Liquid dosage dispensers
First Claim
1. A liquid dosage dispenser comprising a bottle for containing a liquid, said bottle having an open neck, a dispenser apparatus removably supported on said neck having a housing extending into said bottle and a plunger device extending into said housing for longitudinal movement therein, said housing having an opening through which liquid in said bottle can be drawn into said housing, one of said housing and plunger device including stop means of predetermined configuration for stopping, longitudinal movement of said plunger device and the other of said housing and plunger device including follower means for contacting said stop means, said plunger device being rotatable with respect to said housing to align said follower means with a desired portion of said stop means, said follower means and stop means, when aligned, allowing said plunger device to be moved longitudinally along said housing until said follower means contacts said stop means to draw a predetermined amount of liquid through said opening into said housing, said dispenser apparatus being removable from said bottle to permit said predetermined amount of drawn liquid to be dispensed through said opening, said stop means including a plurality of keyways of different lengths and said follower means including a projection for riding in said keyways when selectively aligned therewith.
1 Assignment
0 Petitions
Accused Products
Abstract
A liquid dosage dispenser includes a bottle and a dispenser apparatus supported on the bottle having a housing extending into the bottle and a plunger device extending into the housing for longitudinal movement therein. The housing includes an opening through which liquid in the bottle can be drawn into the housing, with one of the housing and plunger device including a stop system of predetermined configuration and the other of the housing and plunger device including a follower for contacting the stop system. The plunger is rotatable with respect to the housing to align the follower with a desired portion of the stop system, with the follower and stop system, when aligned, allowing the plunger to be moved longitudinally along the housing until the follower contacts the stop system to draw a predetermined amount of liquid through the opening into the housing. The dispenser is removable from the bottle to allow the predetermined amount of liquid to be dispensed through the opening.
25 Citations
19 Claims
- 1. A liquid dosage dispenser comprising a bottle for containing a liquid, said bottle having an open neck, a dispenser apparatus removably supported on said neck having a housing extending into said bottle and a plunger device extending into said housing for longitudinal movement therein, said housing having an opening through which liquid in said bottle can be drawn into said housing, one of said housing and plunger device including stop means of predetermined configuration for stopping, longitudinal movement of said plunger device and the other of said housing and plunger device including follower means for contacting said stop means, said plunger device being rotatable with respect to said housing to align said follower means with a desired portion of said stop means, said follower means and stop means, when aligned, allowing said plunger device to be moved longitudinally along said housing until said follower means contacts said stop means to draw a predetermined amount of liquid through said opening into said housing, said dispenser apparatus being removable from said bottle to permit said predetermined amount of drawn liquid to be dispensed through said opening, said stop means including a plurality of keyways of different lengths and said follower means including a projection for riding in said keyways when selectively aligned therewith.
- 10. A liquid dosage dispenser comprising a bottle for containing a liquid, said bottle having an open neck, a dispenser apparatus supported on said neck having a housing extending into said bottle and a plunger device extending into said housing for longitudinal movement therein, said housing having an opening through which liquid in said bottle can be drawn into said housing, said plunger device including a through passageway, one of said housing and plunger device including compliance keyway means of predetermined configuration for directing longitudinal movement of said plunger device and the other of said housing and plunger device including follower means for riding along said compliance keyway means to allow said plunger device to be moved longitudinally along said housing to draw a predetermined amount of liquid through said opening into said housing, said plunger device being movable in a reverse longitudinal direction to expel the liquid in said housing through said passageway and out of said dispenser apparatus.
Specification