Ladder inclinometer

Description

FIG. 1 is a somewhat isometric view of a ladder inclinometer, showing my new design,

FIG. 2 is a view in front elevation,

FIG. 3 is a view in rear elevation;

FIG. 4 is a side view thereof;

FIG. 5 is a plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The flat interior surfaces of both levels, as well as the area above the curved level, are shaded to indicate contrast.

Referenced Cited
U.S. Patent Documents
D110646 July 1938 Petrochko
D190525 June 1961 Stroyman et al.
D195431 June 1963 Rieker
703306 June 1902 Roe
2810205 October 1957 Beck
2823461 February 1958 Schneider
3146529 September 1964 Chamberlin
3159924 December 1964 Lieblein
Patent History
Patent number: D249875
Type: Grant
Filed: Jul 23, 1976
Date of Patent: Oct 10, 1978
Inventors: Paul Bumbal (New York, NY), John V. Mizzi (Poughkeepsie, NY)
Primary Examiner: Susan J. Lucas
Attorney: Albert F. Kronman
Application Number: 5/708,107
Classifications
Current U.S. Class: Spirit Level (D10/69)
International Classification: D1004;