Geometrical instruments – Straightedge type – Wall guide and plumb
Reexamination Certificate
2005-01-18
2005-01-18
Bennett, G. Bradley (Department: 2859)
Geometrical instruments
Straightedge type
Wall guide and plumb
C033S0010LE
Reexamination Certificate
active
06842992
ABSTRACT:
A building-wall-layout tool has a pair (29) of two line holders (1, 30, 31), each of which have spike legs (10, 12, 25) for being driven into ground material (13) proximate opposite ends (36, 42) of an intended wall (35) of an intended concrete slab for an intended building. Each of the line holders include a fastener section (2) and a handle section (3). The fastener section includes a fastener slot (6) extended from proximate a first side to proximate a second side of the fastener section. The fastener slot is articulated for receiving at least two line fasteners (7, 8) which are articulated for being slid in the fastener slot and affixed removably to sides of the fastener slot selectively intermediate the first side and the second side of the fastener section. The line fasteners are articulated for receiving and retaining indicator lines (40, 41) designedly. The first side of each of the line holders includes a first spike aperture (9) and a second spike aperture (11) that preferably have height adjusters (19, 20, 21, 22) for fastening and unfastening the spike legs at desired heights or distances of the line holders above the ground material for working conditions.
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Bennett G. Bradley
Livingston Edward M.
Miller Angela M.
The Livingston Firm
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