Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Reexamination Certificate
2011-03-29
2011-03-29
Bennett, G. Bradley (Department: 2841)
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
C033S347000, C033S451000, C033SDIG010
Reexamination Certificate
active
07913406
ABSTRACT:
A hands-free measuring instrument is disclosed. The disclosed instrument includes an upright member extending perpendicularly from a base member. At least one magnet is affixed to the instrument to facilitate the mounting thereof on a ferrous workpiece. The disclosed instrument includes at least one bubble level disposed thereupon. Graduations may be provided on the instrument to facilitate measurement of linear distances. Embodiments are provided wherein a spring-loaded spike is disposed within the instrument that is adapted to secure the measuring instrument to a workpiece which may be non-ferrous. The spike assembly may be configured to work with commonly used building materials, e.g., wood, drywall, masonry, and sheet metal surfaces.
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Bennett G. Bradley
Carter DeLuca Farrell & Schmidt LLP
Salemo Russell S.
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