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Publication numberUS3923411 A
Publication typeGrant
Publication dateDec 2, 1975
Filing dateJan 28, 1975
Priority dateJan 28, 1975
Publication numberUS 3923411 A, US 3923411A, US-A-3923411, US3923411 A, US3923411A
InventorsBerghman Thor Johan
Original AssigneeBerghman Thor Johan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sealing strip
US 3923411 A
Abstract
A sealing strip for use in establishing seals between concrete slabs in pavings. The strip has a largely V-shaped body with a recess therein, the depth of which is greater than half the thickness of the strip, and fluted outer sides which sealingly engage the surfaces defining the joint. A head is disposed at the outer free end of each V-limb, and the heads of the V-limbs are sealingly engageable by snap action. The strip can be urged into the joint in a simple manner and in conjunction therewith the heads are snapped together for the sealing of the upper end of the joint.
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Description  (OCR text may contain errors)

United States Patent [1 1 Berghman 1 Dec. 2, 1975 l SEALING STRIP [76] Inventor: Thor Johan Berghman, Tessins vag FOREIGN PATENTS OR APPLICATIONS Switzerland 404/65 Primary Examiner-Nile C. Byers, Jr. Attorney, Agent, or FirmBucknam and Archer [57] ABSTRACT A scaling strip for use in establishing seals between concrete slabs in pavings. The strip has a largely V- shaped body with a recess therein, the depth of which is greater than half the thickness of the strip, and fluted outer sides which sealingly engage the surfaces defining the joint. A head is disposed at the outer free end of each V-limb, and the heads of the V-limbs are sealingly engageable by snap action. The strip can be urged into the joint in a simple manner and in conjunction therewith the heads are snapped together for the sealing of the upper end of the joint.

1 Claim, 2 Drawing Figures US. Patent Dec. 2, 1975 3,923,411

SEALING STRIP This invention relates to a sealing strip which is particularly intended for use in sealing the joints between concrete slabs in pavings.

For the sealing of joints between concrete slabs in pavings use is now mostly made of soft type jointing compounds which are realized either by spraying an asphalt or rubber-like composition into the joint, or by the insertion of sealing strips of rubber, plastics or other material thereinto. These strips usually are of triangular, rectangular or pentagonal cross-section and increase in width from one side surface to the other. Such strips often are hollow. The strips are urged into the joint under a pressure exerted upon the outwardly facing side of the strip. Under this pressure the strip may keel over, which in many cases cannot readily be discovered from outside, and the resulting seal will not therefore be satisfactory.

The present invention has for its object to provide a sealing strip which can be mounted in a simple manner in the joint between conventional slabs or like elements, cannot keel over, is inexpensive to manufacture and to mount, and cannot be forced downwards in the joint by collected sand, gravel etc.

For better elucidation, the invention will be more fully described in the following with reference to the accompanying drawings in which:

FIGS. 1 and 2 show an embodiment of the sealing strip in unmounted and mounted state, respectively.

The sealing strip shown in cross-section in FIG. 1 has a body of substantially V-shaped configuration and is formed with a V-shaped groove 11, two of the outer boundary planes of the strip body being parallel to the side surfaces of said groove. In the side surfaces the strip 10 has longitudinal flutes 12 with intermediate lands 13 of triangular cross-section. At the upper end, each of the V-limbs of the strip has a head 14 and 15, respectively. The inner sides of the heads 14, 15 extend, in the unloaded state of the strip shown in FIG. 1, approximately in alignment with the inner sides of the V-limbs, while the outer sides of the heads extend approximately on an assumed line drawn through the apices of the subjacent triangular portions. At the inner side and the side facing the other head, respectively, the head 14 has a nose 16 which tapers towards its base, and the other head 15 at its inner side has a recess 17 which widens inwardly to accommodate the nose 16. It appears from FIG. 2 that the heads can be snapped together by means of the nose 16 and the recess l7 and retained in snapped-together position.

When a seal is to be realized by means of the sealing strip according to the present invention the strip is placed over the joint to be sealed, for instance a joint between two concrete slabs, which has steps 18 at some distance from the outer end, and the dimension of the sealing strip is so selected that the maximum width of the strip somewhat exceeds the width of the joint when the limbs of the V are compressed. The sealing strip is placed over the joint with the apex of the V- configuration directed inwardly and then pressure is exerted on the bottom of the V-shaped groove by means of a suitable tool. This will force the sealing strip 10 inwardly in the joint until the undersides of the heads 14, 15 bear against the steps 18 of the joint, when the heads are secured together by means of the snapaction device.

As the sealing strip is pulled into the joint by the pressure being exerted at the front. end of the strip, there is no risk that the strip will keel over in the joint. After the V-shaped sealing strip has been placed in the joint the inner sides thereof are in proximity to or in contact with one another while the outer sides of the strip sealingly engage the side surfaces defining the joint. The flutes 12 do not only result in a safe retention of the strip in the joint but will also form passages between the strip and the boundary sides of the joint for leading aw ay moisture. By reason of the heads which bear with their undersides against the steps 18 of the joint, the strip cannot be forced downwardly in the joint by external load, and because of the construction of the heads foreign material is also prevented from penetrating into the groove 11.

While a preferred embodiment of the strip has been described above and shown in the drawing it will be realized by those skilled in the art that many modifications are possible within the spirit and scope of the appended claim.

What I claim and desire to secure by Letters Patent 1. A sealing strip for sealing of joints between concrete slabs in pavings comprising a V-shaped body of resilient material, having formed therein a longitudinal V-shaped groove of a depth greater than half the thickness of the strip, said body having two of the outer boundary planes parallel with the side surfaces of the V-shaped groove and having flutes in its remote outer sides, a head on the free end of each of the V-limbs, the inner sides of said heads extending in alignment with the associated inner side of the V-groove, while the outer sides of said heads extend along a straight line drawn through the outer points of the portions which delimit said flutes in the outer sides of the V-limbs, said heads having on their facing inner sides snap means for securing together said heads in close proximity to each other after localization of said strip in a joint between concrete slabs.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2068035 *Jun 3, 1935Jan 19, 1937Goodrich Co B FPacking strip
US3426658 *Jan 26, 1967Feb 11, 1969Frederickson Albert JContraction joint for pavements
US3434401 *Jun 20, 1967Mar 25, 1969Us InteriorSealing strips for concrete slabs
US3850539 *Jun 5, 1972Nov 26, 1974Watson Bowman AssociatesGap-sealing device
US3871787 *Oct 30, 1973Mar 18, 1975Stegmeier William JamesJoint structure for concrete materials and the like
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4090800 *Dec 8, 1976May 23, 1978Koch Vergil WJoint-forming device
US4141189 *May 20, 1977Feb 27, 1979Borjeson Jan TMethod of and means for sealing expansion and contraction joints of buildings and pavements
US4255903 *Jul 18, 1979Mar 17, 1981Clarke ReynoldsSnap-together sealing gasket
US4320611 *Feb 4, 1980Mar 23, 1982Freeman Albert JFire retardant seal
US4366590 *Dec 23, 1980Jan 4, 1983Waldemar KosterExpansion joint
US4633640 *Mar 25, 1986Jan 6, 1987Hutter Gerhard PWall anchor or support
US5083326 *May 18, 1989Jan 28, 1992Casebier Iii Charles EApparatus for protecting against expansion of freezing water
US5129754 *Feb 26, 1988Jul 14, 1992Jmk International Inc.Expansion joint seals
US5531455 *Sep 16, 1993Jul 2, 1996Calixto; Jorge Gabrielli Z.Expansion joint sealing element
US5992113 *Jan 8, 1997Nov 30, 1999John B. SzynalCompressible foam weather stripping
US6272806 *Mar 24, 1999Aug 14, 2001Face, Iii S. AllenJoint insert and method/system for using same
US6991400 *Feb 15, 2001Jan 31, 2006Negueloua Gerald ICap sealer for caulked joints
US7144071 *May 6, 2003Dec 5, 2006L&L Products, Inc.Multi segment parts
US7338050 *Jun 22, 2004Mar 4, 2008Robert R TellezExpansion joint gasket
US7481028 *Jul 17, 2006Jan 27, 2009Anderson CorporationMulling and sealing system for compound fenestration units
US8132380 *Oct 19, 2009Mar 13, 2012Wilkes Jr Robert DavidCompliant trim for concrete slabs
US8756884May 6, 2010Jun 24, 2014Andersen CorporationMulling and sealing system for compound fenestration units
US8919045 *Dec 11, 2008Dec 30, 2014Edwards Industries, Inc.Bulb seal
US8955287 *May 25, 2007Feb 17, 2015Mike FortneyReplacement expansion joint for cement
US9003712 *Apr 26, 2011Apr 14, 2015Edwards Industries, Inc.Method of making a bulb seal
Classifications
U.S. Classification404/64, 49/489.1, 52/396.6
International ClassificationE01C11/02, E01C11/10
Cooperative ClassificationE01C11/106
European ClassificationE01C11/10C
Legal Events
DateCodeEventDescription
Apr 29, 1987AS02Assignment of assignor's interest
Owner name: BERGHMAN, THOR J.
Owner name: EURO SYSTEM AKTIEBOLAG, BOX 1004, S-331 01 VARNAMO
Effective date: 19870216
Apr 29, 1987ASAssignment
Owner name: EURO SYSTEM AKTIEBOLAG, BOX 1004, S-331 01 VARNAMO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BERGHMAN, THOR J.;REEL/FRAME:004709/0632
Effective date: 19870216