Concrete dowel placement sleeves
First Claim
1. A concrete dowel placement apparatus comprising:
- a dowel receiving sheath comprising a generally tubular body having an outer surface, an open proximal end, a closed distal end and an inner surface defining a hollow interior compartment extending axially therein, said interior compartment being sized and configured to slidably receive therein a dowel rod of predetermined size and to permit said dowel rod to remain longitudinally slidable as it resides within said interior compartment;
at least one pair of projections formed on said inner surface, said projections being adapted to align said dowel rod within said interior compartment when said dowel rod is received therein; and
means for connecting said dowel receiving sheath to a generally flat surface such that said open proximal end of said sheath will abut said generally flat surface and said tubular body of said sheath will extend away from said generally flat surface.
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Accused Products
Abstract
Slip and non-slip dowel placement sleeves are disclosed. The slip dowel placement sleeve generally comprises a tubular dowel receiving sheath having a closed distal end and open proximal end. A connecting means is formed around or inserted into the proximal opening of the sheath to facilitate attachment of the sheath to a concrete form. Smooth sections of dowel rod may then be advanced through holes drilled in the concrete form and into the interior compartment of the sheath. Concrete is poured within the form and the dowel rod remains slidably disposed within the interior of the sheath. Variations of the basic slip dowel placement sleeve of the invention include a tapered "extractable" sleeve and a corrugated "grout tube" for placement of non-slip dowel or rebar.
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Citations
35 Claims
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1. A concrete dowel placement apparatus comprising:
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a dowel receiving sheath comprising a generally tubular body having an outer surface, an open proximal end, a closed distal end and an inner surface defining a hollow interior compartment extending axially therein, said interior compartment being sized and configured to slidably receive therein a dowel rod of predetermined size and to permit said dowel rod to remain longitudinally slidable as it resides within said interior compartment; at least one pair of projections formed on said inner surface, said projections being adapted to align said dowel rod within said interior compartment when said dowel rod is received therein; and means for connecting said dowel receiving sheath to a generally flat surface such that said open proximal end of said sheath will abut said generally flat surface and said tubular body of said sheath will extend away from said generally flat surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 26)
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8. A concrete dowel placement apparatus comprising:
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a dowel receiving sheath comprising a generally tubular body having an outer surface, an open proximal end, a closed distal end and a hollow interior compartment extending axially therein; a foot member, said foot member being slidably positionable about said outer surface of said sheath adjacent said closed distal end thereof, said foot member being adapted to support said dowel receiving sheath; and a flange extending perpendicularly about said open proximal end of said sheath, said flange being formed to extend completely about said open proximal end and having an inner surface and a generally flat outer surface, wherein said outer surface of said flange is held in abutting contact with a flat surface of a concrete form to prevent seepage of concrete into said hollow interior compartment of said sheath. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A concrete dowel placement apparatus comprising:
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a dowel receiving sheath comprising a generally tubular body having an outer surface, an open proximal end, a closed distal end and a hollow interior compartment extending axially therein; a foot member, said foot member being positionable about said outer surface of said sheath adjacent said closed distal end thereof, said foot member being adapted to support said dowel receiving sheath; a generally rectangular flange extending perpendicularly about said open proximal end of said sheath, said flange being formed to extend completely about said open proximal end and having an inner surface and a generally flat outer surface, wherein said outer surface of said flange is held in abutting contact with a flat surface of a concrete form to prevent seepage of concrete into said hollow interior compartment of said sheath; and at least one strength imparting gusset extending between a proximal portion of said outer surface of said sheath and said inner surface of said flange. - View Dependent Claims (17, 18, 19, 20)
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21. A concrete dowel placement apparatus comprising:
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a dowel receiving sheath comprising a generally tubular body having an outer surface, an open proximal end, a closed distal end and a hollow interior compartment extending axially therein; and a plate member defining an inner surface and an outer surface wherein said inner surface includes a mandrel formed on and extending perpendicularly therefrom, said mandrel being sized and configured to be releasably receivable into said hollow interior compartment by way of said open proximal end of said receiving sheath and said outer surface having a generally flat configuration so as to be placeable into abutting contact with a flat surface of a concrete form. - View Dependent Claims (22, 23, 24, 25, 27)
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28. A concrete dowel placement apparatus comprising:
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a dowel receiving sheath comprising a generally tubular body having an outer surface, an open proximal end, a closed distal end and a hollow interior compartment extending axially therein; and a flange extending perpendicularly about said open proximal end of said sheath, said flange being formed to extend completely about said open proximal end and having an inner surface and a generally flat outer surface, wherein said outer surface of said flange is held in abutting contact with a flat surface of a concrete form to prevent seepage of concrete into said hollow interior compartment of said sheath. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. A concrete dowel placement apparatus comprising:
a dowel receiving sheath comprising a generally tubular body having an outer surface, an open proximal end, a closed distal end and a hollow interior compartment extending axially therein; and
a flange extending perpendicularly about said open proximal end of said sheath, said flange being formed to extend completely about said open proximal end and having an inner surface and an outer surface, wherein said outer surface of said flange is held in abutting contact with a flat surface of a concrete form to prevent seepage of concrete into said hollow interior compartment of said sheath.
Specification