A fluid dispensing device comprises a housing body, a fluid container, a reciprocating piston fluid pump, a primary drive element and a spray tip. The housing body is configured to be carried and supported by an operator of the hand held airless fluid dispensing device during operation. The fluid container is supported by the housing body. The reciprocating piston fluid pump is coupled to the housing body and comprises at least two pumping chambers configured to be actuated out of phase by at least one piston. The primary drive element is coupled to the housing body and connected to the reciprocating piston fluid pump to actuate the at least one piston. The spray tip is connected to an outlet of at least one of the pumping chambers.

The present invention relates to a swing rotor assembly for a centrifuge, and more particularly, to a swing rotor assembly for a centrifuge equipped with a bucket fixing portion that fixes the bucket's position to facilitate separation and discharge after centrifuging a sample such as blood or bone marrow put into a decanting kit mounted on a bucket of a centrifuge. According to the present invention, the swing rotor assembly comprising: a rotor head unit consisting of a U-shaped curved portion formed symmetrically to mount the bucket and a bucket fixing portion formed on one side of the bottom surface of the U-shaped curved portion to fix the position of the decanting kit tilted by centrifugal force; a bucket in which a decanting kit is inserted and mounted, installed in the U-shaped curved portion, and rotated up and down by centrifugal force according to the rotation of the rotor head unit; and a driving unit consisting of a rotating shaft portion mounted on the central bottom of the rotor head unit, a driving transmission portion that transmits driving power to the rotating shaft portion, and a power supply portion connected to the rotating shaft portion to supply DC power to the bucket fixing portion.

The present invention relates to a swing rotor assembly for a centrifuge, and more particularly, to a swing rotor assembly for a centrifuge equipped with a bucket fixing portion that fixes the bucket's position to facilitate separation and discharge after centrifuging a sample such as blood or bone marrow put into a decanting kit mounted on a bucket of a centrifuge. According to the present invention, the swing rotor assembly comprising: a rotor head unit consisting of a U-shaped curved portion formed symmetrically to mount the bucket and a bucket fixing portion formed on one side of the bottom surface of the U-shaped curved portion to fix the position of the decanting kit tilted by centrifugal force; a bucket in which a decanting kit is inserted and mounted, installed in the U-shaped curved portion, and rotated up and down by centrifugal force according to the rotation of the rotor head unit; and a driving unit consisting of a rotating shaft portion mounted on the central bottom of the rotor head unit, a driving transmission portion that transmits driving power to the rotating shaft portion, and a power supply portion connected to the rotating shaft portion to supply DC power to the bucket fixing portion.

The invention relates to a rotor 10 of a centrifuge 100, having a receiving chamber 18 for samples to be centrifuged, a concentrically mounted seat 20 which is associated with a support 106 of a drive shaft 104 of said centrifuge 100, a lid 40 which limits the receiving chamber 18 at the top, which is mounted concentrically relative to the rotor and which has, on its side remote from the receiving chamber 18, a handle 44 for carrying the rotor and the lid 40, and a locking mechanism 50, 34b of lid 40 and rotor, which locking mechanism 50, 34b comprises a locking element 50 which can be moved between a locking position and an unlocking position thereof. In accordance with the invention, part of the handle 44 is adapted to be movable and is operatively connected to a retaining element 48b, 48c, which retaining element 48b, 48c can be moved, by means of the handle 44, between a first position which prevents actuation of the locking element 50, and a second position which releases the locking element 50.

A laboratory centrifuge includes two rotating parts (10, 11) associated by translation locking elements (13) including at least one female element (16) and at least one complementary male element (15). The male element (15) is associated with elements (20) for its operation to the inactive position, which include a rotating actuator member (21) carried by one of the rotating parts (11) and which cooperates with the male element (15) to ensure, by a rotational operation of the rotating actuator member (21) about its axis of rotation (21), the displacement of the associated male element (15) from the active position to the inactive position.

A laboratory centrifuge includes two rotating parts (10, 11) associated by translation locking elements (13) including at least one female element (16) and at least one complementary male element (15). The male element (15) is associated with elements (20) for its operation to the inactive position, which include a rotating actuator member (21) carried by one of the rotating parts (11) and which cooperates with the male element (15) to ensure, by a rotational operation of the rotating actuator member (21) about its axis of rotation (21), the displacement of the associated male element (15) from the active position to the inactive position.

A centrifuge comprises: a drive shaft rotatable about an axis, an adapter connected thereto or forms part thereof; an axially removable rotor mounted on adapter; a quick-release fastener for fixing rotor relative to adapter in removal direction and releasable; an abutment connected to adapter; a locking bearing connected to rotor; locking element as part of quick-release fastener to fix rotor relative to adapter and drive shaft and effective between locking bearing and abutment. Quick-release fastener has actuating element where locking element is operatively connected and being movable between unlocking and locking position linearly in parallel to axis; locking element moves linearly relative to adapter when actuating element moves and is movable at angle () to axis between locking and unlocking position, and locking bearing is oriented at different angle (). Angles (, ) are measured clockwise from axis starting from actuating element's side and between 0 and 90.

A centrifuge comprises: a drive shaft rotatable about an axis, an adapter connected thereto or forms part thereof; an axially removable rotor mounted on adapter; a quick-release fastener for fixing rotor relative to adapter in removal direction and releasable; an abutment connected to adapter; a locking bearing connected to rotor; locking element as part of quick-release fastener to fix rotor relative to adapter and drive shaft and effective between locking bearing and abutment. Quick-release fastener has actuating element where locking element is operatively connected and being movable between unlocking and locking position linearly in parallel to axis; locking element moves linearly relative to adapter when actuating element moves and is movable at angle () to axis between locking and unlocking position, and locking bearing is oriented at different angle (). Angles (, ) are measured clockwise from axis starting from actuating element's side and between 0 and 90.

The invention relates to a flow-through centrifuge which is used, for example, for biotechnical applications, in particular as a blood centrifuge. A driving arrangement and/or transmission arrangement of the flow-through centrifuge comprises a planetary gearset. In the planetary gearset, at least one planetary belt pulley is rotatably supported on a rotating planet carrier. A torque of the planetary belt pulley is transmitted via a belt. The planet carrier and the planetary belt pulley are driven at different rotational speeds. According to the invention, the planet carrier is held by a belt tensioning unit rotating with the planet carrier. A distance of the planet carrier from a rotor axis can be changed via the belt tensioning unit in order to adjust the belt tension of the belt.

The invention relates to a flow-through centrifuge which is used, for example, for biotechnical applications, in particular as a blood centrifuge. A driving arrangement and/or transmission arrangement of the flow-through centrifuge comprises a planetary gearset. In the planetary gearset, at least one planetary belt pulley is rotatably supported on a rotating planet carrier. A torque of the planetary belt pulley is transmitted via a belt. The planet carrier and the planetary belt pulley are driven at different rotational speeds. According to the invention, the planet carrier is held by a belt tensioning unit rotating with the planet carrier. A distance of the planet carrier from a rotor axis can be changed via the belt tensioning unit in order to adjust the belt tension of the belt.