Centrifuge model test apparatus

Details Centrifuge model test apparatus Centrifuge model test apparatus

1997-01-30

1998-06-16

Dougherty, Elizabeth L.

Measuring and testing

Instrument proving or calibrating

Centrifuge

738653, 494 20, G02L 2500

Patent

active

057673810

ABSTRACT:
A centrifuge model test apparatus is accommodated in a pit, and comprises a vertical rotary shaft, a rotary arm horizontally secured to the rotary shaft, a swing bucket suspended from and supported at a pin on the rotary arm and located near the end thereof so as to be movable in the radial direction of the rotary arm or fixed, and a drive unit for rotating the rotary shaft. As the drive unit is driven and the rotational speed of the rotary shaft increases, the swing bucket is raised together with a sample contained therein due to the centrifugal force with the pin as a center and is placed at a nearly horizontal position when a predetermined rotational speed is reached. A partitioning plate provided under the swing bucket is moved upwards at the time when the swing bucket is raised, and the volume and surface area of the space defined by the partitioning plate and the pit reduce, and the frictional force due to the resistance of the air decreases. This makes it possible to increase the radius of the rotary arm or the load weight on the sample without increasing the driving force. As the rotary arm is made of high damping and easily welded material, vibration caused by resonance can be reduced when the testing apparatus of the centrifuge model is operated with a vibration generating device installed in the testing apparatus.

REFERENCES:
patent: 2834541 (1958-05-01), Szent-gyorgyi et al.
patent: 3011333 (1961-12-01), Roth et al.
patent: 3420437 (1969-01-01), Blum et al.
patent: 3877634 (1975-04-01), Rohde et al.
patent: 3951334 (1976-04-01), Fleming et al.
patent: 4431423 (1984-02-01), Weyant, Jr.
patent: 4435169 (1984-03-01), Romanauskas
patent: 4446716 (1984-05-01), Fishman
patent: 5045047 (1991-09-01), Hutchins et al.

Affiliated with

Also associated with

Rating

Centrifuge model test apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Centrifuge model test apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Centrifuge model test apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1727696