US 4,232,688 AGranted

Dental gingival retraction cord dispenser

AssigneePascal Kabushiki Kaisha

InventorReed H. Day

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Abstract

A gingival cord container cap is disclosed featuring a cord dispensing gate mechanism formed by cooperating parts of a pivoted dispensing spout and a cap base in which the spout is socketed. Cord threaded out of the container through a hole in the cap base and through the spout may be withdrawn freely when the spout is swung into alignment with the hole in the base (i.e., the gate-open position). As the spout is pivoted out of such alignment (closing the gate) the cord is pinched and held, so that it may be cut off flush with the aperture of the spout, protectively retaining the remainder in the container. Swinging the spout back into aligned position causes a short segment of the pinched cord to be automatically projected out of the tip of the spout where it can be manually grasped for withdrawing additional cord from the container as needed.

Claims10

Dependent claims

A cord dispensing device comprising:

a first cord dispensing means defining a first cord passage passing completely therethrough, said first cord dispensing means having a curved surface portion;
a second cord dispensing means defining a second cord passage passing completely therethrough, wherein said first and second cord dispensing means are held in a movable relation with respect to each other;
and
a cord threaded through said first and second cord passages;
wherein said second cord dispensing means includes ridge means for pinching said cord against said curved surface portion of the first cord dispensing means when said first and second cord passages are nonaligned, to prevent inadvertant retraction of said cord through said second cord passage and to hold said cord so that it may be conveniently cut after being dispensed from said cord dispensing device;
said ridge means also being for preventing said cord from moving substantially in an axial direction relative to said second cord passage when said first and second cord passages are moved towards alignment to thereby automatically dispense a length of said cord from said first cord passage as said passages are moved towards alignment.

3 more elements

Dependencies are inferred from the claim text.