Abstract: A drywall repair kit which includes a hollow tubular guide and a solid plug for fitting into the guide. The solid plug includes adhesive on its insertion end to secure the plug in place. After the plug is secured the guide is removed. The length of the plug is only slightly less than the stud space between drywall sheets plus the thickness of the drywall.

Abstract: An article for repairing an opening in a wall surface and including at least one bracket forming a cage when installed in the opening. The bracket has a substantially "U"-shaped body with legs terminating at outwardly extending flanges. Each flange is adapted for insertion into the edge of the opening when the bracket is installed. The article also includes a support sized and shaped to substantially fill the cage. The support has at least one element to which patch material bonds when the article is placed in the opening and the patch material is introduced into the opening.

Abstract: This invention is an apparatus and process for the reinforcing of concrete, wood, or steel columns, beams, or structures. The apparatus includes pre-made reinforcing layers constructed of engineering materials having a high tensile strength and a high modulus that are attached, via an adhesive, or fitted to the element in question to create a reinforcing shell exoskeleton thus increasing the column's compressive, shear, bending, ductility, and/or seismic load carrying capacity.

Abstract: A method of rehabilitating a wood pulp digester, comprising applying to an interior surface of the digester wall a tacky silicone rubber layer, and then applying vertical strips of metallic sheet material to form a composition layer of said silicone rubber and said metal strips.

Abstract: A method and apparatus for securing disengaged, adjacent vinyl siding panels, the repair element having a generally planar body having a top edge of a thickness greater than the bottom edge, the planar body being slightly arcuate in shape, the top edge of the repair element being selectively frictionally engageable with a channel formed on the upper edge of a secured vinyl siding panel, the lower edge being engageable with the channel formed on the lower edge of the disengaged vinyl siding panel so as to resecure it to its adjacent vinyl siding panel.

Abstract: A door frame reinforcing plate used for reinforcing a door frame adjacent a lock striker. The reinforcing plate is comprised of a flat plate section adapted to be secured over an interior flat surface of the frame adjacent the lock striker. The flat plate section has a lock bolt opening therein adjacent a first end of the plate section where the plate is bent at right angle to form a flange to overlie an edge surface portion of the door frame. A plurality of holes are provided in the plate above and below the opening for receiving connecting screws which secure the lock striker. A further series of holes is provided in the plate section to receive fasteners which are secured to the frame from an exterior surface of the frame. The reinforcing plate is not visible from outside the door frame, as it is concealed behind the door frame and behind the usual frame moldings.

Abstract: An improvement in the known method of setting or resetting poles in the ground or ground line protection of encapsulation of pole treatment chemicals in the ground and enhancement of the strength, density, ratio of foam polyurethane resins formed in-situ from polyisocyanate and resin reactive therewith. Ground water and detrimental natural soil chemicals are often encountered in pole setting and affect polyurethane foam formation by undesirably reacting with the polyurethane to give a foam of insufficient density and strength. This improvement comprises stabilizing the highly reactive isocyanate component by pre-reacting to form a prepolymer. This composition decreases the cost per unit of foam per pole installation. There is also the method for the addition to the polyurethane composition of various repellant materials and preservative agents for the pole.

Abstract: A sludge clarifier vessel bottom is disclosed which, in one embodiment, includes a bottom wall of the vessel and a portion of a steel side wall of the vessel, the walls intersecting at a corner, the bottom including the walls and a primer coat thereon, an amount of putty in the corner a resin base coat on the primer coat, fiberglass cloth on the resin base coat and a top resin coat on the fiberglass cloth. In one aspect crack controlling apparatus according to this invention is disposed beneath the plastic coat and the plastic coat is, preferably, not bonded to the crack controlling apparatus. Also disclosed are clarifiers with such bottoms.

Abstract: A method is disclosed for permanently repairing roofs using a colloidal clay such as sodium montmorillonite (commonly called bentonite). A layer of particles of the colloidal clay is spread on the surface of the roof that is to be repaired so that the layer of colloidal clay covers any cracks or openings in the roofing material that are causing leaks. A membrane made of water impermeable material is then applied over the layer of colloidal clay particles so as to confine the particles underneath the membrane. During a rainstorm, water wets the colloidal clay, and the clay swells rapidly to form a water tight blockage between the roof and the membrane. Rain water cannot infiltrate beneath the membrane and thus cannot leak through holes or openings in the roof material that have been covered by the layer of colloidal clay and the membrane. The colloidal clay material is held permanently in place beneath the membrane, and thus the repair is a permanent repair rather than a temporary repair.

Abstract: A low cost relatively simple method is presented for patching single ply roof membrane derived from chlorosulfonated polyethylene by using a procedure involving N-methyl-2-pyrrolidone or NMP chemical liquid activator with proper steps therebetween and subsequently completing the patching method by following standard known welding procedures. This method results in a welded seam that can be made as strong as the roof membrane itself.

Abstract: A chimney reinforcing device for increasing the resistance of a brick chimney to destruction during an earthquake. The chimney to be reinforced is of the type which extends above the roof line and which is built between two vertical studs within a wall. The chimney is reinforced by two shorter lengths of angle iron extending from near the top of the chimney to near the roof line and two longer lengths of angle iron which extend on the exterior corners of the chimney below the roof line. These four angle irons are tied together by one or more cables. The two longer lengths of angle iron are secured to the vertical studs providing a chimney top which is supported by the lower portion of the chimney and which is less likely to be destroyed in an earthquake.

Abstract: Defects in wooden boards, such as knots, knotholes or cracks, are repaired by forming an opening in the board at the site of the defect and forming a plug that fills the opening. In some forms of the invention the opening has a shape which interlocks the plug to the board. In another form of the invention, the plug is held in place by a transversely extending resilient member that is embedded in the plug and which is under tension which causes edge portions of the member to bite into or bear against the adjacent wood. Forming the opening includes cutting away bark encasement tissue that may adjoin the defect which encasement can cause a discoloration upon painting of the board and may eventually loosen. In some forms of the invention, cracks are repaired by making plural saw cuts along a crack to form the opening with the saw having a different angling relative to the board during each saw cut.

Abstract: A method and apparatus for repairing laminated material or cracked material includes preheated molds (30 and 130) which have cavities (34 and 134) shaped to generally conform to a given shape of a workpiece (20). Clamps (40, 41 and 42) apply pressure to the molds, and thereby the workpiece. In a preferred embodiment, the mold (30) has an auxiliary cavity (35). Adhesive may be injected into the mold cavity (134) to repair a delaminated workpiece and a patch adhesive to the mold cavity (34) to repair a crack.

Abstract: A simulated log siding for a cabin, house or other building is disclosed which can be constructed of tree heartwood, such as oak, or vinyl plastic. In the heartwood species, elongated planks are provided which have an outwardly bowed outer facing surface and a fiat inwardly facing surface. Each plank contains a notched inwardly facing lower edge and a rail extending along an upper edge of the outwardly bowed surface. The rail of a lower row of such planks inserts into the rabbet joint of an immediately adjacent upper row of such planks to provide a moisture barrier between adjoining rows. In the vinyl plastic species elongated planks are provided which also have an outwardly bowed outer facing surface. A flat panel is attached along an upper edge of the bowed surface which contains an outwardly projecting, downwardly opening catch channel or member.

Abstract: A method and apparatus for repairing a casting in a cold metal repair process includes a plurality of drilling fixtures which facilitate the creation of one or more lock receiving recesses positioned generally transverse to the casting crack. The lock receiving recesses are formed of a single sized circular bore combination having alternating double and single circular portions to maximize strength. A plurality of correspondingly configured metal locks are inserted into the lock receiving recesses to provide transverse metal locks drawing the casting portions on each side of the crack together. A plurality of threaded bores are formed along the remainder of the casting crack in overlapping spacing which receive a corresponding plurality of stitching pins. The stitching pins each define threaded shaft portions having pointed ends and undersized major pitch diameter threads adjacent the pointed ends.

Abstract: A rigid covering is joined to a concrete floor by a composite having a upper and lower nonwoven layers separated by a thin plastic film and interconnected by fiber bridges extending through holes in the film and formed by needle punching through the upper layer and the film. The lower layer is bonded to the floor with epoxy resin and a rigid covering is applied to the upper layer also with epoxy resin. The plastic film is non-adhering to the epoxy and the fiber bridges break in the vicinity of a crack in the concrete surface to locally delaminate the upper and lower layers of the composite and thus prevent transmission of the crack through the composite. The lower layer can be formed as a byproduct of the needle punching operation resulting in a thin adhesive conserving lower layer.

Abstract: A repair system and method for wooden power poles which includes a rigid reinforcing post member having a longitudinal bend formed therein and attachable to the outside surface of a pole to be repaired in overlying relation to the weakened rotted portion thereof, and means for attaching a driving mechanism to the upper portion of the reinforcing post member, and including means for attaching adjacent partially overlapped post members to the upper exposed portion of the pole to be repaired.

Abstract: A device for patching chemical tanks or tank cars comprised of a housing, at least a pair of electromagnets, and a seal which is secured to a pressure system which is secured to the housing, wherein the pressure system permits the seal to be extended from the housing against the surface of a tank or tank car.

Abstract: A repair kit intended to be used in repairing (in the form of a plug type device) a hole in various types of wall construction and primarily hollow core doors. This repair device is comprised of a specially designed disk so as not to allow the disk to fall into the wall cavity, and a piece of dowel rod. The disk and dowel rod may be made of a multitude of substances, giving special consideration to factors such as bondable surface area, and weight versus mass. The disk is designed to plug a hole in a wall or door, after following some simple wall or door preparation. The disk is held in place by a bonding material such as, spackle or drywall type taping compounds for wall repairs. When used for the repair of a door, it is best to use a wood glue. Once in place the disk surface is covered with plaster, Spackle, drywall compound or whatever material is appropriate for the surface being repaired.

Abstract: A simple, inexpensive and effective apparatus and method for strengthening a door frame or similar structure to make the frame less susceptible to being broken when the door is subjected to a violent blow or kick. According to the invention, a fastener is disposed through the doorjamb on each side of the bore that is formed in the facing surface of the doorjamb for receiving the bolt of a deadbolt lock or other latching device. The fasteners are disposed through the doorjamb in bores formed generally perpendicular to the edges of the doorjamb and parallel to the plane formed by the facing surface of the doorjamb. A rigid member connects the fasteners on the inside edge of the doorjamb to provide increased strength to the section of the doorjamb located adjacent to the deadbolt.

Abstract: A method of repairing utility a pole having a section damaged by an accident or decay includes the steps of severing the utility pole above the location of the damage; removing the section of the utility pole including the damaged portion, and replacing the lower section of the utility pole with a steel stanchion having a platform thereon with a split socket disposed above the platform. The upper section of the utility pole is then laterally slid onto the platform through a window provided by opening the split socket upon removing one of two shells forming the split socket. The split socket is then closed by bolting one shell to the other. A space between the outer surface of the upper section of the utility pole and the inner surface of the split socket is then filled with urethane foam. The stanchion is made of a steel which forms a protective iron oxide coating, which coating is brown in color so as to match the brown color of the utility pole.

Abstract: A concrete repairing agent injection plug for injecting the concrete repairing agent into an injection groove formed in a concrete wall to be repaired, The injection plug and the injection groove provide sufficient fluid tightness regardless of surface irregularities of the wall adjacent or around the injection groove so as to avoid leakage of the repairing agent during injection work. A elastic member is provided which is partly or fully inserted into the injection groove. First and second pressure plates are provided for interposing therebetween the elastic member. Distance between the first and second pressure plates is changeable by a pressure mechanism. When the distance is reduced, the elastic member is compressed and is laterally expanded to brought into intimate contact with walls of the injection groove to thus close an open end portion of the groove.

Abstract: A system of reinforcing a structural support such as a utility pole in situ includes applying a coating of a curable resin and wrapping a plurality of layers of a fiberglass fabric. The fiberglass fabric is applied in the form of elongated strips having longitudinal and weft fiberglass rovings. The fabric strips are spirally wrapped around the pole while applying a biasing shift to the fabric so that the weft threads are oriented axially to the support and the longitudinal threads extend helically around the support. An electrical resistance heating wire may be included between the wrappings of fiberglass to heat and accelerate curing of the resin.

Abstract: An injection plug device for injecting a concrete repairing agent into a concrete construction through an arcuate injection groove formed therein. The plug device includes a base member sealingly placed over an open end of the arcuate injection groove, a plurality of guide posts extending from the base member, an equal plurality of rod members extending through the guide posts, and engageable member selectively engageable with side walls of the arcuate injection groove by resilient deformation. The engageable members are provided at an inner end portion of the guide posts, or an external surface of the inner end portions of the guide posts. The engageable members have a width smaller than a width of the arcuate injection groove prior to their deformation and have another width larger than the width of the arcuate injection groove after their deformation to provide engagement with the side wall of the groove.

Abstract: A patching kit is provided for repairing holes of various kinds in the hollow walls of building components, such as doors and wallboard walls where the backside of the front walls are not readily accessible. The kit includes a backing plate of a stiff material of a size that can be inserted through the hole and sufficiently large to be positioned flat against the back surface of the front wall and cover substantially the entire area of the hole, forming a front recessed pocket to receive a suitable filler material. The peripheral area of the backing plate is coated with a suitable adhesive. The backing plate is firmly secured in position until the adhesive sets by a simple wedge means.

Abstract: A fluid storage tank made of a plurality of steel plates welded together is reinforced by winding a plurality of continuous, high tensile strength, non-metallic filaments around and in contact with the plates and applying a resin to the filaments to define a composite material of the filaments in a resin matrix. In one embodiment, substantially the entire exterior surface of the shell is covered by the composite material to form a reinforcing jacket. In another embodiment, the composite material is formed into a plurality of spaced reinforcing bands extending around the shell.

Abstract: An apparatus for taping joints between pieces of wallboard comprises a taping head, slidingly contactable with a wall, for substantially simultaneously applying a first layer of a joint compound to a joint between pieces of wallboard, embedding a wallboard tape in the first layer of the joint compound, and overcoating the embedded wallboard tape with at least one additional layer of the joint compound; a handle, connected to the taping head, for supporting the taping head, the handle being manually graspable by an operator, the handle having a fluid conduit formed therein for passing joint compound to the taping head; a tape supply mounted on the handle for supplying wallboard tape to the taping head; a backpack, wearable by the operator, for supporting a supply of the joint compound and for producing a pressurized stream of the joint compound; and a flexible connecting means for fluidically interconnecting the backpack and the fluid conduit to pass the pressurized stream of the joint compound from the backpa

Abstract: A rigid patch body for placing over and around a damaged portion (hole) of the external wall of a pressurized vessel, such as a space vehicle or habitat. The rigid patch body allows a person such as an astronaut to make temporary repairs to the pressurized vessel from the exterior of the vessel to enable more permanent repairs to be made from the interior of the vessel. The pressure wall patch of the present invention includes a floor surrounded by four side members. Each side member includes a threaded screw for anchoring the patch body to the external wall of the pressurized vessel and a recess in its lower surface for supporting an inflatable bladder for surrounding the damaged portion (hole) of the external wall to seal the area surrounding the damaged portion to allow the vessel to be repressurized. The floor of the rigid patch body supports a source of gas in communication with a gas supply valve and a gas supply gauge in communication with the gas supply valve and the inflatable bladder.

Abstract: A structure and method for repairing a damaged section in a sheetrock wall or ceiling comprising removal of the damaged section by cutting out a specifically-sized section of the wall surrounding the damaged section, providing a like-size, tight-fitting replacement section in the cutout area, providing a combination of fabric strips impregnated with an unactivated fast-setting plaster or cementitious material, providing a water-based glue, coating the edges of the replacement section and the cutout area with the water-based glue, activating the cementitious material, positioning fabric strips on the back side of the replacement patch with ends of the strips extending beyond each edge of the replacement patch, inserting the replacement section of sheetrock into the cutout area and manipulating it into flush alignment with the wall surface by manually gripping the patch assembly using the extended portions of the plaster impregnated strips, flattening the extended portions of the strips against the wall surface

Abstract: Apparatus for retaining a cover over a view port in a concrete block comprises a generally T-shaped bracket having a cross-arm and a support arm. The support arm extends generally perpendicularly from about a mid-point of the cross-arm. The cross-arm is generally longer than a width of the view port such that the cross-arm will not pass through the view port when the cross-arm is oriented in an operative position in alignment with the width of the port. A fastening area is formed on at least a portion of the support arm for passing through an aperture in the view port cover. A fastener is adjustably positionable on the fastening area for retaining the cover in compression against the block when the cross-arm is inserted in the view port in the operative position. The fastening area may be threaded for a wing nut or be adapted for receiving a push-nut.

Abstract: A structural element at least partially defining a void space is strengthened and stabilized by filling the void space with a structural foaming agent. The predetermined quantity of structural foaming agent used is such that it has the capacity to foam and expand, when unconfined, to a volume substantially greater than the volume of the void space. Bubbles created during the foaming of the structural foaming agent burst at the interface between deteriorated wood surrounding the void space to create a pulsing action which promotes impregnation of the deteriorated wood by the structural foaming agent.

Abstract: An apparatus and method for applying mortar, grout, bonding materials and caulk ("sealing material") into or between building components or materials includes a handheld power tool having or adapted to mount, a hopper receiving a supply of sealing material, an auger associated with the hopper selectively to convey the sealing material, and a nozzle adjacent the end of the auger to direct the sealing material to the point of application. The auger may have temporary auger extension(s) releasably and rotatably coupled thereto for conveying sealing material into voids, cracks or holes ("holes") in the building components or materials, with the temporary auger extension(s) being uncoupled and left in the filled holes as a central anchor or reinforcing member. When used with caulk, the apparatus is preferably adapted to have a disposable caulk container coupled to the assembly to replace the hopper and a removable and disposable plastic auger assembly to replace the steel auger.

Abstract: A wallboard adaptor bracket formed of sheet metal defining a plate with a central opening therein, holes in the bracket for receiving retaining screws, the holes having been formed by coining the material to form an opening and to form a collar around the opening on one surface of the sheet metal. The retaining screw holes and collar are so dimensioned as to hold the retaining screws perpendicular to the bracket.

Abstract: A reinforcing plate for reinforcing a doorjamb to prevent break-ins and particularly kick-ins of the door by unauthorized persons is mounted in back of the doorjamb in the space between the jamb and the door frame. In order to install the reinforcing plate behind the doorjamb, the interior trim strip is removed from the door frame and the reinforcing plate is mounted behind the doorjamb, preferably by the use of shims to temporarily jam the plate between the doorjamb and the door frame. While the reinforcing plate is temporarily secured by a wedging means against the back of the door frame, holes are drilled in the door frame and through the reinforcing plate using appropriately-sized drill bits. Self-tapping threaded screws are then passed through the doorjamb and screwed tightly into the reinforcing plate the attach the plate to the doorjamb and reinforce the jamb. As an alternative, special fastenings are provided to fasten the striker plate to the reinforcing plate.

Abstract: A method for applying an asphalt layer on a construction surface comprises the steps of placing an asphalt lattice having an admixture of fibrous and particulate matter onto the construction surface, and heating the lattice with a flame so as to melt the asphalt mixture causing it to flow over the surface and fill any depressions and cracks thereon. The asphalt layer thus formed is in intimate contact with the surface and can be used as waterproofing or as a primer layer for further applications of asphalt.

Abstract: Reinforced concrete columns wherein the exterior surface of the concrete column is wrapped with a composite reinforcement layer. The composite reinforcement layer includes at least one fabric layer which is located within a resin matrix. The fabric layer has first and second parallel selvedges which extend around the circumferential outer surface of the column in a direction substantially perpendicular to the column axis. Specific weave patterns are disclosed. The composite reinforcement layer provides a quick, simple and effective means for increasing the resistance of concrete columns to failure during the application of asymmetric loads.

Abstract: A laminate cover for sealing an opening in a weatherproof roofing membrane includes a top sheet of a weather resistant material, preferably an uncured butyl rubber EPDM material, and a complementary shaped and sized lower sheet of a lightly cured butyl rubber having opposed tacky surfaces. A layer of a flowable sealing material such as an uncured butyl rubber sealing compound having a smaller dimension than that of the lower sheet, is trapped between the lower sheet and a bottom release coated carrier. Upon removal of the carrier, the cover is pressed over the opening to be sealed and an exposed peripheral tacky area of the lower sheet secures the cover to the membrane and traps the sealing compound therein. Applied or ambient heat will cause the sealing compound to flow into the opening to effectively seal the same, and will vulcanize the top sheet to provide abrasion and weather resistance for the cover.

Abstract: A member adherably mounted to a shower wall to overlie broken and discolored portions contiguous when adjacent shower stall and bathtub valves and nozzles is provided, including a central planar mounting plate formed with a perimeter flange of a "U" shaped configuration, with a mounting flange positioned about the perimeter flange to accommodate caulking and water sealing compounds thereon. The patch member accordingly provides for a securable mounting arrangement that in a modified form utilizes various peel-away layers to provide various patterns to accommodate adjacent tile structure.

Abstract: A wall repair device is provided for aiding in the repair of a hole in a standard plasterboard wall. The device comprises a rigid mounting plate, a first hollow cylinder which forms a cavity, a second hollow cylinder disposed within the cavity of the first cylinder so as to be in telescoping relationship thereto, and an advancing structure for selectively drawing the second cylinder outwardly through the top portion of the first cylinder to a locked, extended position such that the device becomes self-supporting within the interior of the wall to be repaired, the mounting plate substantially covering a hole therein. A layer of plaster is then applied to fill the remainder of the hole, the mounting plate serving as a foundation for the plaster.

Abstract: The present invention relates to a filler injector for applying a filler to crevices in concrete surfaces. The injector has a transparent outer tube having scale markings thereon to indicate the pressure of any filler backing up from the surface and an adaptor connectable to a pressurized source of filler and screwed onto the outer tube. The injector also includes a check valve mounted in the adapter, an inner tube mounted inside a closed top of the outer tube and having a bore therein which can convey the filler from the adaptor to the surface, and a piston slidably mounted inside the outer tube and on the inner tube. The filler injector thus will not result in unwanted explosion, implosion, or skipping of a seam joint because of the pressure of the filler, and will provide a reading of the filling pressure on the concrete surface as the filler is being applied.

Abstract: A method of crack repair for building and paving material which lowers an existing surface (S) to a new working surface (W) which is low enough to effect repairs without changing the elevation or attitude of the original surface: which fills the crack (C) with grout (1) which is in turn sealed by a bridging material (2). An initial overlay material (3) is placed over the bridging material and a reinforcing strip (4) embedded in the overlay material followed by a second layer of overlay material (5) sufficient to return the repaired area to the elevation and attitude of the original surface.

Abstract: Novel methods and apparatus are disclosed by which squeaking floors are facilely, reliably and economically repaired by internal injection of glue or the like without the disassembly of floor components or substantial removal of a floor covering.

Abstract: A method for repairing eroded concrete rail ties. An abrasion resistant composition incorporating a curable binder is applied to the eroded rail seat and cured by the application of pressure and heat. A gas fired heating plate with a release surface is pressed onto the composition to force it into the eroded recess and cure it. The device incorporating the heating plate is clamped onto the rail clamp shoulders embedded in the concrete rail tie to enable pressure to be applied.

Abstract: An emergency flat roof repair method and material which can be used during rain storms in standing water which involves the spreading of a sealer composed of sodium bentonite particles over the leak by hand or spreader. On contact with water the sealer expands and gravitates to the leak almost instantly plugging the same.

Abstract: The invention discloses a method of repairing cracks, which is characterized in that, in injecting a repairing agent such as resin or the like into cracks occurring in an object to be repaired such as concrete, a masonry joint or the like, injection pressure of the repairing agent gradually increases after start-up of injection of the repairing agent and, further, the injection pressure is maintained substantially constant for a predetermined period of time after the injection pressure has reached a predetermined pressure, whereby the repairing agent is sufficiently spread into the cracks. Furthermore, the invention discloses a method of repairing cracks, in which the crack cavities are evacuated simultaneously with injection of the repairing agent, whereby the repairing agent is filled up in the cracks further efficiently.

Abstract: A kit for repairing a hole and providing a more substantial mounting for a support device, as in a panel of hollow construction such as room partitions, includes a thin sheet of material which is cut to form a plate slightly larger than the size of the hole after it has been cut for mounting. The panel has a center hole and two slots separated and horizontal to such hole and on either side of said center hole, two fairly rigid rounded wires with resilient legs with feet at adjacent ends, has its legs slightly spread apart and the feet inserted through the slots with the feet resting on the rear of the panel. An extruded washer with eight evenly spaced splits is mounted on the rear of the panel by means of three rivets aligning the washer hole evenly with the center hole of the panel. A shaft is then inserted into the center panel hole and through the aligned washer hole and then pushed inwardly.

Abstract: Metal reinforcing members (3) are attached by bonding to a surface in the tension zone (1a) of a concrete structure component (1) for reinforcing the component. To prevent the ends of the reinforcing members (3) from separating from the structural component (1) when the component is subjected to load, attachment elements (4) clamp the ends of the reinforcing members against the surface of the component in addition to the bonding action. The attachment elements (4) apply such high compressive forces to the structural component, so that potentially damaging tension and shear forces can not be effective.

Abstract: A plug for sealing holes in a building structure to prevent seepage of water and vapor after chemical treatment of the building structure comprising an outer flexible sealing cap movable between a sealed and unsealed position deformable from a substantially concave configuration when in the unsealed position to a substantially flat configuration when in the sealed position such that the lower surface of the outer flexible sealing cap engages the surface of the building structure adjacent the periphery of the hole when in the sealed position to seal the hole and a pair of flexible anchoring members to be disposed in the hole to engage the inner wall for the hole to anchor the plug therein to retain the outer flexible sealing cap in the sealed position.

Abstract: An injection packer for injecting a synthetic resin into cracks in concrete has an elongate plastic body having a longitudinal injection channel, an injection nipple arranged at the rear end of the plastic body and communicating with the injection channel, and a sealing cuff made of a plastic material which is softer than a material the plastic body is made of, and fitted in a positive inter-engagement manner around the front end of the plastic body.

Abstract: This invention provides a method for repair for poles which have been damaged by environmental effects, which is easily transportable, simple to install, and easily adaptable to many classes of poles. The method involves excavating around the pole, cleaning the surface of the pole, pumping a fumigant into the pole, applying a bonding agent to the clean surface, and then applying strips of a composite fiberglass mat and resin to the pole in a controlled manner until a desired casement thickness has been achieved. The repair is completed by application of an ultraviolet resistant coating to the pole.