Douglas E. Manning

Follow

Person

Knoxville, TN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for fabricating elliptical tubing
- Patent number 4,930,331
- Issue date Jun 5, 1990
- Douglas E. Manning
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Hydraulic press platon support
- Patent number 4,873,923
- Issue date Oct 17, 1989
- Douglas E. Manning
- B30 - PRESSES
Information Patent Grant
Attachable container riser
- Patent number 4,807,748
- Issue date Feb 28, 1989
- Phelps Engineering Company, Inc.
- Douglas E. Manning
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Anti-springback device for a container
- Patent number 4,777,874
- Issue date Oct 18, 1988
- Phelps Engineering Company, Inc.
- Douglas E. Manning
- B30 - PRESSES
Information Patent Grant
Floating container clamp for a compaction press
- Patent number 4,729,302
- Issue date Mar 8, 1988
- Douglas E. Manning
- B30 - PRESSES