LEVITATION DEVICE
Assignee
GEC-MARCONI LIMITED
Filed
Mar 6, 1997
Granted
Oct 3, 2000
Location
Cambridge MA (Draper Lab/MIT)
Abstract
An electromagnetic levitation device comprises an electromagnet (12) which is supported by a structure (13) and is arranged to attract armature (10) carried by another structure (11). Current to the electromagnet (12) is regulated by a control device (16) to ensure that the electromagnetic force exerted by the electromagnet (12) on the armature (10) is sufficient to cause and maintain levitation of the structures (11, 13) at a desired spacing (A in FIG. 1). A decoupling device (17) is arranged between the armature (10) and the structure (11) to accommodate a shock load (L) which reduces the flux gap (15) to zero and decouples the armature (10) from its support structure (11) by moving the stop (20) away from the structure (11). This significantly increases the extent of shock loading that can be tolerated before damage will be incurred.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Feb 5, 1998
Rescinded
Apr 14, 2000
Duration
2 years, 2 months
Inventor
- 1MALCOLM A. SWINBANKS
Sensitive facility: Cambridge MA (Draper Lab/MIT)
Record Details
- Patent number
- US 6127757
- Application
- 08804349
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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