Company Filing History:
Years Active: 1994-1998
Title: Michael Charles Davis: Innovator in Fibrous Web Technology
Introduction
Michael Charles Davis is a notable inventor based in Richmond, VA (US). He has made significant contributions to the field of fibrous web technology, holding 2 patents that showcase his innovative spirit and technical expertise.
Latest Patents
Davis's latest patents include a "Spinneret with slotted outlet" and an "Electrostatic field enhancing process and apparatus for improved web." The spinneret patent describes a flash spin pack designed for a flash-spinning apparatus. This invention features a spin mixture inlet that connects to a spin mixture passage, discharging through a spinning orifice into a slot defined by two opposing faces of the spin pack body. The slot dimensions range from 0.25 mm to 7 mm wide near the spinning orifice outlet and from 0.25 mm to 10 mm at the slot outlet, with a distance of 1.5 mm to 40 mm from the orifice outlet to the slot outlet. The spin pack can accommodate five or more spinning orifices, each discharging into a uniquely configured slot.
The second patent focuses on a process and apparatus that enhance web pinning and uniformity during fibrous web formation. This improvement is achieved by imposing an auxiliary electrostatic field above the fibrous web as it is pinned along a moving collection surface. An electrostatic field enhancing plate is strategically positioned above the web and collection surface, downstream of the initial laydown position. This plate increases the electrostatic field in the region above the collection surface, thereby enhancing web pinning forces. When applied to a flash-spinning process using trifluorochloromethane as the fluid medium, the auxiliary electrostatic field can range from about 2 to 80 kV/cm, with a preferred range of 10 to 60 kV/cm.
Career Highlights
Davis is currently employed at E.I. DuPont De Nemours and Company, where he continues to innovate and contribute to advancements in his field. His work has had a significant impact on the efficiency and effectiveness of fibrous web technologies.
Collaborations
Throughout his career, Davis has collaborated with notable colleagues, including Michael Allen Bryner and Don Mayo Coates. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion