Patent ID: 8359757
Filing Date: 2013-01-29
Classification: G01C

Abstract:
1. An illuminating carpenter level for providing levelness measurements on a work surface in low-light situations, said illuminating carpenter level comprising: a housing having front, rear and top surfaces; a plurality of vial windows located at said front and rear surfaces of said housing respectively; three sets of pairs of vials including one pair each of diagonal, horizontal and vertical vials located within said vial windows respectively, each of said pairs of diagonal, horizontal and vertical vials having an indicator bubble located therein; a slope indicator port located along said top surface and centered above said pair of horizontal vials; and, a numeric scale located along said top surface adjacent to said pair of horizontal vials; wherein said slope indicator port is a rectangular-shaped vertical aperture, wherein said slope indicator port enables a user to observe a relative position of said indicating bubble of said pair of horizontal vials and said numeric scale; wherein said numeric scale includes a plurality of graduated and numerically identified parallel lines representing a proportional slope over a specific length; wherein said vial windows comprises: a plurality of blackout panels permanently affixed between each of said pairs of diagonal, horizontal and vertical vials respectively; a plurality of lamps permanently mounted at end portions of each of said pairs of diagonal, horizontal and vertical vials respectively; and, a power supply system electrically coupled to said lamps; wherein said blackout panels enhance viewing of each of said pairs of diagonal, horizontal and vertical vials and said bubbles respectively; wherein said lamps are located completely exterior of said end portions of each of said pairs of diagonal, horizontal and vertical vials and remain completely exposed exterior thereof respectively; wherein said slope indicator port is spaced from each of said vial windows and located on a different plane therefrom respectively.