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US 7,028,411 B1Granted
Level and chalk line marker
OwnerMark Kascheinventor
Life of this patent
Estimating the term…
Abstract
A chalk line marker is releasably connectable to a level. When connected to the level, the chalk line marker is employed to provide chalk marks in orientations established by the level. When the chalk line marker is removed from the level, the level and chalk line marker can be used independently in conventional fashion.
Claims8
In combination:
- an elongated level having first and second ends and ae an outer surface extending between said first and second ends terminating at an edge;
- a chalk line marker including a housing having a housing interior containing chalk and defining a chalk line opening communicating with said housing interior and a chalk line wound within said housing projecting outwardly from said housing interior through said chalk line opening and selectively movable upon unwinding and winding thereof, respectively, between an extended position and a retracted position, said chalk line having one chalk line end disposed within said housing interior at all times and the other chalk line end comprising a distal end with a retainer clip disposed outside said housing interior;
- and
- connector structure releasably connecting said chalk line marker to said level whereby said chalk line marker may be selectively employed with said level to provide chalk marks with the chalk line thereof in orientations corresponding to orientations of said edge or alternatively completely removed in its entirety from said level to provide chalk marks with the chalk line thereof in a conventional manner independently of said level, and said level being employable independently of said chalk line marker upon removal of said chalk line marker.
1 more element
In combination:
- an elongated level having first and second ends and an outer surface extending between said first and second ends terminating at an edge;
- a chalk line marker including a housing having a housing interior and defining a chalk line opening communicating with said housing interior and chalk line within said housing projecting outwardly from said housing interior through said chalk line opening and selectively movable between an extended position and a retracted position, said chalk line having a distal end with a retainer clip;
- connector structure releasably connecting said chalk line marker to said level whereby said chalk line marker may be selectively employed with said level to provide chalk marks in orientations corresponding to orientations of said edge or alternatively completely removed from said level to provide chalk marks, and said level being employable independently of said chalk line marker upon removal of said chalk line marker, said connector structure located at or closely adjacent to the first end of said level, said chalk line when in said extended position extending substantially the full length of said level adjacent to said surface from said first end to said second end;
- and
- a movable chalk line contact member on said level for engagement by said chalk line when said chalk line is in said extended position and adjacent to said outer surface, said chalk line contact member movable between first and second positions, said chalk line contact member when in said first position operable to maintain said chalk line displaced away from said edge in a taut condition and biased for movement toward said edge and when in said second position operable to disengage from said chalk line whereby said chalk line will move in the direction of said edge and beyond said edge to provide a chalk mark on a structure adjacent to said level.
2 more elements
Dependencies are inferred from the claim text.