|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||210/90 ; 210/130 ; 210/238 ; 210/266|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 32 인용 특허 : 0|
A portable, manually-operated water filtration pump for purifying water. The pump includes an inexpensive, disposable filter cartridge which can be easily changed when the filter elements are no longer effective. The pump uses a lever to actuate a double-acting piston. The lever is collapsible to one side of the pump for compact storage. The filter cartridge is a tubular cylinder having an inner bore forming the pump cylinder. A cylindrical mechanical filter is concentric with and adjacent to the inner bore to filter out particulates larger than 0.3 micr...
A pump for fluid filtration, said pump comprising: a housing; a piston rod slidably mounted on said housing for movement along a first axis of said housing; a piston affixed to a lower end of said piston rod; elongated lever means having one end pivotably attached to an upper portion of said housing and attachable at an intermediate location of said lever means to a cross head on an upper end of said piston rod for slidably moving said piston along said first axis of said housing when said lever means is pivoted; a pump cylinder having an upper end mount...