Jerry F Potter

US Patent:

6764762, Jul 20, 2004

Filed:

Sep 10, 2002

Appl. No.:

10/238748

Inventors:

Paul Douglas Seemuth - Chattanooga TN
Jerry Fuller Potter - Seaford DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

D02G 300

US Classification:

428364, 428375, 428378, 428394, 811551, 81156

Abstract:

The present invention relates to the application of lubricant to fluoropolymer yarn which enables the yarn to be drawn at a high draw ratio and is removable by scouring, the lubricant being thermally stable at a temperature of at least 120Â C. , and being removable from the yarn by scouring and comprising oil and surfactant and/or wetting agent to enable the lubricant to spread over the surface of the yarn upon application to the yarn, the lubricant comprising oil such as a C6-C20 aliphatic acid ester of a polyol and a surfactant and/or wetting agent.

US Patent:

41202228, Oct 17, 1978

Filed:

Sep 16, 1977

Appl. No.:

5/833895

Inventors:

Jerry Fuller Potter - Seaford DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

D01G 104

US Classification:

83 99

Abstract:

A modification to a reel type staple cutter wherein a hollow drive shaft for the reel communicates with internal passageways in the top plate of the cutter reel. Holes are formed through the top plate at locations between adjacent cutter blade assemblies. Air fed through the shaft is continuously jetted through the holes against advancing wads of cut staple to strip off staple.

US Patent:

51105179, May 5, 1992

Filed:

Jun 1, 1990

Appl. No.:

7/531654

Inventors:

Craig R. Lukhard - Newark DE
Jerry F. Potter - Seaford DE
Maurice C. Todd - Chadds Ford PA

Assignee:

E. I. DuPont de Nemours and Company - Wilmington DE

International Classification:

D02J 112

US Classification:

264 401

Abstract:

A method and apparatus for deregistering drawn crimped nylon multifilament tow includes the steps of stretching the tow under constant controlled tension at a temperature below the glass transition temperature of the nylon. The apparatus includes means for sensing the tension of the tow between the feed and draw sections of a stretching device and producing a signal representative of the tension sensed and a controller for changing the speed of the draw section actuated by said signal.

US Patent:

52196208, Jun 15, 1993

Filed:

Jul 25, 1991

Appl. No.:

7/735579

Inventors:

Jerry F. Potter - Seaford DE
W. Lamar Brown - Ringgold GA

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

B05D 126

US Classification:

4274342

Abstract:

The invention involves a process for foam treating pile fabrics, especially carpets, by applying a foam composition through the backing of the fabric. The fabric is wrapped partially around the foam applicator at a wrap angle of at least 60 degrees, while the facing of the fabric is free of pressure. A foam applicator is also taught.

US Patent:

43004229, Nov 17, 1981

Filed:

May 27, 1980

Appl. No.:

6/153213

Inventors:

Jerry F. Potter - Seaford DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

D01G 104

US Classification:

83 99

Abstract:

A modification to a reel type staple cutter that includes a compartmentalized assembly located below the cutter reel, each compartment forms an isolated cutting zone which reduces the opportunity for falling tufts of cut staple to mix and intermingle to form clumps which are difficult to open. The curved top plate of each compartment provides a downward force vector which assists gravitational forces and injected air to overcome centrifugal and adhesive forces tending to prevent staple from falling. Plates and baffles attached to a stationary shell located beneath the cutter reel split the cut fibers into discrete tufts despite the cohesive nature of the product and promote flow down and from each compartment.

US Patent:

51878453, Feb 23, 1993

Filed:

Apr 11, 1991

Appl. No.:

7/682331

Inventors:

Joseph J. Duffy - Newark DE
Jerry F. Potter - Seaford DE
Elwood A. Roth - Seaford DE
Kalika R. Samant - Seaford DE
Maurice C. Todd - Chadds Ford PA

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

D02G 112
D02G 100
D01G 3700

US Classification:

28267

Abstract:

A method of producing crimped tow by continuously feeding a tow against an adjustable counter pressure means; the tow is maintained at an average predetermined thickness and steam enters the chamber and is exhausted from the chamber in a manner to provide uniform heating of the tow to provide a fiber that is uniformly annealed as determined by measuring light reflectance for yarn dyed with a structural sensitive Milling Blue "B" dye or shrinkage uniformity determined by thermal analysis.

US Patent:

56197802, Apr 15, 1997

Filed:

Sep 7, 1995

Appl. No.:

8/524684

Inventors:

Jerry F. Potter - Seaford DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

D02G 112

US Classification:

28256

Abstract:

A method for detecting a yarn break between the cooling drum and the windup in a yarn bulking process and containing the broken end to prevent the broken end from interrupting adjacent threadlines. The yarn, when broken, is contained in individual tubes extending along the yarn path to prevent the yarn from interrupting adjacent yarn lines. The yarn is recaptured from the tube by a jet moveable into and out of engagement with the tube.

US Patent:

54221803, Jun 6, 1995

Filed:

Aug 10, 1993

Appl. No.:

8/102323

Inventors:

Craig R. Lukhard - Newark DE
Jerry F. Potter - Seaford DE
Maurice C. Todd - Chadds Ford PA

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

D02G 302
D02G 324

US Classification:

428362

Abstract:

A method and apparatus for deregistering drawn crimped nylon multifilament tow includes the steps of stretching the tow under constant controlled tension at a temperature below the glass transition temperature of the nylon. The apparatus includes means for sensing the tension of the tow between the feed and draw sections of a stretching device and producing a signal representative of the tension sensed and a controller for changing the speed of the draw section actuated by said signal.