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US 5,509,210 AGranted
Multiple position level
OwnerTimothy K. Murphyinventor
Life of this patent
Estimating the term…
Abstract
A level for determining the position of an object relative to the gravitational horizontal. The inventive device includes a rectangular frame having a pair of orthogonally oriented vial levels secured thereto which indicate an orientation of the device in a vertical position. A center web extends across the frame and supports a center level within the frame to indicate an orientation of the device in a horizontal position.
Claims4
A multiple position level comprising:
- a frame means for positioning against an object to be levelled, said frame means comprising a first elongated member spaced from and parallel to a second elongated member;
- a third elongated member extending orthogonally between first ends of said first and second elongated members;
- and a fourth elongated member extending orthogonally between second ends of said first and second elongated members, wherein said first member and said second member are both of a first length, and said third member and said fourth member are both of a second length, with said first length being substantially equal to said second length so as to define a substantially square shade of said frame means, said frame means further including a center web extending between said elongated members, said center web including a substantially planar member having a plurality of projecting corners which are fixedly secured to interior surfaces of said elongated members at a juncture of adjacent members, said center web including an aperture directed through said planar member thereof;
- a pair of vial levels secured in an orthogonal orientation relative to one another along interior surfaces of said frame means;
- and,
- a center level mounted to said frame means, said center level being mounted to said center web of said frame means, said center level comprising a seal extending about a perimeter of said aperture directed through said planar member of said center web;
- a pair of spaced glass plates coupled to said seal which cooperate to define an interior space;
- a fluid positioned within said interior space;
- and a gas bubble positioned within said interior space.
6 more elements
A multiple position level comprising:
- a frame means for positioning against an object to be levelled, said frame means comprising a first elongated member spaced from and parallel to a second elongated member;
- a third elongated member extending orthogonally between first ends of said first and second elongated members;
- a fourth elongated member extending orthogonally between second ends of said first and second elongated members, wherein said first member and said second member are both of a first length, and said third member and said fourth member are both of a second length, with said first length being substantially equal to said second length so as to define a substantially square shape of said frame means;
- and a center web extending between said elongated members, said center web including a substantially planar member having a plurality of projecting corners which are fixedly secured to interior surfaces of said elongated members at a juncture of adjacent members, said center level being mounted to said center web, said center web including an aperture directed through said planar member thereof;
- a pair of vial levels secured in an orthogonal orientation relative to one anon,her along interior surfaces of said frame means, with a first one of said vial levels being secured to said second elongated member of said frame means, and a second one of said vial levels being secured to said fourth elongated member of said frame means, each of said vial levels comprising a hollow glass cylinder having opposed ends;
- an end cap secured to each of said ends of said glass cylinder, said end caps each including a depending projection extending therefrom, said depending projection extending into a correspondingly shaped cavity formed within an interior surface of said frame means;
- a visible fluid positioned within said hollow glass cylinder;
- and an air bubble positioned within said hollow glass cylinder;
- and,
- a center level mounted to said frame means, said center level comprising a seal extending about a perimeter of said aperture directed through said planar member of said center web;
- a pair of spaced glass plates coupled to said seal which cooperate to define an interior space;
- a fluid positioned within said interior space;
- and a gas bubble positioned within said interior space.
10 more elements
A multiple position level comprising:
- a frame means for positioning against an object to be levelled, said frame means including a center web, said center web including a substantially planar member having a plurality of projecting members which are fixedly secured to interior surfaces of said frame, said center web including an aperture directed through said planar member thereof;
- and,
- a center level mounted to said frame means, said center level being mounted to said center web of said frame means, said center level comprising a seal extending about a perimeter of said aperture directed through said planar member of said center web;
- a pair of spaced glass plates coupled to said seal which cooperate to define an interior space;
- a fluid positioned within said interior space;
- and a gas bubble positioned within said interior space.
3 more elements
Dependencies are inferred from the claim text.