Abstract: An improved metering apparatus is provided for use with a foam dispenser that disperses beads of foam after mixing streams of two foam components together. The dispenser has a pair of seal passages formed in a body portion of the dispenser and a spool valve rotated mounted in the body portion. The spool valve has a pair of flow passages formed in it that can be rotated into mating alignment with the seal passages formed in the dispenser body. The spool valve flow passages have circular cross-sections while the seal passages have non-circular cross-sections, and preferably triangular cross-sections.

Abstract: This embodiment relates generally to a foam dispensing system, and more particularly to an automated monitoring and diagnostic system for use with foam dispensing systems that permits remote control of the dispensing of foam. A control console is provided that is interconnected, preferably by way of a high-speed data link, with a foam dispenser, the A and B foam component pumps, a power source and controller, and a gateway. The console preferably includes a plurality of individual control circuits, typically disposed within one or more integrated circuits. The console may instead, or additionally, include software to perform some or all of the data exchange functions. The control circuits and/or software are preferably disposed within modules that are mounted to various components of the system. The modules may include one or more sensors operatively connected to the controller that monitor and record operational parameters.

Abstract: A carton for a foam dispensing system which includes supply containers, a dispenser and hoses for connecting each container to the dispenser. The carton includes first and second face panels which are interconnected by respective first and second side panels. Bottom panels extend from the first and second face panels to define a bottom of the carton. The cover panel extends from the first face panel to define a cover of the carton. A first flap which is defined in the cover panel, which, in an open position, is disposed at an angle to the cover panel. A handle is connected to the containers for carrying the carton and projects through the first access opening. A second flap is defined in the second face panel and the first reinforcing element. A third flap is defined in the second flap. The hoses extend from the containers, through hose paths associated with the second flap to the dispenser.

Abstract: A kit of parts useful for sealing a crack in a concrete surface by injecting a sealing material into the crack including a plurality of injection port members and deformable metal crimping sleeves. Each injection port member has a flat base which is attached to the concrete surface by a settable adhesive compound. A disposable, aerosol-charged, supply container having a one-component polyurethane prepolymer without any granular material entrained therein.

Abstract: A dispenser for mixing together multiple fluids, such as foam components and dispensing the mixed fluids includes a body portion of the dispenser with fluid entrances and an exit. A handle extends from the body portion to facilitate grasping and operation by a user. A flow control valve is positioned in the body portion for controlling flow of foam components entering the dispenser mixing chamber. The trigger is movably mounted to the body portion in opposition to and spaced apart from the handle. A safety for preventing unintended operation of the dispenser is movably mounted to and extends lengthwise of the trigger that is always biased into a safety position. The safety has an arm for preventing movement of the trigger sufficient to cause unintended operation of the flow control valve, and the safety may be disengaged by the same single-handed action used to actuate the dispenser to dispense the mixed fluids.

Abstract: A method for filling cracks in concrete surfaces using a one-component, hydrophilic polyurethane prepolymer without the addition of any granular impregnating agents The prepolymer is provided in a hand-held aerosol container and is injected into the cracks through hollow injection ports that are adhered in place on the surfaces over the cracks and subsequently closed off when filled. The crack is filled from the bottom up to prevent the formation of air pockets in the crack.

Abstract: An improved fluent product dispensing apparatus is disclosed and includes a temperature indicator so that the user may view the temperature of the fluent product components prior to and during dispensing. The apparatus includes one or more supply containers of a reactive component, a dispenser and a conduit for conveying the reactive components to the dispenser. One or more of the supply containers has a temperature indicator mounted to its exterior that is viewable through a package, or carton, that encloses the supply containers. This indicator displays the temperature of the contents of the supply container so that a user can ensure proper dispensing of the reactive components.

Abstract: An adapter for a testing too for use in the testing of shear strength of an adhesive as applied to a test specimen has a structure that permits it to be used on testing machines either in a tension or in a compression mode. The testing tool includes a pair of coacting force blocks which slidably engage each other and move, relative to each other. Each such force block has a central opening into which a test specimen may be inserted. The openings in each of the force blocks engage a different one of the two test coupons that make up a testing specimen. The force blocks further have bearing surfaces that oppose each other so that they may engage the like opposing ends of the test specimen.

Abstract: A composition comprising a vinyl acetate acrylic copolymer or a carboxylated acrylic copolymer with or without additional latices, about 1 to 6 parts of a non-ionic surfactant, from 0 to 4 parts of a coalescing agent and from 0 to 5 parts of a co-surfactant, with about 15 to 100 parts of starch, and a propellant in the amount of from about 2% to 10% by weight of the entire composition. The composition is preferably contained under pressure in an aerosol can.

Abstract: An improved fluent product dispensing apparatus is disclosed and includes a temperature indicator so that the user may view the temperature of the fluent product components prior to and during dispensing. The apparatus includes one or more supply containers of a reactive component, a dispenser and a conduit for conveying the reactive components to the dispenser. One or more of the supply containers has a temperature indicator mounted to its exterior that is viewable through a package, or carton, that encloses the supply containers. This indicator displays the temperature of the contents of the supply container so that a user can ensure proper dispensing of the reactive components.

Abstract: A dispensing gun for fluent products such as viscous adhesives and sealants. The gun includes a removably mounted nozzle and fittings for attachment to a product source such as a can or a hose. A valve body has product inlet and outlet passages with flow being controlled therethrough by a valve that includes a nose portion seated in the valve body, and a rod that extends through the nose portion of the valve and seats on tapered surfaces inside the end of the nozzle. The valve contains a shrouded internal spring biasing the valve to a closed position. A trigger engages the yoke carrying the valve and the valving rod and moves the yoke so that the rod and valve move between open, closed and intermediate positions. In one preferred form, the valving rod may be adjusted between positions wherein more or less product is dispensed in response to full trigger movement.

Abstract: An anti-crossover nozzle with two principle pieces that snap together, having a forward end portion with a dispensing opening, a rear end portion which includes at least a pair of inlets. Each inlet has a center passage, therethrough and at least two valve leaflets biased by their own inherent resiliency to a normally closed position covering openings in the passages. There is at least one point of attachment formed between an interior surface of the rear end portion and the valve leaflets. The leaflets are displaced from their normally closed position by the force of incoming liquid foam components.

Abstract: A composition of a vinyl acetate acrylic copolymer or a carboxylated acrylic copolymer with or without additional latices, about 1 to 6 parts of a non-ionic surfactant, from 0 to 4 parts of a coalescing agent and from 0 to 5 parts of a co-surfactant, with about 15 to 100 parts of starch. A propellant is from about 2% to 10% by weight of the entire composition, and the composition is contained in an aerosol can. A method is also described.

Abstract: A spool valve and cooperating housing with a particular shape. A portion of the housing has a relatively thin sidewall and it includes an integrally formed stub cylindrical wall portion. A cooperating cylindrical force-applying element is present which deforms the thin wall portion into snug sealing contact with the portion of the valve spool lying adjacent thereto.

Abstract: A dispenser for holding two or more cans of material adapted to create a froth, a caulking or like product. The holders of the cans contain separate attachments for engaging the containers and holding them in a position of use. This insures that the cans cannot be inserted the wrong way into the dispenser. In a preferred form, the dispenser includes two can holders, a manifold, a dispensing gun and a receiver for a disposable nozzle. The two can holder fittings are respectively male/female, and in another embodiment, left hand/right hand threads.

Abstract: A solventless, flushless hand held impingement mixing and dispensing gun for dispensing controlled quantities of a controlled thermal insulation grade reactive chemical foam composition is provided. The dispenser gun preferably includes a unitary socket member mounted to the gun body having a receptacle portion for receiving an extended service life impingement mixing and dispensing module. A converter subassembly is provided to convert variable pressure and flow rate streams of the chemical components into regulated controlled pressure metered flow rate chemical component flows for introduction to the opposed sides of the impingement mixing dispenser gun.

Abstract: A new and improved foam dispenser gun comprises in combination a gun body, a mountable dispenser moldule and an air cylinder actuator assembly. The dispenser module includes a dispenser housing and a valving insert received therein having a stepped outer configuration. The insert includes a forward minor diameter portion having a diametrical dimension slightly less than that of the housing passageway. The rearward major diameter portion of the insert is designed for press-fit engagement in the housing passageway. The clearance provided between the forward end of the housing passageway and the forward minor diameter portion of the insert, in accordance with the present invention, permits relaxation of the insert member in a controlled manner in use which reduces or eliminates the buildup of residual stresses on the insert member which are believed to be responsible for cold flow deformations of the insert.

Abstract: A handle for a tool the operation of which requires frequent repetitive motions of a hand or arm of a user includes a substantially flat upper surface disposed at an angle of about 70-90 degrees to a longitudinal axis of the handle, and is characterized by an asymmetrical cross-sectional profile with respect to said longitudinal axis. The upper surface of the handle is disposed between convex portions on each side of the surface over which the plams and fingers of the user are curved.The handle is useful for tools for stressful tasks such as for a handle of a squeegee for spreading fluid on a surface of a silkscreen during printing. When the device is used as intended with the wrists substantially straight, the squeegee blade is held at an appropriate angle for silkscreen printing. Carpal tunnel injuries are generally avoided.