Patent ID: 9243907
Filing Date: 2016-01-26
CPC Classification: G01C

Claim Text:
1. A level for determining the orientation of a structure comprising: (a) a body including first and second vial chambers, each having a threaded opening; (b) a first bubble vial disposed within said first vial chamber; (c) a second bubble vial disposed within said second vial chamber; (d) a first threaded connector receivable within said threaded opening of said first vial chamber for movement from a first position to a second position in engagement with said first bubble vial to secure said first bubble vial within said first vial chamber; (e) a second threaded connector receivable within said threaded opening of said second vial chamber for movement from a first position to a second position in engagement with said second bubble vial to secure said second bubble vial within said second vial chamber; and (f) a connector mechanism connected to said body for releasably interconnecting said body with the structure, said connector mechanism comprising a self contained ball and spring device and including a screw having a head portion and a threaded shank portion.