Abstract: Wider overall angular viewing range for a spirit level achieved by provisioning spirit levels with a bubble vial module including a reflective surface wherein the reflective surface is manually pivotal about a pivot axis relative to a non-pivoted direct opposite viewing position such that a user can pivot the reflective surface towards himself. The system may include predetermined viewing positions.
Abstract: Wider overall angular viewing range for a spirit level achieved by provisioning spirit levels with a bubble vial module including a reflective surface wherein the reflective surface is manually pivotal about a pivot axis relative to a non-pivoted direct opposite viewing position such that a user can pivot the reflective surface towards himself. The system may include predetermined viewing positions.
Abstract: Spirit levels including a horizontal bubble vial with improved bubble visibility for assisting user readability for leveling purposes. The improved bubble visibility is achieved by coloring a bubble's uppermost surface as perceived by a user.
Type:
Grant
Filed:
December 13, 2009
Date of Patent:
July 17, 2012
Assignee:
Kapro Industries Ltd.
Inventors:
Rafi Ben-Josef, Shahar Harari, Yossi Palatshe, Tsvi Hershkovich
Abstract: A pocket level having a detachable line level whose bubble vial doubles as the pocket level's horizontal bubble vial, and an angle finder for enabling the determination of the angle of an inclined surface which includes a bubble vial housed in a wheel rim directly rotated by a user applying a rotation force to a portion of its exterior non-slip circumferential wheel rim surface preferably accessible via a throughgoing cutout formed in the pocket level's upper surface.