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Publication numberUS3429084 A
Publication typeGrant
Publication dateFeb 25, 1969
Filing dateJul 10, 1967
Priority dateJul 10, 1967
Publication numberUS 3429084 A, US 3429084A, US-A-3429084, US3429084 A, US3429084A
InventorsBen Brewer
Original AssigneeBen Brewer
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Insect-proof weep hole
US 3429084 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Feb. 25, 1969 B. BREWER 3,429,084

INSECT-PROOF WEEP HOLE Filed July 10, 1967 m yf/w-ae {7 55w BEEa/EQ United States Patent "Ice 1 Claim ABSTRACT OF THE DISCLOSURE A duct assembly, to permit circulation of air, and drain condensation from between walls and to prevent invasion of insects, the duct assembly including a screen and an ant trap chamber.

This invention relates generally to air circulation devices for brick and concrete walls.

It is generally well known to those skilled in the art that in the construction of two walls adjacent each other, the removal of water condensation therebetween and the circulation of air therebetween is a necessity. At the same time it is also desired to prevent the invasion of insects through any method used to provide an air circulation and drain condensation removal. Heretofore it has been the practice during the wall construction to place an oil soaked sash cord in the joints and to remove the sash cord after the job was completed, or simply to punch a hole in the joint. This method, however, was not insect-proof. Thus there is a need for an improved system for circulation of air and a drain for the condensation.

Accordingly it is a principal object of the present invention to provide a duct assembly to permit circulation of air and to drain condensation from between walls while at the same time preventing an invasion of insects therethrough.

Another object of the present invention is to provide an insect-proof weep hole which is made in a singular unit and which can be readily inserted and moulded into the concrete during structure of a joint.

Yet a further object of the present invention is to provide an insect-proof weep hole which includes a screen over the enrance thereof.

Still a further object of the present invention is to provide an insect-proof Weep hole having an ant trap chamber therewithin so as to prevent the movement of ants through the duct even if the ant is sufiiciently small to have entered through the screen.

Other objects of the present invention are to provide an insect-proof weep hole which is simple in design, inexpensive to manufacture, rugged in construction, easy to use and efiicient in operation.

These and other objects will be readily evident upon a study of the following specification and the accompanying drawing wherein:

FIGURE 1 is a front elevation view of a wall showing the present invention installed therein;

FIGURE 2 is a cross-sectional view taken on the line 22 of FIGURE 1;

FIGURE 3 is a cross-sectional view taken on the line 33 of FIGURE 2; and

FIGURE 4 is a perspective view of the screen unit that forms a parts of the present invention.

Referring now to the drawing in detail, reference numeral represents an insect-proof weep hole, according to the present invention, wherein there is an outer duct 11, and an inner duct 12 which is connected at one end removably to a duct extension 13.

3,429,084 Patented Feb. 25, 1969 The insect-proof weep hole 10 is installed in the brick wall 14 comprised of a plurality of bricks 15 in an interlocked fashion and which are spaced apart by joints 16 formed of a concrete mixture placed around the sides and bottom of each brick. As is shown in FIGURE 2 of the drawing, the wall 14 is adjacent a wall 17 between which is a relatively narrow space 18, the wall 17 being of a like construction as the wall 14. The insect-proof Weep hole 10 is installed in the wall 14 and may be connected to a duct extension 13 that is installed in the wall 17.

The insect-proof weep hole 10 is of generally Z-shaped configuration when viewed from a side, the configuration being formed by the positions of the inner and outer ducts. Each duct may be of any cross-sectional configuration such as rectangular as shown, round, square or oval. The weep hole unit may further be made of any material desired such as plastic, metal or the like.

At one end of the outer duct 11, there is a screen unit 19 installed which includes a frame 20 having a screen 21 installed therein. The screen is of a relatively very fine mesh so as to discourage the passage of insects therethrough. At the opposite end of the outer duct there is an ant trap chamber 22 installed which is adjacent one end of the inner duct 12. The ant trap chamber comprises a frame fitted between the inner and outer ducts, the frame being formed having downwardly converging sides 23 so as to form a lower lip 24 that is spaced away from the inner side 25 of the duct 11. Thus an ant traveling within the outer duct 11 cannot readily locate the relatively small opening formed by the edge 24 and which leads from the outer duct into the inner duct. The opposite end of the inner duct 12 is provided with an extension 26 extending out of the wall 14 and for the purpose of receiving the end 27 of the duct extension 13 located extending through the wall 17 The entire insect-proof weep hole device comprises a singular unit wherein the screen unit may be removed and replaced. The outer duct could be made round if preferred and threaded on its outer side, having a nut, gasket and lock nut for purpose of connection with walls other than masonry such as metal, Masonite or the like. The nut could be screwed on, then the weep hole inserted through a hole drilled for this purpose with the lock-nut outside.

In operative use, it will be noted that there is an air space 28 between the walls 14 and 17 which extends downwardly to the insect-proof weep hole. Therebelow there is a concrete fill 29. Condensation formed within the space 28 will thus drain out through the weep hole which will prevent the passage of insects thereinto from the outer side.

I claim:

1. In an insect-proof weep hole, the combination of an assembly including an outer duct and an inner duct having an ant trap therebetween, one end of said outer duct having screen means to prevent the entry of insects therethrough, and one end of said inner duct having connection means to a duct extension, said assembly being of Z-shaped configuration when viewed from a side, said outer duct being positioned at a lower elevation than said inner duct, said screen means comprising a frame fitted within the end of said outer duct, said frame having a screen integrally formed thereacross, said ant trap chamber comprising a frame between said ducts and being located below one end of said inner duct and above the opposite end of said outer duct, said frame being formed with downwardly converging sides having a lower edge forming a relatively small opening, said edge of said open- 3 4 ing being spaced apart accordingly from the inner Walls 2,782,464 2/1957 Joppich 52-303 of said lower outer duct to prevent an ant or other in- 2,997,806 3/1961 Duvan sect to readily locate said opening and pass therethrough.

FRANK L. ABBOTT, Primary Examiner.

5 PRICE C. FAW, JR., Assistant Examiner.

References Cited UNITED STATES PATENTS 2,616,284 11/1952 Leontovi'ch 52-303 US. Cl. X.R. 2,779,065 1/1957 Rehme 52 303 43121; 52303

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2616284 *Apr 26, 1949Nov 4, 1952Valerian LeontovichPrecast concrete block joint
US2779065 *Jul 20, 1953Jan 29, 1957Rehme William LVentilating means for a building wall
US2782464 *Jul 27, 1954Feb 26, 1957Joppich Robert HVentilating vent for wall of building
US2997806 *Feb 16, 1960Aug 29, 1961Duvall George SBug trap
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4102093 *Oct 25, 1977Jul 25, 1978Harris William FInsect control system
US4282691 *Sep 26, 1979Aug 11, 1981Risdon David GWeep hole device
US4656803 *Jun 9, 1986Apr 14, 1987Chludil Steven TMultiply glazed window and door assemblies with screened breathing passages
US5203795 *Oct 17, 1991Apr 20, 1993Balamut Jay WWeephole ventilator and insect guard
US5274968 *May 15, 1992Jan 4, 1994Jorge PardoBuilding block for use with flashing and arrangement for weeping condensation
US5870864 *Oct 30, 1996Feb 16, 1999Snyder; Jeffrey ThomasWater collection pan for unit masonry wall systems and drainage system incorporating same
US6044594 *Sep 18, 1998Apr 4, 2000Desselle; Douglas P.Weep hole barrier
US6105323 *May 18, 1998Aug 22, 2000Watertight Products (Aust) Pty. Ltd.Wall drainage assembly
US6112476 *Jul 21, 1999Sep 5, 2000Masonry Accessories, LlcMasonry weep hole insert
US6176048 *Jun 28, 1999Jan 23, 2001Bruce B. BergerWeep hole screen device and method
US6202366Feb 11, 1999Mar 20, 2001Jeffrey Thomas SnyderWater collection pan for unit masonry wall systems and drainage system incorporating same
US6360493 *Jun 7, 2000Mar 26, 2002Ignacio Torres, IIIWeep hole insect barrier
US6474031 *Mar 8, 2001Nov 5, 2002Dale PhillipsWeephole drainage aid and pest barrier
US6662504Apr 18, 2001Dec 16, 2003Norbert V. KrogstadFlashing and weep/vent system for a masonry wall
US6912820May 21, 2003Jul 5, 2005Tom SourlisDrainage system for use in masonry block construction
US7028444Apr 11, 2003Apr 18, 2006Wirth Timothy LSupport device for orthogonal mounting of sheet material
US7216460Mar 21, 2003May 15, 2007Tom SourlisDrainage system for use in masonry block construction
US7448175Mar 2, 2005Nov 11, 2008Tom SourlisDrainage system for use in masonry block construction
US7726084May 10, 2004Jun 1, 2010Tom SourlisDrainage systems for use in masonry block construction
US7823339 *May 2, 2003Nov 2, 2010Huber Jr Edmund BurkeWeep hole screen
US7823349Aug 11, 2009Nov 2, 2010Alexander Ernest EMasonry wall vent
US7877946 *May 22, 2008Feb 1, 2011Illinois Products CorporationWeep vent
US7980035Nov 19, 2008Jul 19, 2011D Apolito Anthony DFoundation wall moisture abating vent and system
US8171677 *Jan 5, 2007May 8, 2012John Noel FlintInsert for a weep hole opening in a masonry wall
DE3121692A1 *Jun 1, 1981Dec 23, 1982Helmut NetterDevice for keeping ventilating joints open
EP0137466A2 *Oct 5, 1984Apr 17, 1985Jörn-Hinrich OstermannDevice for constructing air passages
WO1982000312A1 *Jul 9, 1981Feb 4, 1982T JorgensenVentilation strip for building constructions
WO1988008905A1 *May 9, 1988Nov 17, 1988Dalum Larsen FlemmingVentilation means
WO2011054780A2Nov 1, 2010May 12, 2011Kelly, JohnClosable throughflow member
U.S. Classification52/101, 43/121, 52/302.1
International ClassificationD01D5/20, E04B1/70
Cooperative ClassificationE04B1/7053, E04B1/7076, D01D5/20
European ClassificationE04B1/70V1, D01D5/20, E04B1/70S4