Dispenser
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 28, 2006
Grant Date -
Oct 7, 2004
app pub date -
Jun 20, 2003
filing date -
Apr 1, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dispenser has a seal disk (30), a valve member (40), a plunger guide block (50), a motor (3), which rotates a cam-follower guide block (60), and an end cam (5). The seal disk (30) has communication holes (31), (32) and a sliding surface (33). The valve member has a sliding surface (41), three plunger holes (42) and three plungers (80) inserted in the plunger holes. The cam-follower guide block (60) has three guide holes (62) that receive cam followers, which each have a body (70) with a ball (75) within a recess (71). The ball (75) contacts the cam surface (5A) of the cam (5) which causes the cam followers and plungers (80) to move back and forth parallel to the dispenser axis. The coefficient of friction between the ball and the recess is less than that between the ball and the cam surface (5A).
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