Richard J Shields

US Patent:

D388324, Jun 26, 1990

Filed:

Apr 6, 1987

Appl. No.:

7/034578

Inventors:

Richard A. Shields - Huntington Beach CA
John D. Rust - Huntington Beach CA

Assignee:

Beckman Industrial Corporation - Brea CA

US Classification:

D10 78

US Patent:

49113356, Mar 27, 1990

Filed:

Jun 23, 1988

Appl. No.:

7/210383

Inventors:

Kenneth F. Stofle - Whittier CA
Robert Milich - Long Beach CA
Richard Shields - Huntington Beach CA
William L. Blowers - Newhall CA
Walter Kovacs - Downey CA

Assignee:

White Consolidated Industries, Inc. - Cleveland OH

International Classification:

B67D 506

US Classification:

222192

Abstract:

A combined air gap and dispensing device is adapted to be mounted on a sink, and comprises an internal air gap between inlet and outlet waste tubes. A liquid carrying pipe, such as a hot water pipe, also extends through the device to a faucet for being dispensed. A pair of fiber optic cables have exposed ends at the upper end of the device, and are coupled to a control system for valving liquid to the dispensing pipe. The control circuit may include a light source directed to one of the fiber optic cables, a photo sensor connected to the fiber optic cable to receive reflected light, and amplifying and demodulating circuitry, as well as a logic circuit responsive to determined conditions at the upper ends of the fiber optic cables for controlling the flow of liquid to the dispensing pipe. A pneumatic tube and pneumatic actuator may be provided instead of the optic cables and associated optic devices.