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US 7,155,848 B2Granted
Apparatus for a scrolling sign
Assignee501413 Ontario Limited
InventorsBill David O'Malley, Abram Teichroeb Klassen
Life of this patent
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Abstract
A scrolling sign apparatus is disclosed. The apparatus includes a web having a number of signs connected in a loop. The web includes a bead along each longitudinal edge thereof. The apparatus includes a housing which has a window for displaying the signs. The web is wound on a number of rollers located in the housing which advance the web through the window. Each roller has two circumferential grooves located near the ends of the roller. The grooves engage the beads along the edges of the web.
Claims6
An apparatus comprising:
- a) a plurality of sign sheets connected in an endless loop to form a web, wherein a leading edge of each of said sign sheets is connected to a trailing edge of an adjacent one of said sign sheets;
- b) a housing, said housing defining a window for displaying said plurality of sign sheets;
- c) a plurality of rollers located in said housing, said rollers being adapted for advancing said web through said window;
- d) a flexible cover covering said window, said cover being adapted to permit viewing of said sign sheets therethrough;
- said cover and said housing defining an enclosure, said web being located in said enclosure;
- and
- e) a fan adapted to produce an internal pressure in said enclosure, wherein said internal pressure is sufficient to urge said cover away from said web.
4 more elements
Dependencies are inferred from the claim text.