Patents Assigned to Machinefabriek Kreber B.V.
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Patent number: 11745156Abstract: Method of producing prills includes providing a hollow body rotatable about a first axis, the body having a wall rotationally symmetrical around the first axis forming an interior space, the wall including nozzles; providing a second body disposed in the hollow body such that a gap exists between the hollow body and the second body; supplying liquid to the gap; generating jets of liquid from the nozzles radially outward by driving the rotational motion of the hollow body and/or second body around the first axis of rotation using a rotary drive unit; applying a reciprocal pressure excitation on the jets of liquid by moving the hollow body and/or second body along the first axis; and decoupling the rotations of the one of the hollow body and second body and a reciprocating drive-unit.Type: GrantFiled: February 5, 2021Date of Patent: September 5, 2023Assignee: MACHINEFABRIEK KREBER B.V.Inventors: Paulus Johannes Nicolaas Dits, Marcus Wilhelmus Maria Groenewegen
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Publication number: 20230056524Abstract: Method of producing prills includes providing a hollow body rotatable about a first axis, the body having a wall rotationally symmetrical around the first axis forming an interior space, the wall including nozzles; providing a second body disposed in the hollow body such that a gap exists between the hollow body and the second body; supplying liquid to the gap; generating jets of liquid from the nozzles radially outward by driving the rotational motion of the hollow body and/or second body around the first axis of rotation using a rotary drive unit; applying a reciprocal pressure excitation on the jets of liquid by moving the hollow body and/or second body along the first axis; and decoupling the rotations of the one of the hollow body and second body and a reciprocating drive-unit.Type: ApplicationFiled: February 5, 2021Publication date: February 23, 2023Applicant: MACHINEFABRIEK KREBER B.V.Inventors: Paulus Johannes Nicolaas DITS, Marcus Wilhelmus Maria GROENEWEGEN
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Publication number: 20230051154Abstract: An apparatus for producing prills includes a hollow body rotatable about a first axis, the body having a wall rotationally symmetrical around the first axis forming an interior space, the wall including nozzles for generating jets of liquid in a radially outward direction with respect to the first axis when rotating the hollow body; a second body disposed in the hollow body forming a gap between the hollow body and the second body; a liquid inlet for supplying a flow of liquid to the gap; a rotary drive unit for driving the hollow body around the first axis; a reciprocating drive-unit for reciprocally moving the hollow body and/or second body with respect to the other body along the first axis of rotation for applying reciprocal pressure on the jets; and a coupling for enabling relative rotations between the one of the hollow body and second body and the reciprocating drive-unit.Type: ApplicationFiled: February 5, 2021Publication date: February 16, 2023Applicant: MACHINEFABRIEK KREBER B.V.Inventors: Paulus Johannes Nicolaas DITS, Marcus Wilhelmus Maria GROENEWEGEN
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Patent number: 4236738Abstract: A joint for two pipe ends comprising a ring having a spherical outer surface to be mounted on one of the pipe ends, and a body having a complementary spherical inner surface to be mounted on the other pipe end, while for axially fixing the ring with respect to the body a retaining ring is present to engage the ring with a spherical inner surface, which retaining ring can be connected to the body, while sealing means are provided, wherein substantially concentrically in the assembly of the body and the ring a second, similar assembly of a second body connected to the respective pipe ends and a second ring having complementary spherical surfaces is provided, in which the sealing means are positioned.Type: GrantFiled: April 11, 1978Date of Patent: December 2, 1980Assignee: Machinefabriek Kreber B.V.Inventor: Martinus Poot