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US 5,727,325 AGranted
Multipurpose square
OwnerBarry D. Mussellinventor
Life of this patent
Estimating the term…
Abstract
A multipurpose square (20A) (20B) which performs and simplifies many of the tasks previously accomplished by the use of multiple tools including the framing square, try square, combination square, layout square, and protractor. The square includes indicia in calibrated scales for rafter, angle, and linear measurements. The square has a profile which facilitates the rapid marking of layouts for various standard dimensional construction materials as well as marking cuts for stair stringers and bond timbers. The square is configured to allow it to be "holstered" or carried in the pockets of standard tool aprons so as to be readily accessible to the tradesman.
Claims20
A multipurpose square comprising:
- an elongate substantially planar handle having a first end, a second end, an inside face, and an outside face;
- a right triangular substantially planar body extending out from said inside face, said body having a first measurement edge, a hypotenuse edge, and an axis perpendicular to said inside face, the right angle of said right triangular body being adjacent to said first end;
- an elongate plumb cut orifice in said body, said plumb cut orifice having opposite elongate edges generally parallel with said hypotenuse edge;
- an elongate marking orifice in said body having opposite elongate edges generally parallel with said first measurement edge;
- a first pivot point at the intersection of said first measurement edge and said inside face;
- a second pivot point at the intersection of said hypotenuse edge and said inside face;
- common rafter plumb cut indicia positioned along one edge of said plumb cut orifice;
- hip and valley rafter plumb cut indicia positioned along the opposite edge of said plumb cut orifice;
- common rafter level cut indicia positioned along one edge of said marking orifice;
- hip and valley rafter level cut indicia positioned along the opposite edge of said marking orifice;
- degree indicia positioned along said hypotenuse edge, whereby layout marks may be made in units of degrees.
8 more elements
A multipurpose square comprising:
- an elongate substantially planar handle having a first end, a second end, an inside face, and an outside face;
- an elongate substantially planar tongue having an axis perpendicular to said inside face, said tongue having a first measurement edge and a first marking edge, both said edges being parallel to said axis of said tongue and spaced a first predetermined distance apart, whereby certain standardized distances may be easily marked for the location of building components and the like, said tongue extending away from said inside face so that said first measurement edge intersects with said first end;
- a right triangular substantially planar body having an axis perpendicular to said inside face so that said body extends away from said inside face parallel and substantially coplanar with the axis of said tongue, said body having a second marking edge and a hypotenuse edge, said second marking edge being parallel with and spaced from said first marking edge a second predetermined distance, there being a clear space therebetween, whereby certain standardized distances may be easily marked for the location of building components and the like;
- a first pivot point at the intersection of said first measurement edge and said inside face;
- markings along at least one edge of said body, said markings being spaced from one another at predetermined angular intervals, thereby serving as pitch indicators.
2 more elements
A multipurpose square comprising:
- an elongate substantially planar handle having a first end, a second end, an inside face, and an outside face;
- a right triangular substantially planar body extending out from said inside face, said body having an axis perpendicular to said inside face, and having a first measurement edge, and a hypotenuse edge, the right angle of said right triangular body being adjacent to said first end;
- an elongate plumb cut orifice in said body, said plumb cut orifice having opposite elongate edges generally parallel with said hypotenuse edge;
- a first pivot point at the intersection of said first measurement edge and said inside face;
- common rafter plumb cut indicia positioned along one edge of said plumb cut orifice;
- hip and valley rafter plumb cut indicia positioned along the opposite edge of said plumb cut orifice;
- degree indicia positioned along said hypotenuse edge, whereby layout marks may be made in units of degrees;
- a notch marking orifice in said body with a plurality of edges, said notch marking orifice having at least a first edge substantially parallel with said handle and at least a second edge substantially parallel with said first measurement edge, said first edge being spaced approximately 1.5 inches from said inside face, said second edge being disposed between said first edge and said inside face, whereby marks for notches may be easily made on floor joists and the like.
5 more elements
Dependencies are inferred from the claim text.