Laser level
AssigneeBlack & Decker Inc.
InventorsJames D. Marshall, Oleksiy P. Sergyeyenko
Life of this patent
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Abstract
A laser level disposable on a reference surface includes a housing, a pendulum pivotably connected to the housing, a first laser diode disposed on the pendulum for emitting a first laser beam along a first path, a first lens disposed on the pendulum in the first path for converting the first laser beam into a first planar beam, the first planar beam forming a first line on the reference surface, a second laser diode disposed on the pendulum for emitting a second laser beam along a second path, and a second lens disposed on the pendulum in the second path for converting the second laser beam into a second planar beam, the second planar beam forming a second line on the reference surface, wherein the first and second lines are substantially perpendicular and non-intersecting.
Claims4
A laser level disposable on a first reference surface comprising:
- a housing;
- a pendulum pivotably connected to the housing;
- a lock mechanism for fixing the position of the pendulum relative to the housing, wherein said lock mechanism comprises a pivotable lock movable between a first position contacting the pendulum and a second position bypassing the pendulum;
- a first laser diode disposed on the pendulum for emitting a first laser beam along a first path;
- a first lens disposed on the pendulum in the first path for converting the first laser beam into a first planar beam, the first planar beam forming a first line on the first reference surface;
- a second laser diode disposed on the pendulum for emitting a second laser beam along a second path;
- and
- a second lens disposed on the pendulum in the second path for converting the second laser beam into a second planar beam, the second planar beam forming a second line on the first reference surface,
- wherein the first and second lines are substantially perpendicular and non-intersecting.
An angle measuring device disposable on a first reference surface comprising:
- a body having a scale thereon;
- a housing rotatably disposed on the body;
- a first laser diode disposed within the housing for emitting a first laser beam along a first path;
- and
- a first lens disposed within the housing in the first path for converting the first laser beam into a first planar beam, the first planar beam forming a first line on both the first reference surface and the scale.
Dependencies are inferred from the claim text.