MULTIDROP ADAPTER

• US 3,563,415 A
• Filed: 06/04/1969
• Issued: 02/16/1971
• Est. Priority Date: 06/04/1969
• Status: Expired due to Term

• Current Assignee: Robert W. Ogle
• Original Assignee: Robert W. Ogle
• Inventors: Ogle, Robert W.
• Application Number:
  US04/830,308
• Time in Patent Office: 622 Days
• US Class Current: 222/145.4
• CPC Class Codes: A61J 1/2041 having removable plugs
• CPC Class Codes: A61J 1/2044 having slits
• CPC Class Codes: A61J 1/2093 Containers having several compartments for products to be mixed
• CPC Class Codes: A61M 5/2429 by telescoping of ampoules or carpules with the syringe body
• CPC Class Codes: A61M 5/2448 comprising means for injection of two or more media, e.g. by mixing

Abstract

A multidrop adapter or dispenser in which a tubular member which may have an enlarged head for containing a powder or substance to be mixed with a liquid in the remainder of the tubular member is telescopically received in a second tubular member which seals one end of a piston which extends into the first tubular member and has a bore which extends out of said second tubular member to expel a drop of liquid when said first tubular member is telescopically moved into said second tubular member and over said piston; and resilient means biasing said first tubular member out of said second tubular member. A plug in said first tubular member is dispelled into said enlarged head upon movement of said first tubular member over said piston when said enlarged head is employed in the invention.

Claims

1. A multidrop dispenser comprising:

a first tubular member having an open end and a closed end;

a second tubular member having an open end and a partially closed end, said first tubular member being telescopically slidable in said second tubular member;

a piston in said first tubular member and having a portion extending into and through the partially closed end of said second tubular member;

a central bore in said piston; and

resilient means having extended and collapsed positions carried by said second tubular member and adapted to engage said first tubular member and biasing said first tubular member towards extended rather than collapsed position of said resilient means.

2. A multidrop dispenser as set forth in claim 1 in which said first tubular member is provided with an enlarged head and a stopper adapted to be forced into said enlarged head upon partial telescopic movement of said first tubular member into said second tubular member.

3. A multidrop dispenser as set forth in claim 1 in which said piston terminates in a nose upon which a bead, a drop, of liquid is formed upon expulsion of such liquid from said first tubular member through said bore by telescopic movement of said first tubular member into said second tubular member and over said piston.

4. A multidrop dispenser as set forth in claim 2 in which said piston terminates in a nose upon which a bead, a drop, of liquid is formed upon expulsion of such liquid from said first tubular member through said bore by telescopic movement of said first tubular member into said second tubular member and over said piston.

5. A multidrop dispenser as set forth in claim 1 in which said resilient means comprises a rubberlike ring member adapted to be compressed upon movement of said first tubular member into said second tubular member.

6. A multidrop dispenser as set forth in claim 2 in which said resilient means comprises a rubberlike ring member adapted to be compressed upon movement of said first tubular member into said second tubular member.

7. A multidrop dispenser as set forth in claim 3 in which said resilient means comprises a rubberlike ring member adapted to be compressed upon movement of said first tubular member into said second tubular member.

8. A multidrop dispenser as set forth in claim 1 in which said resilient means comprises a coil spring seated in said second tubular member and adapted to engage the partially closed end thereof at one end anD the inner end of said first tubular member at the other end thereof.

9. A multidrop dispenser as set forth in claim 2 in which said resilient means comprises a coil spring seated in said second tubular member and adapted to engage the partially closed end thereof at one end and the inner end of said first tubular member at the other end thereof.

10. A multidrop dispenser as set forth in claim 4 in which said resilient means comprises a coil spring seated in said second tubular member and adapted to engage the partially closed end thereof at one end and the inner end of said first tubular member at the other end thereof.