RICHARD BRUCE WILLIAMS
Pilots at Ocean Pt Dr, Wilmington, NC

5632797, May 27, 1997

Dec 30, 1994

8/368318

Richard R. Williams - Wilmington NC

Corning Incorporated - Corning NY

C03B 37014

65413

A vaporizer for halide-free, silicon-containing liquid reactants used in producing preforms is provided. The vaporizer includes a heated, vertically-oriented expansion chamber (20) and a vertical hollow shaft (42) which extends into the chamber and has a plurality of orifices (45) at its upper end (44). Preheated reactant is supplied to the vertical shaft (42) at an elevated pressure and is sprayed onto the chamber's heated wall (22) by the orifices (45). A portion of the liquid reactant vaporizes upon entering the internal volume (24) of the chamber (20) due to the pressure drop between the inside of the shaft and the inside of the chamber. The remainder of the liquid reactant vaporizes by being heated through contact with the chamber's wall (22). Higher molecular weight species present in the raw material or generated by the vaporization process are collected in the bottom portion of the chamber where they can be periodically removed.

5938853, Aug 17, 1999

Jan 8, 1997

8/780770

Richard R. Williams - Wilmington NC

Corning Incorporated - Corning NY

C23C 1644, B01D 122

118726

A vaporizer for halide-free, silicon-containing liquid reactants used in producing preforms is provided. The vaporizer includes a heated, vertically-oriented expansion chamber (20) and a vertical hollow shaft (42) which extends into the chamber and has a plurality of orifices (45) at its upper end (44). Preheated reactant is supplied to the vertical shaft (42) at an elevated pressure and is sprayed onto the chamber's heated wall (22) by the orifices (45). A portion of the liquid reactant vaporizes upon entering the internal volume (24) of the chamber (20) due to the pressure drop between the inside of the shaft and the inside of the chamber. The remainder of the liquid reactant vaporizes by being heated through contact with the chamber's wall (22). Higher molecular weight species present in the raw material or generated by the vaporization process are collected in the bottom portion of the chamber where they can be periodically removed.

5974837, Nov 2, 1999

Mar 7, 1996

8/612469

John S. Abbott - Elmira NY
Richard R. Williams - Wilmington NC

Corning Incorporated - Corning NY

C03C 2502, C03C 1702, B05C 312

65432

In the process of drawing optical fibers, a protective plastic coating is applied to the fiber by applying a curable liquid coating material thereto and the subsequently curing the liquid coating to a protective plastic layer. At high fiber draw speeds, air entrained with the fiber enters the liquid coating material and causes bubbles in the cured coating. The incidence of bubbles in the coating is reduced by replacing air adjacent the fiber surface with helium.

5366527, Nov 22, 1994

Apr 5, 1993

8/043448

Lynn G. Amos - Wilmington NC
Paul A. Chludzinski - Wilmington NC
Heidi B. Leoni - Painted Post NY
Johnnie E. Watson - Hampstead NC
Richard R. Williams - Wilmington NC

Corning Incorporated - Corning NY

C03B 37025

65382

A method and apparatus is provided for controlling the diameter of a coated optical waveguide fiber. The viscosity profile of the coating material is controlled by adjusting the temperature of a portion of the coating assembly based on a measurement of the diameter of the coated fiber. By controlling the viscosity profile of the coating material, the amount of coating applied to the fiber is controlled,, thereby determining the diameter of the coated fiber.