IP Library › Granted Patent US 10,625,930

Granted Patent B2

US 10,625,930 · App. 16/073,308 · Granted Apr 21, 2020

Ejection member and aerosol product using same

Inventors: Tomoyuki Takahashi (Ibaraki, JP); Kazuhiro Matsui (Ibaraki, JP); Hidetoshi Miyamoto (Kyoto, JP); Satoshi Mekata (Osaka, JP)

Assignee: DAIZO CORPORATION

B65D83/303 B05B1/14 B65D83/30 B65D83/48 B65D83/68 B65D83/753 B65D83/46

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Quick Facts

Patent No.: US 10,625,930
App. No.: 16/073,308
Granted: Apr 21, 2020
Kind: B2

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Abstract

Provided are an ejection member and an aerosol product using the same capable of obtaining a desired shape of an ejection material by suppressing adhesion of the ejection ejection materials to each other. An ejection member to be connected to an aerosol container filled with a foaming content is provided with an expansion chamber for promoting foaming of the foaming content from the aerosol container and a plurality of nozzles for ejecting the foaming content in the expansion chamber to the outside. The expansion chamber is provided with an introduction port for introducing the foaming content from the aerosol container and a delivery port for delivering the foaming content to the nozzle side. The nozzles each have a slit-shaped ejection port. The communication path that communicates the ejection port and the delivery port has a slit-shaped slit portion. A length of the slit portion in the ejection direction is greater than a slit width of the ejection port.

Claims (66)

1. An ejection member to be connected to an aerosol container filled with a foaming content, the ejection member comprising:

a body comprising a base portion and a nozzle portion, wherein the base portion and the nozzle portion form an expansion chamber, wherein the expansion chamber encourages foaming of the foaming content from the aerosol container,

wherein the base portion comprises a first introduction port that introduces the foaming content from the aerosol container into the expansion chamber,

wherein the nozzle portion comprises 1) an inner surface that faces the expansion chamber and 2) an outer surface that faces the outside,

wherein the nozzle portion comprises a first nozzle and a second nozzle that extend from the inner surface to the outer surface,

wherein the first nozzle and the second nozzle are configured to eject the foaming content introduced into the expansion chamber to outside,

wherein each of the first nozzle and the second nozzle comprises 1) a delivery port, 2) an ejection port, and 3) a communication path that extends between the delivery port and the ejection port,

wherein the delivery port is disposed on the inner surface of the nozzle portion and the ejection port is disposed on the outer surface of the nozzle portion such that the foaming content introduced into the expansion chamber is ejected outside through the delivery port, the communication path, and the ejection port, and

wherein a tip end surface of each of the first nozzle and the second nozzle is inclined with respect to an ejection direction of the foaming content.

2. The ejection member as recited in claim 1 , wherein the inner surface of the nozzle portion comprises a protruding section and a non-protruding section,

wherein the first nozzle extends from the protruding section of the inner surface to the outer surface, and

wherein the second nozzle extends from the non-protruding section of the inner surface to the outer surface.

3. The ejection member as recited in claim 2 , wherein the first nozzle and the second nozzle protrude from the outer surface of the nozzle portion,

wherein a protruding portion of the first nozzle protruding from the outer surface of the nozzle portion has a first height,

wherein a protruding portion of the second nozzle protruding from the outer surface of the nozzle portion has a second height, and

wherein the first height of the first nozzle is lower is second height of the second nozzle.

4. The ejection member as recited in claim 1 , wherein the first nozzle and the second nozzle protrude from the outer surface of the nozzle portion, and

wherein an outer surface of a protruding portion of the first nozzle protruding from the outer surface of the nozzle portion and an outer surface of a protruding portion of the second nozzle protruding from the outer surface of the nozzle portion each has a tapered shape that narrows toward the nozzle portion.

5. The ejection member as recited in claim 1 , wherein the first nozzle and the second nozzle protrude from the outer surface of the nozzle portion, and

wherein a first height of a protruding portion of the first nozzle protruding from the outer surface of the nozzle portion differs from a second height of a protruding portion of the second nozzle protruding from the outer surface of the nozzle portion.

6. The ejection member as recited in claim 5 , wherein the first height of the first nozzle differs from the second height of the second nozzle such that one of the first height and the second height disposed closer to a center of the nozzle portion than another one of the first height and the second height is shorter than the another one of the first height and the second height.

7. The ejection member as recited in claim 1 , wherein the ejection port has a slit-shape that curves in a direction orthogonal to the ejection direction of the foaming content.

8. The ejection member as recited in claim 1 , wherein the first nozzle and the second nozzle are spirally arranged.

9. The ejection member as recited in claim 1 , wherein the first nozzle and the second nozzle are arranged radially adjacent to each other, and

wherein a gap is provided between radially adjacent the first nozzle and the second nozzle.

10. The ejection member as recited in claim 1 , wherein the expansion chamber is partitioned into a first partitioned space and a second partitioned space,

wherein the base portion comprises a second introduction port,

wherein the first partitioned space is provided with the first introduction port and the delivery port of the first nozzle, and

wherein the second partitioned space is provided with the second introduction port and the delivery port of the second nozzle.

11. The ejection member as recited in claim 1 , wherein a central axis of the nozzle portion is shifted from a central axis of a connecting portion of the base portion to connect the body to a stem of the aerosol container.

12. An aerosol product comprising:

the aerosol container filled with the foaming content; and

the ejection member as recited in claim 1 attached to the aerosol container.

13. The ejection member as recited in claim 1 , wherein an area around the introduction port is mortar shaped.

14. An ejection member to be connected to an aerosol container filled with a foaming content, the ejection member comprising:

a body comprising a base portion and an nozzle portion, wherein the base portion and the nozzle portion form an expansion chamber, wherein the expansion chamber encourages foaming of the foaming content from the aerosol container,

wherein the base portion comprises a first introduction port that introduces the foaming content from the aerosol container into the expansion chamber,

wherein the nozzle portion comprises 1) an inner surface that faces the expansion chamber and 2) an outer surface that faces the outside,

wherein the inner surface of the nozzle portion comprises a protruding section and a non-protruding section, and

wherein the nozzle portion comprises 1) a first nozzle that extends from the protruding section of the inner surface to the outer surface and 2) a second nozzle that extends from the non-protruding section of the inner surface to the outer surface,

wherein the first nozzle and the second nozzle are configured to eject the foaming content introduced into the expansion chamber to outside,

wherein each of the first nozzle and the second nozzle comprises 1) a delivery port, 2) an ejection port, and 3) a communication path that extends between the delivery port and the ejection port, and

15. The ejection member as recited in claim 14 , wherein a tip end surface of each of the first nozzle and the second nozzle is inclined with respect to an ejection direction of the foaming content.

16. The ejection member as recited in claim 15 , wherein the first nozzle and the second nozzle protrude from the outer surface of the nozzle portion, and

17. The ejection member as recited in claim 14 , wherein the first nozzle and the second nozzle protrude from the outer surface of the nozzle portion, and

18. The ejection member as recited in claim 17 , wherein the first height of the first nozzle differs from the second height of the second nozzle such that one of the first height and the second height disposed closer to a center of the nozzle portion than another one of the first height and the second height is shorter than the another one of the first height and the second height.

19. The ejection member as recited in claim 14 , wherein the ejection port has a slit-shape that curves in a direction orthogonal to the ejection direction of the foaming content.

20. The ejection member as recited in claim 14 , wherein the first nozzle and the second nozzle are spirally arranged.

21. The ejection member as recited in claim 14 , wherein the first nozzle and the second nozzle are arranged radially adjacent to each other, and

wherein a gap is provided between radially adjacent the first nozzle and the second nozzle.

22. The ejection member as recited in claim 14 , wherein the first nozzle and the second nozzle protrude from the outer surface of the nozzle portion,

wherein a protruding portion of the first nozzle protruding from the outer surface of the nozzle portion has a first height,

wherein a protruding portion of the second nozzle protruding from the outer surface of the nozzle portion has a second height, and

wherein the first height of the first nozzle is lower is second height of the second nozzle.

23. The ejection member as recited in claim 14 , wherein the expansion chamber is partitioned into a first partitioned space and a second partitioned space,

wherein the base portion comprises a second introduction port,

wherein the first partitioned space is provided with the first introduction port and the delivery port of the first nozzle, and

wherein the second partitioned space is provided with the second introduction port and the delivery port of the second nozzle.

24. The ejection member as recited in claim 14 , wherein a central axis of the nozzle portion is shifted from a central axis of a connecting portion of the base portion to connect the body to a stem of the aerosol container.

25. An aerosol product comprising:

the aerosol container filled with the foaming content; and

the ejection member as recited in claim 14 attached to the aerosol container.

26. The ejection member as recited in claim 14 , wherein an area around the introduction port is mortar shaped.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2020

From: TAKAHASHI, TOMOYUKI; MATSUI, KAZUHIRO; MIYAMOTO, HIDETOSHI; MEKATA, SATOSHI

To: DAIZO CORPORATION

Reel/Frame 052100/0791 →

Priority Claims (3)

JP 2016-016537 · Jan 29, 2016 · national

JP 2016-103887 · May 25, 2016 · national

JP 2016-132357 · Jul 4, 2016 · national

Continuity (1)

Related Publication 20190047777A1 · Feb 14, 2019