Fluid substance dispenser with easily disengagable snap-locking elements
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 4, 2001
Grant Date -
N/A
app pub date -
Jan 28, 2000
filing date -
Jan 29, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluid substance dispenser includes a dispensing head or pusher to be fitted onto the stem of a pump. The fluid substance dispenser also includes a cap to be fixed onto the mouth of a container containing the substance to be dispensed. On the outer surface of the head and on the inner surface of the cap, spiral ribs are provided which extend in the same direction. The spiral ribs interfere with each other and pass snapwise over each other, when the head is pressed onto the cap. The spiral ribs cooperating 'with each other' to cause the head to withdraw from the cap, when the head is rotated about the cap.
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