Compact portable hand-operated filter for purifying water
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United States of America Patent
Stats
-
Jan 4, 2000
Grant Date -
N/A
app pub date -
Jul 31, 1998
filing date -
Aug 11, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The small filter comprises a housing (1) and a grip (2). A pump (6, 7, 8) can be operated with the grip. Disposed concentrically around the pump are an activated charcoal filter (3) and a ceramic filter (4). The grip is substantially beaker-shaped with convex front wall (11) and cylindrical lateral walls (14). In its rest position, it enclosed the upper end of the housing, such that the small filter is very compact while the grip still has large gripping or seating surfaces for the fingers and the ball of the thumb.
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