摘要:
A bifurcated stem foam pump is shown for use in foam dispensers. An air compressor portion (18) of the bifurcated pump is attached to and maintained as a portion of the dispenser housing (12). A portion (16) of the pump for transferring liquid and including a portion (50) for generating foam is sealingly attached to and provided as a portion of a replaceable liquid-containing cartridge (14) in the foam dispenser. The two portions (16, 18) mate and form a completed pump assembly operative for generating foam from the liquid of the cartridge when the cartridge is placed within the dispenser housing and the two pump portions are mated. The air compressor portion (18) includes a collar (24) having an air piston (26) reciprocatingly received therein. The collar (24) is attached to the dispenser housing (12). A collar (38) receiving a hollow stem pump (34, 36) is attached to the liquid cartridge. Actuation of the air piston (26) correspondingly actuates the stem pump (34, 36) such that air and liquid are forced together in the stem pump and through the foam generating member (50).
摘要:
A liquid dispensing portion (16) of the foam pump assembly is attached to a disposable/replaceable liquid cartridge (14) for the dispenser. The air compressor or air pump portion (18) of the foam pump assembly comprises a portion of the dispenser itself and is attached to the dispenser housing (12). Upon replacement of a cartridge, the two portions mate and are operative as a foam pump generator. The liquid portion of the foam is received within a liquid chamber (58) by gravity, and is subsequently driven from that chamber by air from the air compressor (18), which drives both the air and liquid through a foam generating member (72), such as a sponge or mesh. This foam generating member (72) is a part of the liquid dispensing portion (16) of the pump, and is replaced with the cartridge (14).
摘要:
This invention provides a method of inactivating non-enveloped virus particles. The method includes the step of contacting the virus with a virucidally-enhanced alcoholic composition that includes an alcohol, and an enhancer selected from the group consisting of cationic oligomers and polymers, proton donors, chaotropic agents, and mixtures thereof.
摘要:
A bifurcated foam pump assembly for use in foam dispensers. A liquid dispensing portion of the foam pump assembly is attached to and disposable/replaceable with a liquid cartridge for the dispenser. The air compressor or air pump portion of the foam pump assembly comprises a portion of the dispenser itself and is attached to the dispenser housing. Upon replacement of a cartridge, the two portions mate and are operative as a foam pump generator. The liquid portion of the foam pump is received within a liquid chamber by gravity, and is subsequently driven from that chamber by air from the air compressor, which drives both the air and liquid through a foam generating member, such as a sponge or mesh. This foam generating member is a part of the liquid portion of the pump, and is replaced with the cartridge.
摘要:
This invention provides a method of inactivating non-enveloped virus particles. The method includes the step of contacting the virus with a virucidally-enhanced alcoholic composition that includes an alcohol, and an enhancer selected from the group consisting of cationic oligomers and polymers, proton donors, chaotropic agents, and mixtures thereof.
摘要:
A dispenser housing has a closure mechanism that serves to hold the dispenser housing closed. A key either can be carried by an individual to be employed to override the closure mechanism to permit the opening of the dispenser or can be selectively mounted to the dispenser housing to position a release mechanism appropriately to permit the release mechanism to be manipulated to override the closure mechanism. When the key is not mounted to the dispenser, the release mechanism cannot be appropriately manipulated to override the closure mechanism.
摘要:
A dispenser (110) includes a pump (124) that, upon actuation, progresses through a discrete dispense cycle to dispense a discrete dose of product. The dispenser further includes an actuating mechanism (130) serving to actuate the pump (124), and a dispenser controller (140) that controls operation of the actuation mechanism (130) . The discrete dose is less than a desired dose. When the dispenser controller (140) receives a single dispense request, the dispenser controller (140) causes the actuating mechanism (130) to actuate the pump (124) through multiple discrete dispense cycles so as to dispense multiple discrete doses to achieve a dispensing of the desired dose.
摘要:
A stable foam composition includes greater than about 40 weight percent of an alcohol, based upon the total weight of the alcoholic composition, and a foaming surfactant selected from fluorosurfactants, siloxane polymer surfactants, and combinations thereof. When the foaming surfactant includes a fluorosurfactant, the alcoholic composition further includes a polymeric or oligomeric foam stabilizer.