A fluid dispenser; in one non-limiting embodiment the fluid dispenser of the invention comprises: a housing, a hand pump, at least one bag, and a stem stabilizer. The housing defines an interior chamber and a housing wall. The housing wall defines at least one air-vent hole for ingress of air. The h
A fluid dispenser; in one non-limiting embodiment the fluid dispenser of the invention comprises: a housing, a hand pump, at least one bag, and a stem stabilizer. The housing defines an interior chamber and a housing wall. The housing wall defines at least one air-vent hole for ingress of air. The hand pump has a stem which extends downward into the interior chamber of the housing. The at least one bag is located in the interior chamber and is sealed except for being connected to the at least one air-vent hole. Negative pressure is created in the interior chamber when fluid is extracted from the interior chamber via the hand pump, this causes air to flow into the at least one air bag and thus the fluid inside the interior chamber is kept separate from the air entering the at least one air bag.
대표청구항▼
1. A fluid dispenser, comprising: a housing, said housing defining an interior chamber,said housing defining a housing wall, said housing wall defining an air-vent hole for ingress of air;a hand pump having a stem, said stem being in communication with said interior chamber of said housing;a bag, sa
1. A fluid dispenser, comprising: a housing, said housing defining an interior chamber,said housing defining a housing wall, said housing wall defining an air-vent hole for ingress of air;a hand pump having a stem, said stem being in communication with said interior chamber of said housing;a bag, said bag being located in said interior chamber of said housing,said bag being sealed except for a connection between said bag and said air-vent hole such that said bag can receive air via said air-vent hole, wherein during normal operation said hand pump creates negative pressure in said interior chamber which causes air to ingress into said air bag via said air-vent hole; anda first stem stabilizer for stabilizing said stem such that said stem is prevented from being forced sideways when said air bag fills with air, and wherein the first stem stabilizer is substantially planar and of a substantially similar cross sectional shape as the interior chamber of said housing. 2. The fluid dispenser according to claim 1, wherein said first stem stabilizer is of substantially planar construction with a hole disposed in said first stem stabilizer for accommodating the width of said stem of said hand pump. 3. The fluid dispenser according to claim 1, wherein said housing defines a base end, and wherein the fluid dispenser further comprises: a second stem stabilizer that extends upward from the base end of the housing, and wherein said second stem stabilizer defines a circular member which in turn defines a through-hole, and further wherein said through-hole has a sufficient bore to secure said stem. 4. The fluid dispenser according to claim 1, wherein the first stem stabilizer is adapted to slidingly and sealingly engage an interior wall portion of the interior chamber such that the fluid remains below the stem stabilizer. 5. A fluid dispenser, comprising a housing, said housing defining an interior chamber, said housing defining a housing wall, said housing wall defining first and second air-vent holes for ingress of air;a hand pump having a stem, said stem being in communication with said interior chamber of said housing;a first bag and a second bag, said first and second bags being located in said interior chamber of said housing, wherein said first and second bags are connected respectively with first and second air-vent holes; anda stem stabilizer, said stem stabilizer being of substantially planar construction with a hole disposed in said stem stabilizer for accommodating said stem of said hand pump, and wherein the stem stabilizer is of a substantially similar shape as the interior chamber of said housing. 6. The fluid dispenser according to claim 5, wherein the stem stabilizer is adapted to slidingly and sealingly engage an interior wall portion of the interior chamber such that the fluid remains below the stem stabilizer.
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이 특허에 인용된 특허 (35)
Foster, Gordon Brian; Van Vonno, Nyanza Alberta, Apparatus and system for dispensing liquids.
Park Yeong C. (Bergen County NJ) Corba Robert E. (Racine County WI), Assembly for dispensing fluids from multiple containers, while simultaneously and instantaneously venting the fluid cont.
Spahni Milton D. (Okeana OH) Kock Ronald W. (Wyoming OH) Yeazell Charles G. (Cincinnati OH) Johnson Robert C. (Okeana OH), Bag-in-squeeze-bottle fluid dispenser with unsealed fluid passage.
McCann Gerald P. (7000 Macapa Dr. Los Angeles CA 90068) Verley Donald J. (43015 Lesina Dr. Lake Elizabeth CA 93532), Beverage dispenser for home or office.
Crosnier Daniel (14 rue Jacques Lanty 76550 Offranville FRX) Dulery Jean-Marie (53 avenue Pierre Semard 94210 La Varenne FRX), Dosing device which can be placed on various containers.
Cha Jungkeun (c/o George Spector ; 3615 Woolworth Bldg. ; 233 Broadway New York NY 10007) Spector George (c/o Jungkeun Cha ; 3615 Woolworth Bldg. ; 233 Broadway New York NY 10007), Siphon dispensing bottle.
Fipp Beverly A. (7728 Hidden Valley Ct. La Jolla CA 92037) Fipp Bernard E. (7728 Hidden Valley Ct. La Jolla CA 92037) Haller John L. (7249 Carrizo Dr. La Jolla CA 92037), Stopper apparatus for content contamination prevention.
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