US 5066430
PROCESS FOR CENTRIFUGALLY SPINNING PITCH CARBON FIBERS
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY, A CORP. OF DE.
Filed
Mar 20, 1989
Granted
Nov 19, 1991
Location
WILMINGTON DE US
Abstract
Mesophase pitch centrifugally spun over a lip of the centrifugal rotor can be protected from coke and tar formation by conveying the molten pitch to the rotor's lip through channels within the rotor.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Dec 19, 1990
Rescinded
Feb 6, 1991
Duration
1 month
Inventor
- 1ABRAHAM MATTHEWS
Record Details
- Patent number
- US 5066430
- Application
- 07326554
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
E. I. DU PONT DE NEMOURS AND COMPANY, A CORP. OF DE.Back to patent indexSource: USPTO 35 USC §181 secrecy order records