Abstract: A windshield repair injector, to repair star, bulls-eye and elongated cracks in a laminated windshield. The device has a stepped threaded section for easy removal and installation. When the injector is placed against a glass surface, upward motion of a piston provides a vacuum in the piston chamber for removing moisture trapped in the damage region. Afterwards insertion of an optically clear resin, with an optical coefficient equal to glass is inserted under pressure, creating a permanent and virtually invisible repair.

Abstract: A method of repairing a crack in a windshield where the crack has an open portion in which the repair resin selected for use is at minimum specified at 200 c.p.s.; and in another embodiment has a maximum of 1,000 c.p.s. and in another embodiment has a viscosity of over 1,000 c.p.s.

Abstract: A windshield repair apparatus includes a bridge for holding an injector adjacent to a break area of a windshield. The bridge includes a suction cup for mounting the bridge to the windshield. The bridge includes a pivotally mounted arm which allows for pivotal movement of the injector away from the break area, and a registration system which allows for accurate replacement of the injector over the break area following pivotal movement back toward the break area. A ball plunger and detent mounting arrangement between the pivotally mounted arm and a remainder of the bridge allows for registration. The suction cup includes a vacuum pump for withdrawing air from beneath the suction cup. The injector includes a clip securing a stopper to a body of the injector. The stopper includes a peripheral lip seal at a first end of the stopper which is received by the body. The arm also is pivotally moveable toward and away from the windshield and is controlled by a threaded adjustment mechanism.

Abstract: The present invention includes an apparatus and method for in situ repair of damaged bearing surfaces of shafts or journals. The apparatus consists of a bracket assembly supporting a forming material axially aligned with and sized to the damaged shaft or journal. The former stock is self-sizing to the diameter of the damaged shaft or journal encountered. After cure of the repair material used with the invention, a new surface is created, which is then ready to accept a replacement bearing. The apparatus is reusable for subsequent repair needs.

Abstract: In the repair of breaks in glass with a syringe to accumulate vacuum and pressure, an improved flow regulator is engaged to protect against the contamination of the tubing, syringe and the valve.

Abstract: The present invention is used for making repairs to a laminated glass having a layer with a damaged area. A drill and bit are used to make a drilled hole at the damaged area of the glass. A large vacuum cup which is standard for handling large sections of glass is attached to the glass and the pump and handle of the cup is used to support a bridge with a swivel nut in position to receive an injector. The injector is connected to a hand pump which is first operated to clear the window of debris by providing a high vacuum pressure. The hand pump is also used to evacuate air from the injector before a repair resin is injected into the drilled hole at the damaged area. The hand pump has a mode valve to produce a pressurizing cycle to provide an injection pressure of 30 to 35 psi. The high injection pressure forces the resin into the drilled hole to penetrate the damaged area and repair the glass.

Abstract: A windshield repair apparatus includes a fixture for holding an injector wherein the fixture includes plastic legs for slideably engaging a windshield during sliding movement of the fixture. A suction cup mechanism enables selective mounting of the apparatus to the windshield. The suction cup mechanism selectively positions the suction cup so as to not interfere with sliding movement of the windshield repair apparatus across the windshield, and allows for deployment of the suction cup against the windshield at the desired time. The fixture has a engagement surfaces for the user's hand during handling of the windshield repair apparatus.

Abstract: A method of repairing windshields which are below room temperature, in the range from about 65.degree. F. to about 40.degree. F. repaired by using a resin whose viscosity ranges from a high end of a range of about 700 c.p.s. to about 400 c.p.s. to a low end of a range of about 150 c.p.s. Also, when the windshield is below about 40.degree. F., the method uses a first low viscosity resin of 10-100 c.p.s. and a second resin from about 150 c.p.s. to about 700 c.p.s. Also, when the crack is a floater, the resin is in the range from about 100 c.p.s. to about 90 c.p.s. and is heated prior to or during injection into the crack.

Abstract: A windshield repair apparatus and method includes a fixture for holding an injector wherein the fixture includes plastic legs for slideably engaging a windshield during sliding movement of the fixture. A suction cup mechanism enables selective mounting of the apparatus to the windshield. The suction cup mechanism selectively positions the suction cup so as to not interfere with sliding movement of the windshield repair apparatus across the windshield, and allows for deployment of the suction cup against the windshield at the desired time. The fixture has engagement surfaces for the user's hand during handling of the windshield repair apparatus.

Abstract: A method and apparatus for repairing dimpled or cracked windshields is set forth. One portion of apparatus utilizes a suction cup, a laterally extending support member, three adjustable legs to level the support member approximately parallel to the windshield, and a threaded housing in inserted therethrough to bear against the windshield. The housing incorporates a plunger which operates as a syringe to inject a fluid resin for repair. On the opposite face, a set of suction cups holds a support member so that the end face of a bolt can be moved against the windshield to slightly bow the back side of the damaged area. The repair procedure includes the optional step of drilling into the dimple or crack, bowing from the back side, injection under pressure wherein the injection step is through an O-ring seal.

Abstract: A windshield repair apparatus includes a bridge for holding an injector adjacent to a break area of a windshield. The bridge includes a suction cup for mounting the bridge to the windshield. The bridge includes a pivotally mounted arm which allows for pivotal movement of the injector away from the break area, and a registration system which allows for accurate replacement of the injector over the break area following pivotal movement back toward the break area. A ball plunger and detent mounting arrangement between the pivotally mounted arm and a remainder of the bridge allows for registration. The suction cup includes a vacuum pump for withdrawing air from beneath the suction cup. The injector includes a clip securing a stopper to a body of the injector. The stopper includes a peripheral lip seal at a first end of the stopper which is received by the body.

Abstract: An injection plug device for injecting concrete repairing agent into a concrete structure and a connector to be connected to such an injection plug device are provided. The injection plug device has a small diameter, a simple structure, and low manufacturing cost to be appropriate to be used as a disposable device.

Abstract: A windshield repair apparatus and method wherein a quick connect/disconnect bayonet mounting arrangement mounts an injector to a support apparatus which holds the injector relative to a windshield for repair. A ramp surface may be provided with respect to the bayonet mounting arrangement for selective adjustment of the position of the injector relative to the support apparatus. A rubber stopper with two passages is provided with the injector, one passage central to the stopper for receipt of a mechanical probe, and one passage offset from the central passage for receipt of pressures greater than or less than atmospheric pressure during use.

Abstract: A system for repairing damaged glass including a vacuum powered anchor for securing the damage repair system to a surface of a damaged piece of glass proximate to a flaw in the glass surface. Included is an evacuating enclosure coupled to the anchor, the couplement providing a means by which the enclosure is fixable relative to the anchor. A common vacuum source is selectively communicatable with the anchor and the enclosure so that vacuum pressure may be selectively applied in any combination to the anchor and the enclosure. A resin applicator is also included for depositing resin into the flaw. Also included is a repair device for a cracked piece of glass. The repair device includes at least one anchor for securing the device to a surface of the flawed piece of glass opposite the crack opening.

Abstract: There is provided a suction system for use in a method of lining the internal surface of a pipe, said suction system comprises a pig receiving device to be attached to an open end of the pipe, a liquid receiving tank connected with the pig receiving device, and a suction pump connected with the liquid receiving tank. Further, a pig detecting device for detecting the passing of a pig is provided between the open end of the pipe and the pig receiving device, a suction force controlling device is provided between the pig receiving device and the liquid receiving tank, and a gas-liquid separation apparatus is provided between the liquid receiving tank and the suction pump.

Abstract: A process for extruding a mixture of thermoplastic and ground whole tire waste, in which the mixture is extruded through a die to form an extrudate, with the extrudate subsequently cooled by directing a cooling gas toward the extrudate top, bottom and sides from a multiplicity of gas jets positioned around the periphery of the extrudate. In addition to an extruder, the apparatus includes a multiplicity of gas jets adjacent the extruder, positioned to direct a cooling gas toward the extrudate top, bottom and sides.

Abstract: Windshield repair tool has an injector for injecting liquid resin into fractures and pits in broken windshields. The injector has an injector cylinder and a plunger that applies pressure to resin in the cylinder for injecting the resin into the fracture or pit. The plunger itself includes an outer sleeve and an inner plunger component biased forwardly in the outer sleeve by a coil spring. The pressure on the resin is monitored and can be controlled according to the amount that the plunger stem projects from the outer end of the plunger sleeve. This avoids insufficient or excessive filling of the fracture or pit.

Abstract: A windshield repair apparatus and method are provided wherein a quick connect/disconnect bayonet mounting arrangement mounts an injector to a support apparatus which holds the injector relative to a windshield for repair. A ramp surface may be provided with respect to the bayonet mounting arrangement for selective adjustment of the position of the injector relative to the support apparatus. A rubber stopper with two passages is provided with the injector, one passage central to the stopper for receipt of a mechanical probe, and one passage offset from the central passage for receipt of pressures greater than or less than atmospheric pressure during use.

Abstract: A windshield repair apparatus includes a fixture for holding an injector wherein the fixture includes plastic legs for slideably engaging a windshield during sliding movement of the fixture. A suction cup mechanism enables selective mounting of the apparatus to the windshield. The suction cup mechanism selectively positions the suction cup so as to not interfere with sliding movement of the windshield repair apparatus across the windshield, and allows for deployment of the suction cup against the windshield at the desired time. The fixture has a engagement surfaces for the user's hand during handling of the windshield repair apparatus.

Abstract: In a system for repairing a resin-impregnated article having one or more dry spots or resin-depleted areas. A mold release is used to coat all surfaces of the defective article, except for the resin-depleted areas and a border area surrounding and contiguous to each resin-depleted area. The coated article is then placed within a mold cavity defined by a two-piece mold and corresponding in shape and size to the article. A plurality of shims are interposed in the parting line between the two halves of the mold, creating a first gap within the parting line and a second gap between the surfaces of the article and the walls defining the mold cavity. A gasket is also seated between the two halves of the mold to seal the mold cavity, and a vacuum pump is coupled to the mold cavity to evacuate the cavity to a negative pressure.

Abstract: In order to provide a joint connection, comprising a first joining piece with a first contact surface and a passage opening onto the first contact surface, and a second joining piece with a second contact surface and a recess opening onto the second contact surface, said first joining piece and second joining piece standing in a joining position in relation to one another, in which the contact surfaces abut one another and the passage and the recess together form a cavity, for joining pieces made from brittle materials it is proposed that a positive-locking element is disposed in the cavity; that the positive-locking element comprises a plastically inserted molding, which is cured in the cavity and abuts the joining pieces over their surface; that together with the first joining piece and the second joining piece, the positive-locking element forms a positive locking which secures the first joining piece and the second joining piece relative to one another in at least one direction of stress along the contact

Abstract: A convertible repair device arranged to repair bulls-eye type cracks and elongate cracks in a laminated glass. The device has a stepped housing that has a large cylinder and a small cylinder. A piston is mounted in the housing and is movable in the cylinders. A mouth formed in the small cylinder is arranged to receive the filler material. The device is arranged to withdraw air from the bulls-eye type crack by moving the piston upward. When the air is withdrawn the piston is moved downward and the filler material flows into the crack. The piston has a thread form on its upper portion and a plunger projected into the thread form provides controlled movement of the piston without imparting a force on the surface of the laminated glass which is beneficial for filling elongate cracks.

Abstract: A windshield repair device including a base, several sucking disks connected with the base by several connecting rods, a pressurizing tank, a rotary bar and a plug block. The base is formed with a central axial thread hole and the pressurizing tank has a thread rod at one end for screwing into the thread hole of the base. The pressurizing tank further has an inner thread at a central section for engaging with an outer thread of the rotary bar. The plug block is plugged into a central hole of a bottom end of the pressurizing tank. When a repair liquid is filled into the pressurizing tank, the rotary bar is twisted downward in the pressurizing tank and a bottom end of the rotary bar is extended into a central hole of the plug block to compress the air therein, whereby the pressure of the air forces the repair liquid to evenly flow into every corners of the fissure.

Abstract: A windshield repair apparatus and method are provided wherein a quick connect/disconnect bayonet mounting arrangement mounts an injector to a support apparatus which holds the injector relative to a windshield for repair. A ramp surface may be provided with respect to the bayonet mounting arrangement for selective adjustment of the position of the injector relative to the support apparatus. A rubber stopper with two passages is provided with the injector, one passage central to the stopper for receipt of a mechanical probe, and one passage offset from the central passage for receipt of pressures greater than or less than atmospheric pressure during use.

Abstract: An appratus including a support structure which carries a positioning device having a valve positionable into contact with a damaged windshield. The valve includes a chamber for a repair liquid and passageways for the liquid and for the removal of air from the windshield damage area. A ball element of the valve is controlled by a hand held magnet and when unseated releases the liquid into a valve outlet defined by an O-ring seal. A hand pump with a lockable piston evacuates the valve and the damage site and subsequently opens to pressurize the site. A positionable mirror provides direct viewing and also a reflected image of the repair operation. A modified support structure permits repairs in curved and marginal areas of the windshield.

Abstract: A method of repairing a crack in a windshield where the crack has a surfaced portion repair resin of a first viscosity is applied to the crack and then a second higher viscosity repair resin is applied over the same portion of the crack. In an alternative method where the crack has an unsurfaced or tight portion, two injectors are used to fill that portion with a lower viscosity resin.

Abstract: Underground pipelines that carry wastewater, water, natural gas, and industrial fluids deteriorate with age. This invention is a process and apparatus for installing a thermoplastic liner in a dry pipeline to accomplish in situ rehabilitation. It involves extruding a tube of thermoplastic liner material within the interior of a dried and preheated pipeline in situ, said tube having an outside diameter smaller than the inside diameter of said pipeline. The tube is next expanded so that the outside diameter of said tube is substantially equal to the inside diameter of said pipeline. The expanded tube is then cooled and hardened in a liner configuration.

Abstract: In a method and system for repairing a resin-impregnated article having one or more dry spots or resin-depleted areas, a mold release is used to coat all surfaces of the defective article, except for the resin-depleted areas and a border area surrounding and contiguous to each resin-depleted area. The coated article is then placed within a mold cavity defined by a two-piece mold and corresponding in shape and size to the article. A plurality of shims are interposed in the parting line between the two halves of the mold, creating a first gap within the parting line and a second gap between the surfaces of the article and the walls defining the mold cavity. A gasket is also seated between the two halves of the mold to seal the mold cavity, and a vacuum pump is coupled to the mold cavity to evacuate the cavity to a negative pressure.

Abstract: Portable self-contained apparatus for repairing a glass windshield by filling a damaged area with a repair material. An injector nozzle having a reservoir for holding an uncured liquid repair material is sealed over the damaged area of the windshield by vacuum cups. The reservoir is automatically supplied with timed alternating vacuum and positive precision controlled pressures from a fluid pressure device controlled by preprogrammed computer circuitry which is responsive to conditions of timing controls and of sensor controls for measuring and regulating the amounts and durations of the vacuum and positive pressures applied to the reservoir.

Abstract: For use in windshield repair; a kit of tool parts which can be assembled into a variety of different tools. An injector for dispensing resin into breaks and cracks in a windshield. A method of repairing a windshield.

Abstract: A windshield repair apparatus and method are provided wherein a quick connect/disconnect bayonet mounting arrangement mounts an injector to a support apparatus which holds the injector relative to a windshield for repair. A ramp surface may be provided with respect to the bayonet mounting arrangement for selective adjustment of the position of the injector relative to the support apparatus. A rubber stopper with two passages is provided with the injector, one passage central to the stopper for receipt of a mechanical probe, and one passage offset from the central passage for receipt of pressures greater than or less than atmospheric pressure during use.

Abstract: A device for repairing cast iron pipe joints comprises a head having a motor for actuating a tool and a body, the head being pivotally connected to the body so that it can be pivoted from an axial position to a radial position within the pipe. In a preferred embodiment, the head includes a motor driving a drill bit. A retractable foot is extended to force the head against the pipe wall to be pierced by the drill bit, following which sealant is injected into a hollow drill shaft and flows up the helical grooves of the drill bit into the pipe joint cavity. Preferably a pair of guide wings maintains the device centered in the pipe and raised off of the pipe floor, and the operator monitors progress of the device through a video monitor.

Abstract: A method of repairing a crack in a windshield where the crack has a surfaced portion in which a repair resin of a first viscosity is applied to surfaced portions of the crack and then a second higher viscosity repair resin is injected over the same portion of the crack. In an alternative method where the crack has an unsurfaced, or tight portion, two injectors are used to fill that portion with a lower viscosity resin, one placed at the end of the crack and the other near the transition from the unsurfaced to the surfaced portion.

Abstract: A kit (150) of parts from which tools may be assembled for the repair of glass cracks by insertion of resin having an index of refraction substantially that of the glass. The tools are a repair bridge (160) and a repair bar (180) which may be placed on an automobile windshield and used to inject resin into a glass crack and a crack spreader (170) which may be placed on the inside of a windshield and used to spread the crack to facilitate entry of the resin. Methods of use of the tools are disclosed.

Abstract: A method of repairing a crack in a windshield where the crack has an open portion in which the repair resin selected for use is at minimum specified at 200 c.p.s.; and in another embodiment has a maximum of 1,000 c.p.s. and in another embodiment has a viscosity of over 1,000 c.p.s.

Abstract: A projecting construction apparatus for a molten-metal-discharging hole includes a rotating shaft and an impeller rotatably supported by the end of the rotating shaft. The impeller has vanes radially disposed and is open to fluid flow in a generally axial direction, such that gas flowing axially toward the impeller can pass substantially axially through the impeller without being deflected against a wall of the hole, while liquid and solid material are deflected by the vanes against the wall of the hole. At least two material-supplying pipes are located around the rotating shaft, and are connected to supply projection material entrained in a fluid to the impeller, and have ejection ports generally equi-angularly disposed about the shaft axis. The ejection ports are directed toward the vanes, and a plurality of control valves are connected to respective ones of the pipes so as to control an amount of the projection material which is supplied to each of the pipes.

Abstract: A resin extruder for supplying resin to flaws in laminated glass includes a casing forming a resin reservoir from which resin is dispensed through a nozzle by screwing inward a ram partially received in the casing and carrying a pressure gauge communicating with the reservoir.

Abstract: A kit and method for the repair of broken plastic light bulb housings for automobiles is provided to repair through the plastic. The kit and method enables a repair to include a bead overriding the surface of the repair. The bead extends beyond the periphery of the break obscures the outline of the break and strengthens the repair. A simple mold is provided or formed from a selected gasket and cover provided.

Abstract: A device for repairing laminated glass by inserting a liquid, curable resin into the fracture in the glass. An absorbent material is attached to the bottom of a suction cup. When it is desired to commence a repair, several drops of the resin are placed in the absorbent material. The suction cup is then positioned over the fracture such that the absorbent material is aligned with the center of the damage. Then the center of the suction cup is depressed toward the glass until resin flows from the absorbent material. To expedite the repair process, the vacuum between the suction cup and the glass may be intensified by pulling the center of the suction cup farther from the glass without detaching the edge of the suction cup; the center is maintained at this distant location for several seconds before being returned to its original position; and the pulling and returning is repeated several times. This process may be facilitated by attaching a handle to the top of the suction cup.

Abstract: Apparatus and method for repairing breaks in glass bodies such as car windshields. A position indicator is used in conjunction with a repair bridge for precisely locating the break to be repaired. A conventional resin injector can be used in the slot taken by the position indicator once the position indicator has been used and removed from the bridge. Realignment or further adjustment of the bridge can thereby be avoided making the repair process more efficient.

Abstract: An impeller as used in a projecting construction apparatus for a concave section of a molten-metal-discharging hole is supported on a rotating shaft for redirecting flow of impinging projection material. The impeller includes a plurality of vanes which are attached to the rotating shaft with a specified twisting angle relative to the rotating shaft. A material supplying pipe is directed upon the plurality of vanes, so that, upon impingement of the projection material upon the plurality of vanes, the projection material is projected outwardly and in a direction nearly opposite to the predetermined direction of impingement of the projection material supplied through the material-supplying pipe.

Abstract: Apparatus for windshield glass repair is provided. A cylinder having internal chambers is equipped with a piston head plunger at a top end and has a mounting device at a bottom end for securing a tight seal over a crack in a windshield. The withdrawal of the plunger creates a vacuum and allows for air to be pulled out of the crack, while a side stem in communication with the cylinder allows resin filler material to be introduced and forced into the crack. Air pressure is equalized by opening the side stem, whereupon the plunger can be depressed to force the resin filler into the crack. The mounting supports allow for quick connect and disconnect of the cylinder. The side stem obviates the necessity of removing the cylinder for re-filling of resin material whereby any length crack can be repaired without breaking the tight seal on the crack.

Abstract: A method of repairing cracks in brick walls by drilling spaced apart injection ports into the crack. Verification ports are drilled generally in alignment with the injection ports on each side of the crack. The wall is saturated with water and grout is injected into the injection ports until a limiting pressure is reached or until grout begins to flow from the verification ports. An apparatus for repairing cracked brick walls includes a grout delivery tube having a nozzle and an expandable sleeve to seal to the tube within injection ports. Valves and a grout circulation loop control the injection of grout from the delivery tube.

Abstract: A mold or molds are provided to repair a substantially conical break in plate glass. The mold enables a repair to include a bead overriding the surface of the glass, particularly on the wider side of the break, providing an effective repair. The bead extending beyond the periphery of the break obscures the outline of the break.

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: An apparatus for repairing cracks in a windshield is provided. The apparatus includes a mounting bracket having a plurality of arms. Each arm has a suction cup attached to it for securing the mounting bracket to the windshield to be repaired. One suction cup will be removable for attachment at a second location on its corresponding arm. An injector tube will be attached to the mounting bracket and extend through an aperture in the center of the mounting bracket. When it is desired to repair cracks near the periphery of the windshield, the removable suction cup will be attached to its second location and the injector tube will be attached to the suction cups original location.

Abstract: A method for repairing voids in a finished urethane foam product having a typical backing insert or retainer wall, the method including the steps of forming a hole through the retainer wall adjacent the void; inserting a small elastomeric sheath through the hole into the void; injecting a urethane or silicone elastomer into the sheath to fill same to conform to the void; and sealing off the hole with a suitable plug which may be sanded flush with the retainer wall outer surface.

Abstract: A kit (150) of parts from which tools may be assembled for the repair of glass cracks by insertion of resin having an index of refraction substantially that of the glass. The tools are a repair bridge (160) and a repair bar (180) which may be placed on an automobile windshield and used to inject resin into a glass crack and a crack spreader (170) which may be placed on the inside of a windshield and used to spread the crack to facilitate entry of the resin. Methods of use of the tools are disclosed.

Abstract: Underground pipelines that carry wastewater water, natural gas and industrial fluids deteriorate with age. Shown is a process and apparatus for installing a thermoplastic liner in such existing pipelines to accomplish in situ rehabilitation. It involves extruding a tube of thermoplastic liner material within the interior of a pipeline in situ, said tube having an outside diameter smaller than the inside diameter of said pipeline. The tube is next expanded so that the outside diameter of said tube is essentially equal to the inside diameter of said pipeline. The expanded tube is then cooled and hardened in a liner configuration.

Abstract: An apparatus and method for repairing cracks and chips in automobile windshields provides two or more injectors mounted on a bridge element that heats repair chemical prior to inserting the repair chemical into at least two holes or chips in the windshield and a crack between the two chips, and also heats the windshield prior to inserting the repair chemical into the chips and crack.