parts of the drum, and the drum is surrounded in part circumferentially by a wall of the housing and the at least one net opening and the at least one outlet opening are realized in the wall; a plurality of second type blade elements, which extend approximately parallel to the rotational axis, are arranged between the end parts of the drum; and the blade face of the second type blade elements is inclined between 15° and 75° with reference to a radius of the drum.