Folding ruler accessory
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 24, 1984
Grant Date -
N/A
app pub date -
Jul 20, 1981
filing date -
Jul 21, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An accessory is adapted to be attached to a foldable ruler to enhance the use of a foldable ruler in measuring the distance between two spaced-apart surfaces or elements. The accessory enhances accurate measurement and facilitates precise reading of such measurements. The accessory comprises a sheath and a bar. The sheath includes a lower channel, an upper passageway positioned above the channel, a window opening into the upper passageway, a hairline index provided adjacent to the window and spaced from one end of the sheath by a distance equal to the distance between the axis of the hinged connection of adjacent ruler sections and a free end of one of the sections which is adjacent to the axis. The bar comprises one portion without indicia and one portion having indicia or graduations thereon. A stud can be provided on the bar to engage a groove within the passageway in order to limit the slidable movement of the bar within the passageway. An adjustable screw can be provided in the lower channel in order to secure a section of the foldable ruler to the accessory.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully