US 4,625,940 AGranted

Wall sleeves

AssigneeThunderline Corporation

InventorBruce G. Barton

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Abstract

A one-piece, unitary, molded resin wall sleeve precursor member has cup-shaped end sections of external diameter D each having a radial flange, with each flange connecting to a hollow transition section that in turn connects to one end of a series of N coaxial sleeve sections of internal diameter D, the sleeve sections being interconnected by N-1 hollow water stop sections having diameters much larger than D. A wall sleeve assembly is derived from this precursor member by cutting off the end sections at their flanges and cutting off the transition sections to leave a wall sleeve, including the water stop and sleeve sections, having a total length L approximately equal to the width W of a concrete wall. The cup-like end sections are inserted into the ends of the wall sleeve, and their flanges afford a convenient means to anchor the resulting assembly to a concrete form.

Claims42

Dependent claims

A unitary, one-piece molded resin wall sleeve precursor convertible into a wall sleeve assembly for forming a continuous unimpeded passageway of given internal diameter D through a concrete wall by cutting off end sections, transition sections, and portions of sleeve sections from a central sleeve member portion of the precursor and inserting the end sections into the remaining sleeve member, comprising:

first and second end sections, at opposite ends of the wall sleeve precursor member, each and section including a cylindrical body portion having an external diameter D and a substantially flat mounting flange projecting radially outwardly of the axially inner end of the body portion;
first and second transition sections adjoining the first and second end sections, respectively, and joining the end sections to opposite ends of a central sleeve member portion, each transition section including an outer transition wall extending axially inwardly from the outer rim of the mounting flange of the associated end section and a transition boundary wall extending radially inwardly from the outer transition wall;
and the central sleeve member portion comprising:
N coaxial cylindrical sleeve sections of internal diameter D interposed in series between the two transition sections;
and
N-1 annular, hollow, axially compressible water stop sections each interconnecting two adjacent sleeve sections, each water stop section having two spaced walls extending radially outwardly of the ends of the adjacent sleeve sections and interconnected by a water stop rim wall, the internal diameter of the rim wall being much larger than D.

3 more elements

A cylindrical wall sleeve assembly for forming an unimpeded passageway of given internal diameter D through a concrete wall of given width W, comprising:

a first unitary one-piece cylindrical molded resin sleeve member including two coaxial cylindrical sleeve sections each having an internal diameter D joined together by water stop means for precluding water flow along the outer surface of the first sleeve member, the water stop means comprising an annular, hollow, axially compressible water stop section having two spaced walls extending radially outwardly of the ends of the adjacent sleeve sections and interconnected by a water stop rim wall, the internal diameter of the rim wall being at least about four inches larger than D;
a second unitary one-piece cylindrical molded resin sleeve member including a cylindrical sleeve section having an internal diameter D joined to a coaxial cylindrical end section having an external diameter D, the end section of the second sleeve member being inserted into one end of the first sleeve member in tight fitting relation to afford an assembled sleeve having an overall length L approximately equal to the wall width W;
and a pair of end members, each end member including a cylindrical body having a external diameter D to fit tightly into an open end of the assembled sleeve, each end member further having a substantially flat radially outwardly projecting mounting flange at its outer end which limits insertion of the end member into the sleeve, the end member flanges comprising mounting means for mounting the assembly in fixed position between the opposed walls of a concrete form while allowing removal of both end members, upon dismantling of the form, for full exposure of the interior of the sleeve.

Dependencies are inferred from the claim text.