Allen R Davidson

US Patent:

45636176, Jan 7, 1986

Filed:

Jan 10, 1983

Appl. No.:

6/456817

Inventors:

Allen S. Davidson - Bellevue WA

International Classification:

H05B 3700

US Classification:

315312

Abstract:

A bright, economical, flat panel television/display is fabricated by laser welding incandescent metal particles together to form light emitting micro-beads, the ends of which are simultaneously welded to driving electrodes. The small physical mass and dimensions of each bead permit it to be fired to an incandescent state at high rates, becoming a controllable, bright, point source of light suitable as a picture element to create moving images. The beads are suspended between a heat resistant substrate and faceplate, both of which contain depressions proximate to each bead to provide thermal spacing and optical and thermal reflectivity to direct visible light out of the panel, and heat back to the bead, conserving power. Color filters provide full color image display in a system operating at approximately five volts, and which can be built to any size and shape. Three dimensional display capability is inherent when a plurality of transparent display panels are laminated.

US Patent:

42854776, Aug 25, 1981

Filed:

Apr 30, 1979

Appl. No.:

6/034552

Inventors:

Terrence L. Oxendahl - Phoenix AZ
Allen E. Davidson - Glendale AZ

International Classification:

B65H 7540

US Classification:

242 96

Abstract:

A construction line reel has a cord bearing head upon which construction line is wound freely rotatably disposed on a single handle. The cord bearing head is elongated in the direction of its axis of rotation to effect safe and convenient one-handed dispensing of construction line, enabling construction workers working at unsafe heights to focus maximum attention upon their safety while dispensing construction line.