Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MECHANICAL TRANSLATOR WITH ULTRA LOW FRICTION FERROFLUID BEARINGS
Document Type and Number:
WIPO Patent Application WO2003071143
Kind Code:
A3
Abstract:
A mechanical translator includes at least one magnet (20) that is disposed on a substrate (22) to carry a load and has a magnetic axis generally transverse to the substrate, establishing a magnetic field with maximum external density adjacent the substrate. An ultra low friction interface is obtained with ferrofluid bearings (24), such as a light mineral oil medium mixed with isoparaffinic acid, which establish a critical angle of displacement from a horizontal static position of less than 1 degree, and preferably less than 10 minutes. A controller (46) of magnetic material can be placed on the opposite side of the substrate (32) to control the movement of the magnets (36).

Inventors:
CHEUNG JEFFREY T
Application Number:
PCT/US2003/005058
Publication Date:
December 18, 2003
Filing Date:
February 18, 2003
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ROCKWELL SCIENT LICENSING LLC (US)
International Classes:
C10M171/06; F16C29/02; F16C33/10; H01F1/44; H02K7/09; H02K49/10; (IPC1-7): F16C29/02; F16C33/10; H01F1/44; H02K49/10; C10M169/04
Foreign References:
GB1504872A1978-03-22
US4732706A1988-03-22
US5376862A1994-12-27
DE3841011A11990-06-07
US5358648A1994-10-25
US6254781B12001-07-03
US3554617A1971-01-12
Other References:
PATENT ABSTRACTS OF JAPAN vol. 013, no. 014 (M - 784) 13 January 1989 (1989-01-13)
PATENT ABSTRACTS OF JAPAN vol. 002, no. 044 (M - 013) 24 March 1978 (1978-03-24)
PATENT ABSTRACTS OF JAPAN vol. 007, no. 012 (M - 186) 19 January 1983 (1983-01-19)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: HOLDER FOR PLATE-SHAPED OR WEB-LIKE MATERIALS AND KIT FOR ONE SUCH HOLDER

Next Patent: ROLLING BEARING UNIT FOR WHEEL SUPPORT