Line marking device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 23, 1997
Grant Date -
N/A
app pub date -
Jul 12, 1995
filing date -
Jul 12, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A line marking device includes an elongated body which mounts a marking filament that is loaded with marking powder. When the filament is snapped against a surface a portion of the powder is deposited on that surface along a well defined line. The body also mounts a protractor and spirit levels that are used to locate or set the device in a predetermined position prior to snapping the marking filament against the surface to be marked. The marking filament extends through a shuttle chamber that contains a supply of marking powder. That shuttle is moved back and forth on the body to recharge the marking filament with marking powder. In a second embodiment of this invention the marking filament is pressed rather than snapped against the surface to be marked. In a third embodiment of this invention a writing instrument mounted on the body of the device is drawn along the length of the body to draw a line on a receiving surface adjacent the body. The writing instrument is moved by a puller filament that is windable about a spring loaded take-up reel. A holding detent of a ratchet normally acts to isolate the puller filament from operating forces that move the writing instrument.
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Cited Art Landscape
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