Abstract: The one-piece foamer nozzle comprises an inner cap portion, an outer barrel portion, and an internal wall inside the nozzle between the cap portion and the barrel portion. The internal wall has a central orifice therethrough. The cap portion has a cavity and structure in the cavity for receiving and mating with a nose bushing mounted to the front end of a trigger sprayer. The structure has passageways adapted to register with passageways on the nose bushing when the nozzle is rotated to a predetermined position on the nose bushing to direct liquid in a swirl whereby a conical spray exits the central orifice when the trigger sprayer is operated. The outer barrel portion has an inner, generally cylindrical, wall surface. The nozzle further has a short annular formation coaxial with the orifice and fixed to and extending outwardly from the internal wall around the orifice.

Abstract: A trigger operated fluid dispensing device for mounting to a container comprising: a body having a front end including opposed side walls at the front end, a nose bushing extending from the front end between the body side walls and at least one, elongate, nozzle cap blocking member which extends from the body front end and which is adapted to engage and prevent rotation of a nozzle cap upon rotation of the cap without manipulation of the body side walls; a nozzle assembly at the body front end including the nose bushing, a nozzle cap received on the nose busing and cooperating structure on or in the nozzle cap and on or in the nose bushing for selectively establishing an off position, a spray position or a stream position of the nozzle cap upon rotation of the nozzle cap; the nozzle cap being mounted for rotation on the nose bushing between the three positions and the nozzle cap having engaging structure therein positioned adjacent the blocking member for engaging the blocking member when someone attempts to

Abstract: The trigger operated pumping mechanism for a fluid dispensing device comprises a body. The pumping mechanism comprises a cylinder in the body of the dispensing device, a piston received in the cylinder, a trigger movably mounted to the body and having a front side and a back side, and being coupled to the piston, and a non-metal biasing mechanism for biasing the trigger away from the body to bias the piston coupled to the trigger out of the cylinder. The biasing mechanism includes a separate, non-coiled elongate, generally flat, spring having elongate, opposed flat surfaces and opposite ends and being positioned between the body and the trigger. The trigger back side has a back wall. The spring has one flat surface of one end portion at one end of the spring positioned adjacent the back wall of the trigger and has the other end of the spring positioned rearwardly of the trigger and engaging against the body.

Abstract: The tamper evident cover assembly is used with a sprayer nozzle of a trigger sprayer of the type including a body, a trigger movably mounted to the body for operating a pumping mechanism upon actuation thereof and a sprayer nozzle at the front end of the body. The tamper evident cover assembly comprises a cover for the nozzle, at least one flange extending rearwardly from the cover and having first coupling structure thereon for coupling to the trigger, a frangible connection between the flange and the cover, and, second coupling structure on the trigger for coupling with the first coupling structure upon the flange, whereby actuation of the trigger will cause the cover to be pulled against the nozzle to cause tensioning and breaking of the frangible connection between the flange and the cover and separation of the cover from the sprayer nozzle, such resulting separation being evidence of tampering with the trigger sprayer.

Abstract: The trigger operated fluid dispensing device is adapted to be mounted to a container. The device comprises a body having a top wall portion and front end portion. A nozzle assembly is provided at the front of the body and comprises a nose bushing at the front end of the body and a nozzle cap rotatably mounted to the nose bushing. The nozzle cap has blocking structure that is engageable with structure that prevents rotation of the nozzle cap. A pull-away piece is detachably connected to the top wall portion of the body and has extending structure extending into the area between the nozzle cap and the front end of the body for engaging the blocking structure for preventing relative movement between the nozzle cap and the body.

Abstract: The snap-in trigger (30) for mounting in a trigger sprayer housing (25) comprises a trigger (30) which includes flexible members (80,85) carrying pivotal mounting elements (100,105) which mate with corresponding elements (110,115) in a base, e.g., the sprayer housing (25). The flexible members (80,85) are flexed towards each other during attachment of the trigger (30) to the base, to allow easy mating of the pivotal mounting elements (100,105,110,115). The trigger (30) also includes a flexible locking member (90) which can be pivoted between a first position in which the locking member is spaced apart from the vicinity of the pivotal mounting elements (100,105,110,115), (e.g.

Abstract: A connecting assembly for mounting a fluid dispensing assembly onto a container comprises a cap for receiving and connecting the dispensing device onto the container and a cylindrical neck finish on top of the container for receiving the cap. The cap as well as the cylindrical neck finish have threads for mutual engagement.Furthermore, the cap has an orifice within its top wall for receiving the fluid dispensing device.Ratchet teeth inside the cap and corresponding ratchet teeth outside the cylindrical neck finish engage mutually to prevent the cap from being unlocked accidently. The ratchet teeth inside the cap have a rearwardly extending short back face and a forwardly extending long front face whereby the short back face and the long front face form an acute but almost rectangular angle. The short back face of one ratchet tooth extends of the bottom of a long front face of an adjacent ratchet tooth. The ratchet teeth inside the cap are uniformly distributed.

Abstract: The adjustable nozzle assembly for a trigger sprayer comprises a nose bushing and an integral nozzle cap capable of being screwed upon the bushing. The nozzle cap has a discharge orifice located in its front face and a flange skirt extending from a front wall thereof. A nozzle cap flange skirt is threaded inside the rear portion thereof and an internally contoured or stepped surface is located forwardly of the threads to provide reduced diameter annular surfaces at two locations rearward of an inner wall surface of the cap and forward of the internal threads inside the nozzle cap flange skirt.

Abstract: The nozzle cap, spring valve and body assembly for a trigger sprayer comprises a nozzle cap, a spring valve and a body. The nozzle cap is capable of being screwed upon the nose bushing portion of the body. The nozzle cap has an outlet orifice located in its front face and a sleeve extending rearwardly from a front wall thereof. The sleeve is threaded inside the rear portion thereof and has an internally contoured surface on a short annular formation that is located forwardly of the threads on the back side of the front wall to provide an inner annular surface and an outer annular surface rearward of an inner wall surface of the nozzle cap and forward of the internal threads inside the sleeve. The nose bushing portion of the body has a cavity in which is received the spring valve.

Abstract: The foam nozzle assembly is mounted to a trigger sprayer and comprises an outer barrel portion defining a foam generating chamber into which liquid is ejected in a conical spray from an orifice in a back wall of the foam generating chamber. The cone of the spray subtends a predetermined angle. A perforated wall is located in the outer barrel portion and is spaced forwardly of the back wall having the orifice from which the conical spray is ejected. The perforated wall has ribs and slots therein and the back edges of the portions of the ribs between slots are rounded to provide a surface upon which the conical spray can infringe and be deflected in different directions to mix with air in the foam generating chamber to create foam. The rounded back edge of each of the ribs is defined by a generally circular round having a given radius R. Preferably, the width of each slot is defined as S and the radius R is in a ratio to the slot width S, R:S, of between approximately 1:2 and 1:4 and preferably 1:3.

Abstract: The snap-in trigger for mounting in a trigger sprayer housing comprises a trigger which includes flexible members carrying pivotal mounting elements which mate with corresponding elements in a base, e.g., the sprayer housing. The flexible members are flexed towards each other during attachment of the trigger to the base, to allow easy mating of the pivotal mounting elements. The trigger also includes a flexible locking member which can be pivoted between a first position in which the locking members is spaced apart from the vicinity of the pivotal mounting elements, (e.g., during mating of the pivotal members while the flexible members are flexed together) and a second position in which the locking member is positioned directly between the flexible members in the vicinity of the pivotal mounting elements, preventing the flexible members from moving towards one another, and thus assuring proper mating configuration between the pivotal mounting members.

Abstract: The nozzle assembly comprises a cap and a bushing for mounting to the front of the body of a trigger sprayer in communication with a passage in the trigger sprayer. The cap is mounted to said bushing and is rotatable on the bushing between three positions, they being a stop position, a spray position and a foam position. The nozzle has first passage means and the cap has second passage means. The respective first and second passage means are arranged to communicate with each other in the rotated spray position and in the rotated foam position of the cap. The cap is provided with foam generating means within the cap and in communication with the respective passage means when the cap is rotated to a foam position for generating foam on actuation of a trigger of the trigger sprayer to which the nozzle assembly is mounted.

Abstract: The two piece foamer nozzle assembly comprises a first piece including a body having a front end and a rear end and a second piece releasably connected to the first piece. The first piece has a first cavity in the body thereof opening onto the rear end thereof and being adapted to be received over a nozzle bushing mounted at the front end of the body of a hand manipulatable pumping apparatus. The nozzle bushing is of the type which will eject fluid into the first cavity in a swirl or spiral manner. The first piece further comprises a barrel portion having a second cavity opening onto the front end thereof and an intermediate wall within the first piece between the first and second cavities. The intermediate wall has an orifice extending therethrough with a rear end communicating thereof with the first cavity and a front end communicating with the second cavity. The swirl of liquid is ejected in a spray pattern from the front end of the orifice.