Abstract: An adapter for taking up a sample container and for use in a laboratory centrifuge rotor, the adapter including a closed end, an opened end and closure assembly that releasably seals the opened end. The closed end and the opened end can be of a certain diameter. The adapter can also be a certain shape. The closure assembly can also include a handle, flange, a hold down ring, a sealing ring and bottom support for the sealing ring, hold down ring, flange and handle.

Abstract: An adapter for taking up a sample container and for use in a laboratory centrifuge rotor, the adapter including a closed end, an opened end and closure assembly that releasably seals the opened end. The closed end and the opened end can be of a certain diameter. The adapter can also be a certain shape. The closure assembly can also include a handle, flange, a hold down ring, a sealing ring and bottom support for the sealing ring, hold down ring, flange and handle.

Abstract: A centrifuge sample jar configured to maximize processed sediment accessibility and minimize leakage.

Abstract: A centrifuge sample jar configured to maximize processed sediment accessibility and minimize leakage.

Abstract: A bucket for use in a swinging bucket centrifuge rotor includes a cylindrical body having a pair of planar abutments formed thereon. The abutments are diametrically disposed on the body with respect to the axis thereof. A slot is formed between a portion of each abutment and the body of the bucket. Each abutment has a first groove that extends generally parallel to the axis of the body and a second groove that extends generally perpendicular to the axis of the body. The first and second grooves communicate with the slot and together with the slot cooperate to define a resilient spring element on each abutment. A bottom support surface on each abutment is generally cylindrical in shape and has an axis of generation that lies along the axis of the body, whereby a portion of each bottom support surface lies on opposite sides of the axis of the body.

Abstract: An energy monitoring arrangement that is operatively associated with a centrifuge instrument monitors the magnitude of applied accelerating energy that is used to accelerate a rotor and to interrupt the continued application of accelerating energy if the magnitude of the applied accelerating energy exceeds a predetermined reference energy value. Preferably, the net applied accelerated energy to the rotor is monitored and used in the comparison with the energy reference. The invention may also be used in a predictive manner to provide, early in the centrifugation run, an indication of the energy of a rotor at an operator-ordered set velocity.

Abstract: A swinging bucket centrifuge rotor comprises a body that has a reference plane that extends generally perpendicular to a vertically extending axis of rotation. The body has at least one pair of confronting planar sidewalls each of which has a trunnion pin mounted thereon. Each trunnion pin has an axis therethrough that extends generally perpendicularly to the planar sidewall on which the pin is mounted. Each sidewall further has a generally cylindrical swinging bucket support surface thereon. Each cylindrical support surface has an axis of generation that lies in the reference plane in parallel relationship to the axis of the trunnion pin. Thus, a portion of each cylindrical support surface lies above and below the reference plane.

Abstract: The present invention relates to an applied load accepting band for a centrifuge rotor that is configured such that, while rotating, the applied loads on the band are balanced by the tension in the band, so that during rotation the band is subjected only to a tensile force.

Abstract: An applied load accepting band for a centrifuge rotor is configured such that while rotating, the applied loads on the band are balanced by the tension in the band, so that during rotation the band is subjected only to a tensile stress.

Abstract: A centrifuge tube adapter for supporting a closed tube in a cavity of a vertical angle centrifuge rotor includes an inboard and an outboard adapter segment. A hinge connects the segments and supports relative pivotal movement of one segment with respect to the other. The hinge comprises a pair of axles formed at the lower end of one segment and a pair of trunnions formed at a corresponding location on the other segment. The inboard segment has a flange and the outboard segment has a channel therein sized to receive the flange. The flange has serrations thereon.

Abstract: An adapter for a centrifuge tube comprises two segments that may be hinged along a hinge axis that extends perpendicular to the axis of the adapter.

Abstract: A clutch assembly for a centrifuge rotor includes at least one pair of complementary clutch elements each operatively associated with the rotor. Each element in the pair is preloaded into contact with the drive shaft. A torque applied to the shaft in either a first or second direction about an axis of rotation is transmitted from the drive shaft to the rotor through one of the clutch elements.

Abstract: A tube for use in a pelleting centrifuge rotor is characterized in first aspect by a first, acute, corner and a second, obtuse, corner defined in the lowermost pelleting region thereof. The corner defined by the acute angle lies a greater axial distance from the mouth of the tube than the corner defined by the obtuse angle. In a second aspect the tube the interior of the tube has a constricted region with a guide adjacent thereto. The guide channel is sized to accept a supernatant removal implement.

Abstract: An adapter for a centrifuge tube comprises two adapter segments, each of which has an exterior surface and a mating surface thereon. Each segment has a pair of indentations in the mating surface. When the segments are joined along their mating surfaces the indentations cooperate to define a pair of recesses therein. Each recess so defined is configured to surround totally a centrifuge tube disposed therein. Each recess has an axis extending therethrough, with the axes of the recesses being collinear. The collinear axes of the recesses are aligned parallel to the axis of rotation of the rotor, and preferably also align collinearly with the axis of the rotor cavity in which the adapter is disposed. Each adapter segment is fabricated of a material that has sufficient strength to withstand the vertical forces created by the pressure of a liquid under centrifugation.

Abstract: An adapter having a body and a cooperating cover with a seal therebetween is characterized by a stop surface provided on the exterior surface the body. The body and the cover are held together by a clamping bail that is either separate from or, more preferably, pivotally mounted to, the body. The bail is slidably movable over the body and the cover from an open to a clamping position. In the clamping position the bail abuts against the stop surface with the major axis of the bail being most preferably collinear with the major axis of the adapter. With the bail in the clamping position the cover is held to the body in a manner that compresses the seal therebetween. The bail is formed of a material having sufficient strength to withstand a vertical force created by the pressure of a liquid carried in the tube under centrifugation.

Abstract: A mounting apparatus in which the vertical, lateral and torsional stiffness of the mounting apparatus are greater than the pivot stiffness. The greater stiffnesses are produced either by loading columns in tension or compression or by bending a rectangular column along its narrow, higher moment of inertia face.

Abstract: A transmitter and associated receiver interrogate the surface of a rotor at one or more radial positions from the center of rotation using emitted pulses of energy. Signature signals representative of the distance traveled by the pulses collectively form a signature signal pattern which is compared to a reference library of such signature signal patterns. Each pattern in the library represents one of a predetermined plurality of rotors. The comparison of the detected pattern with the patterns in the library representative of the identity of the interrogated rotor.

Abstract: A centrifugal analysis device in which film capillaries communicate with peripheral cells, with a hydrophilic capillary providing the cell inlet and a hydrophobic capillary providing the cell outlet.

Abstract: A support arrangement for a temperature sensor in a centrifuge is characterized by a generally tubular member coaxially disposed about a portion of the drive shaft. A temperature sensor is positioned on the support arrangement so that it extends into the drive recess of a rotor and there confronts the body of the rotor in a temperature sensing relationship.

Abstract: A removable seal assembly for a centrifuge door includes a seal support plate slidably received in guide rails mounted to the undersurface of the door. The plate has a central opening lined with an annular seal support element. A flange secures the plate to the edge of the door. The support plate is slidably removable from the guide rails.