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
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