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Class 74/572.4 - Balancing for drum, e.g., washing machine or arm-type structure, etc., centrifuge, etc.


Subclass of Class 74 - Machine element or mechanism
Definition: Subject matter under subclass entitled ELEMENTS comprising
No. of patents: 26
Last issue date: 10/12/2010


NumberTitleIssue Date
7810410Drum and washing machine or dryer using the same
The present invention relates to a drum rotatable provided in a washing machine or a dryer to dry laundry. A drum for a washing machine or a dryer includes an operable drum door provided at a circumferential surface of the drum; a balance weight provided at the circ...
10/12/2010
7435211Ball balancer for vertical rotor and centrifuge
Disclosed herein are a balancer which is provided with a curved portion at a balancing space so that movement of balls is accelerated at the moment a rotational speed of a rotor exceeds a resonant speed, thereby stabilizing the rotation of the rotor without vibratio...
10/14/2008
7393164Dynamic balancing ring for cutter holder
The present invention provides a dynamic balancing ring for a cutter holder for balancing the cutter holder. The dynamic balancing ring includes a circle, plural fixing elements and an adjusting element. The plural fixing elements are used for fixing the circle on t...
07/01/2008
7305905Rotatable member with an annular groove for dynamic balancing during rotation
A rotatable member is adapted for dynamic balancing by the addition of balancing weights in the form of high speed projectiles fired at the member during rotation in timed relationship with the rotation of the member so as to impact the member at specific circumaxia...
12/11/2007
7297097Lift type weight measuring centrifuge
Disclosed is a lift type weight measuring centrifuge which is able to measure the weight of a measurement object after spatially isolating the measurement object. The centrifuge includes an upper sensing plate to move upwards, and a weight sensing mechanism provided...
11/20/2007
7285085Automatic balancing rotor for centrifuge
An automatic balancing rotor for a centrifuge which compensates for imbalance of a centrifugal force occurring due to a weight difference of samples. The automatic balancing rotor includes a plurality of rotating arms spaced at regular angular intervals, with a plur...
10/23/2007
7199971Balancing a rotatable body in multiple planes using invertible balancing plugs
Multiple balancing plugs (114) preferably have a common length and a common offset center of gravity (130) in the length dimension for providing dual plane balancing of a rotatable body (100). The rotatable body (100) includes a plurality...
04/03/2007
7175011Free-wheel with a free-wheel outer rim covered with fiber-reinforced plastic
The invention relates to a free-wheel, in particular a pinch roller free-wheel or a pinch body free-wheel, comprising relatively-rotating elements arranged one within the other on a common axis, which form a gap, in which pinch elements, in particular pinch rollers ...
02/13/2007
7115090Method and device for pretreatment of samples by centrifuging
The invention concerns a method comprising detecting tubes inside carriers (P), detecting an expected imbalance of the centrifuge (CE) and, when said detection reveals the presence of such an imbalance owing to the presence of an insufficient number of carriers (P) ...
10/03/2006
7025714Process to balance a rotatable plate of a centrifuge and centrifuge using the process
Centrifuge includes a plate, a detector for the position of the plate, a monitoring and control unit, to turn the plate and to stop it in predetermined angular positions; characterized by several balancing containers, a centrifugal detector, a device for providing a...
04/11/2006
6681430Method and system for mechanizing simultaneous multi-actuator actions applied to dynamic balancing
A method and system for dynamically balancing a rotating system based on a plurality of simultaneous and discrete control actions that place mass at predetermined locations within the rotating system so as to achieve balance is disclosed. A balance contro...
01/27/2004
6662682Dynamic balancing application mass placement
Methods and systems for distributing mass across a limited number of receiving receptacles associated with a rotating device or rotating system in order to affect a balance control action for dynamically balancing the rotating device or rotating system ar...
12/16/2003
6638203Centrifuge rotor shaft vertical displacement restriction device with angular deflection capability
In a centrifuge comprising a drive shaft assembly, a diaphragm disposed about the drive shaft assembly reduces noise and vibration. The diaphragm permits the drive shaft assembly to pivot off a vertical axis while substantially limiting horizontal displac...
10/28/2003
5509284Washing machine transmission
A transmission for a washing machine which uses an off center gear in combination with a rack and pinion mechanism, a brake clutch, and a drive clutch to provide the agitation and the high speed spin of the washing machine. The input shaft is in line with...
04/23/1996
5080789Hydroextractor for textile pieces with shaft-driven motor and support rollers
A hydroextractor which is mainly useful to carry out the industrial dedusting, rinsing and centrifuging of rugs, comprises a hollow cylindrical body (2) having holes in its surface. The cylindrical body is rotated around its longitudinal axis bya drive mo...
01/14/1992
4860610Wound rotor element and centrifuge fabricated therefrom
A centrifuge rotor is fabricated of a stacked plurality of tiers where each tier is formed from a stacked array of wound arms. Each arm is formed from an array of layered turns of anisotropic fibers having parallel side portions connected through curved e...
08/29/1989
4856303Agitator thrust spacer for automatic washer
A thrust spacer having resilient, upwardly angled tabs is provided to act as a variable spacer within a two-piece agitator, between an upper agitator portion and a lower agitator portion to prevent relative vertical movement between the two portions while...
08/15/1989
4837882Flotation controlled drive for an automatic washer
The present invention concerns a spin basket clutching device which includes a flotation device which locks the spin basket to an agitator in response to the level of wash liquid in the basket. During a wash step, the basket will be full of liquid and the...
06/13/1989
4834046Centrifugal weight support
A disc-shaped centrifugal weight support (2) for a centrifugal force governor having recesses (3) for accepting knife-edge supported centrifugal weights (4) maintained in an assembled relationship by abutment means such as a ring (7) to form a single-unit...
05/30/1989
4817453Fiber reinforced centrifuge rotor
A centrifuge rotor includes a central disc formed of a plurality of laminates each having an array of fibers arranged at predetermined annular orientations with respect to the axes of the fibers in the next vertically adjacent laminate. A rim having a hig...
04/04/1989
4568325Breakaway base for an ultracentrifuge rotor
A breakaway base for use with an ultracentrifuge rotor wherein the base is designed to fracture when the rotor is above a specified speed so that the rotor will disengage from the drive spindle of the centrifuge. The base has cutout areas to establish a h...
02/04/1986
4388841Load balancing device
A load balancing device for rotating apparatus such as washing machines and vehicle tires. In one embodiment the present invention consists of an inner conduit defining an interior raceway which contains a high density fluid mass which shifts to oppose lo...
06/21/1983
4250724Suspension system for tub assembly in clothes washing machine
A suspension system for a washing machine including a tub assembly having an outer stationary tub and an inner clothes receiving tub mounted for rotation on a central shaft extending downwardly through the lower wall of the stationary tub, comprises a fir...
02/17/1981
4096988Method and an apparatus for the dynamic balancing of rotating bodies, particularly for centrifuges
A method and apparatus for the dynamic balancing of a centrifuge during rotation in which vibration, amplitude, frequency and phrase are sensed within at least two planes and vibration signals produced. The vibration signals are then processed and convert...
06/27/1978
3990633Centrifuge apparatus
In a centrifuge including a centrifuge rotor and a drive shaft for spinning the rotor at selected rotational speeds, a safety device adapted to prevent the rotor from attaining a rotational speed likely to cause the rotor to explode with a force that coul...
11/09/1976
3961745Centrifuge apparatus
In a centrifuge including a centrifuge rotor and a drive shaft for spinning the rotor at selected rotational speeds, a safety device adapted to prevent the rotor from attaining a rotational speed likely to cause the rotor to explode with a force that coul...
06/08/1976
 
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