Mechanism to prevent actuator of a pump dispenser to prematurely open and leak

• US 9,908,132 B2
• Filed: 04/17/2015
• Issued: 03/06/2018
• Est. Priority Date: 04/17/2015
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Dalisay, Huberto Miel, Lamb, Kenneth Eugene, Morrissey, Robert Keith, Wurzelbacher, William Peter, Tianda, Lin
• Primary Examiner(s): Nicolas, Frederick C
• Application Number:
  US14/689,569
• Publication Number:
  US 20160303600A1
• Time in Patent Office: 1,054 Days
• CPC Class Codes: B05B 11/1047 the pump being preassembled as an independent unit before being mounted on the container
• CPC Class Codes: B05B 11/1052 Actuation means locking means therefor B05B11/1059; the dispensing stroke being affected by the stored energy of a spring B05B11/109
• CPC Class Codes: B05B 11/1059 Means for locking a pump or its actuation means in a fixed position B05B11/1091 takes precedence
• CPC Class Codes: B05B 11/106 in a retracted position, e.g. in an end-of-dispensing-stroke position

Abstract

The present invention is directed to a dispensing pump for dispensing material from a container having a chaplet comprising a rotating ring and a stationary ring, wherein the rotating ring is connected to an actuator and the stationary ring is connected to an actuator assembly; a rotating ring affixed to the actuator wherein the rotating ring comprises a cut-out arc having an angle between about 45 degrees to about 345 degrees, wherein the remaining portion of the rotating ring is an uncut portion; a stationary ring attached to the actuator assembly a key protruding from the stationary ring which fits along the cut-out arc of the rotating ring; wherein the actuator rotates with the rotating ring until the uncut portion of the rotating ring is stopped by the key wherein the actuator starts to unscrew from the rotating ring until the actuator is released.

Claims

1. A dispensing pump for dispensing material from a container comprising:

a) a chaplet comprising a rotating ring and a stationary ring, wherein the rotating ring is connected to an actuator and the stationary ring is connected to an actuator assembly;

b) the rotating ring affixed to the actuator wherein the rotating ring comprises a cut-out arc having an angle between about 45 degrees to about 345 degrees, wherein the remaining portion of the rotating ring is an uncut portion;

c) a key protruding from the stationary ring which fits along the cut-out arc of the rotating ring;

wherein the actuator rotates with the rotating ring until the uncut portion of the rotating ring is stopped by the key wherein the actuator starts to unscrew from the rotating ring until the actuator is released.

2. A dispensing pump according to claim 1 wherein the cut-out arc of the rotating ring has an angle between sized from about 180 degrees to about 345 degrees.

3. A dispensing pump according to claim 1 wherein the cut-out arc of the rotating ring has an angle between sized from about 45 degrees to about 180 degrees.

4. A dispensing pump according to claim 1 wherein the rotating ring is inside the stationary ring.

5. A dispensing pump according to claim 1 wherein the rotating ring is outside the stationary ring.

6. A dispensing pump according to claim 1 wherein the rotating ring and/or stationary ring comprise polypropylenes, polyethylene, high impact polypropylene, random polypropylene copolymer and mixtures thereof.

7. A dispensing pump according to claim 1 wherein a surface finish of the rotating ring and/or stationary ring is an unpolished, non-mirror finish.

8. A dispensing pump according to claim 1 the surface finish of the rotating ring and/or stationary ring is a mirror finish.

9. A dispensing pump according to claim 1 wherein the surface finish of an outside surface of the rotating ring and an inside surface of the stationary ring is a mirror finish.

10. A dispensing pump according to claim 1 wherein the surface finish of an inside surface of the rotating ring and an outside surface of the actuator stem is an unpolished, non-mirror finish.