Visual display panel

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5321417
SERIAL NO

07750963

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A light transmitting, visual display panel for use as a sign or message board and comprised of a plurality of closely adjacent, rectangular modules, each of which includes a closed, vertically disposed housing having top, bottom, side and back walls, and a front wall comprised of a plurality of closely adjacent, interchangeable, rectangular, 3-dimensional, light refracting filtering lenses. The lenses are removably secured in the housing. A vertical array of individual light sources is disposed within the housing behind the lenses and dividers behind the lenses separate the light sources. Each housing includes at least one pressurizing cooling fan and narrow, slot-like air exhaust ducts are provided between adjacent lenses.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
DAKTRONICS INC A CORP OF SOUTH DAKOTABROOKINGS SOUTH DAKOTA 57006-0128

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Erickson, Troy A Brookings, SD 2 72
Sitzema, Ronald L Charlevoix, MI 6 353
Voelzke, Vernon P Brookings, SD 5 128

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation