Hand held dispenser for mixing and dispensing two viscous components

• US 4,826,047 A
• Filed: 06/30/1988
• Issued: 05/02/1989
• Est. Priority Date: 06/30/1988
• Status: Expired due to Fees

• Current Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Original Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Inventors: Heflin, Ronald D.
• Primary Examiner(s): Huppert, Michael S.
• Application Number:
  US07/215,423
• Time in Patent Office: 306 Days
• Field of Search: 222/135-136, 222/145, 222/190-191, 222/226, 222/243, 222/246, 222/323, 222/325-327, 222/464, 222/465.1, 222/526, 222/531-532, 222/541, 366/184, 366/194-195, 604/82, 604/89, 604/91
• US Class Current: 222/136
• CPC Class Codes: B01F 31/441 performing a rectilinear reciprocating movement
• CPC Class Codes: B01F 33/5011 portable during use, e.g. hand-held
• CPC Class Codes: B01F 33/50112 of the syringe or cartridge type
• CPC Class Codes: B01F 35/3202 Hand driven
• CPC Class Codes: B01F 35/713 comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges containers or packages per se B65D
• CPC Class Codes: B01F 35/7139 Removing separation walls, plugs which close off the different compartments, e.g. by rotation or axially sliding
• CPC Class Codes: B05C 17/00553 with means allowing the stock of material to consist of at least two different components
• CPC Class Codes: B05C 17/00559 the different components being stored in coaxial chambers
• CPC Class Codes: B05C 17/01 with manually mechanically or electrically actuated piston or the like B05C17/00533 takes precedence
• CPC Class Codes: B65D 81/3255 Containers provided with a piston or a movable bottom, and permitting admixture within the container

Abstract

This invention relates to a hand held, totally integrated dispenser for mixing and dispensing two viscous components. The dispenser includes a hollow plunger within a generally cylindrical outer chamber. The hollow plunger has an open ended container attached to its proximal end. The hollow plunger is used to mix the two viscous components and as a dispensing nozzle.

Claims

1. A hand held dispenser for mixing and dispensing first and second viscous components comprising:

(a) a hollow plunger having a distal and proximal end arranged within a generally cylindrical outer chamber having an inner wall and a distal and proximal end, said distal end of the plunger extending beyond the distal end of said outer chamber and said outer chamber containing the first viscous component;

(b) a plug slideably fitted into the outer chamber and means to prevent said plug from exiting the proximal end of the outer chamber;

(c) closing means for the distal end of said outer chamber, said closing means circumferentially and slideably mounted around said hollow plunger;

(d) a container, for storing said second viscous component, attached to the distal end of the plunger, the container having an attachment end and an opposing open end, the attachment end having an opening in communication with the hollow portion of the plunger;

(e) a seal covering said opening in the attachment end of the container;

(f) a handle attached to the distal end of said plunger; and

(g) a removeable positioning means to position the plunger and container in relation to said outer chamber.

2. A dispenser as in claim 1 in which the material of construction for all component parts of the dispenser is high density polyethylene.

3. A dispenser as in claim 1 in which the proximal end of said hollow plunger is threaded and said opening in the attachment end of said container is complementarily threaded to mate with said threaded end of the hollow plunger.

4. A dispenser as in claim 3 in which the container comprises a substantially rectangular base containing said threaded opening, upturned side walls, and rounded ends conforming tightly but slideably to the inner wall of the outer chamber.

5. A dispenser as in claim 1 in which said positioning means comprises tape adhered to said closing means and said hollow plunger.