Extendable level
OwnerJoseph Pustayinventor
Life of this patent
Estimating the term…
Abstract
A new level having a very rigid and rugged construction in the form of solid blocks between four track members that guide the relative movement of the level frame and level extension. The track members and extension provide planar surfaces the length of the extended level on the top and bottom. The extension includes handgrips to assist in both extending and using the level. As an option, a rotatable spirit vial is located in the extension. The rotatable spirit vial may be set for any angular degree between the horizontal and the vertical. Thus, angular pitches may be accurately determined with as much ease as the horizontal or vertical.
Claims4
An extendable level comprising a frame and an extension in telescopic engagement with the frame, the frame including a plurality of track members and a block permanently affixed to the track members and the extension including a solid piece and a plurality of plates affixed to the solid piece, said solid piece being substantially wider than said plates,
- a plurality of parallel channels formed in the solid piece adjacent and beyond the plates, said channels extending beneath at least portions of said plates,
- and said track members shaped to partially fit into said channels and over the solid piece with portions of said track members extending beneath portions of said plates.
Dependencies are inferred from the claim text.