Child-resistant dispensing nozzle assembly

• US 4,257,561 A
• Filed: 06/05/1979
• Issued: 03/24/1981
• Est. Priority Date: 06/05/1979
• Status: Expired due to Term

• Current Assignee: Specialty Acquisition Corporation
• Original Assignee: Ethyl Products Company
• Inventors: McKinney, James C.
• Primary Examiner(s): SCHACHER, RICHARD
• Application Number:
  US06/045,637
• Time in Patent Office: 658 Days
• Field of Search: 222/153, 222/402.11, 222/407, 215/209, 215/216, 239/581
• US Class Current: 239/581.2
• CPC Class Codes: B05B 1/12 capable of producing different kinds of discharge, e.g. either jet or spray having selectively-effective outlets B05B1/16
• CPC Class Codes: B05B 1/3436 the interface being a plane perpendicular to the outlet axis
• CPC Class Codes: B05B 11/0029 Valves not actuated by pressure B05B11/0032, B05B11/0094 take precedence; automatically opened during actuation of a spray pump B05B11/1053
• CPC Class Codes: B05B 11/0064 Lift valves B05B11/007 takes precedence

Abstract

A child-resistant nozzle connectable to a spray dispensing device. The child-resistant nozzle assembly of the present invention includes a nozzle having a slot in the upstream end for receipt of a lug connected to the pump body. The lug may be depressed by the fingers of the user to selectively engage or disengage the slot in the nozzle. When the lug is engaged in the slot in the nozzle, no liquids can leak or be dispensed from the nozzle.

Claims

1. A child-resistant nozzle assembly for a liquid dispenser comprising:

a. nozzle means having a downstream end and an upstream end and being generally hollow inside, said nozzle means having slot means in the upstream end, said nozzle means having thread means thereon which engage thread means on said body means for connecting said nozzle means to said body means;

b. dispenser body means connectable to said nozzle means having lug means flexibly connected thereto for selective receipt within said slot means to prevent said nozzle means from turning when said lug means is received in said slot means;

c. conduit means in said dispenser body means for supplying liquids to said nozzle means; and

,

d. flexible valve means located between said nozzle means and said conduit means.

2. The child resistant nozzle assembly of claim 1 wherein said nozzle means has detent means on the inside for striking said lug means to stop the rotation of said nozzle means when said lug means is removed from said slot means and said nozzle is rotated.

3. The child-resistant nozzle assembly of claim 1 wherein said nozzle means is adapted to force said valve means to close said conduit means to prevent liquids from escaping from said nozzle means when said lug means is received in said slot means.

4. The child-resistant nozzle assembly of claim 3 wherein said flexible valve means has a generally hemispherical portion which contacts said conduit means and a series of apertures therein through which fluids can flow when said valve is in the open position.

5. The child-resistant nozzle assembly of claim 4 wherein said lug means has one tapered edge.

6. The child-resistant nozzle assembly of claim 5 wherein said slot means has a tapered portion which cooperates with said tapered edge to enable said nozzle means to be threaded onto said body means without manually depressing said button means.

7. The child-resistant nozzle assembly of claim 1 wherein button means for depressing said lug means is connected to said lug means.