Tip applicator with Venturi structure

• US 20050047848A1
• Filed: 07/22/2004
• Published: 03/03/2005
• Est. Priority Date: 08/19/2003
• Status: Abandoned Application

• Current Assignee: Taro Pharmaceuticals U.S.A., Inc. (Sun Pharmaceutical Industries Limited)
• Original Assignee: Taro Pharmaceuticals U.S.A., Inc. (Sun Pharmaceutical Industries Limited)
• Inventors: Carraher, Robert
• Application Number:
  US10/897,991
• Publication Number:
  US 20050047848A1
• Time in Patent Office: Days
• US Class Current: 401/266
• CPC Class Codes: A45D 40/02 Casings wherein movement of the lipstick or like solid is a sliding movement A45D40/06 takes precedence
• CPC Class Codes: B05C 17/002 with feed system for supplying material from an external source; Supply controls therefor B05C17/02 takes precedence
• CPC Class Codes: B65D 35/38 Nozzles
• CPC Class Codes: B65D 47/42 with pads or like contents-applying means contents-applying means associated to aerosol container nozzles B65D83/285; brushes combined or associated with containers A46B11/00; swabs for applying media to the human body from an integral supply A61F13/40

Abstract

A tip applicator includes a tip head having a truncated body forming an interior, an applicator end and a receiving end. Further the tip applicator includes a concave applicator surface disposed on the applicator end and having a discharge opening within. The tip head also includes a Venturi structure wherein one end of the Venturi structure opens to the discharge opening and another end opens to the receiving end of the truncated body. The Venturi structure is configured to increase the velocity of a substance being transported therein and decrease the pressure inside the Venturi structure. Thus, the Venturi structure assists in discharging the substance and in the “recapture” of the substance back into a pliable tube.

Claims

1. A tip applicator for a topical substance comprising:

a tip head comprising;

a truncated body forming an interior and having an applicator end and a receiving end;

a concave applicator surface disposed on the applicator end and having a discharge opening within; and

a Venturi structure wherein one end of the Venturi structure opens to the discharge opening and another end of the Venturi structure opens to the receiving end of the truncated body.

2. The tip applicator of claim 1, wherein the concave applicator surface is angled with respect to a horizontal axis.

3. The tip applicator of claim 1, wherein the concave applicator surface is parallel to a horizontal axis.

4. The tip applicator of claim 1, wherein the truncated body is a cylinder.

5. The tip applicator of claim 1, wherein the truncated body and the Venturi structure are integrally formed to eliminate entrainment space within the tip head.

6. The tip applicator of claim 1, further comprising a pad reservoir formed on the concave applicator surface adapted to hold excess topical substance.

7. The tip applicator of claim 1, further comprising a cap engagable and covering the tip head.

8. The tip applicator of claim 7, further comprising a thread disposed on an exterior of the truncated body and the cap being threadable engageable with the tip head.

9. The tip applicator of claim 1, further comprising:

a pliable tube communicating with the receiving end of the truncated body wherein the pliable tube contains the topical substance and compression of the pliable tube discharges the topical substance into the end of the Venturi structure disposed at the receiving end of the truncated body.

10. The tip applicator of claim 9, further comprising a thread disposed on the interior of the truncated body and the pliable tube being threadably engageable with the receiving end.

11. The tip applicator of claim 9 wherein the pliable tube is expandable after compression to draw excess topical substance out of the Venturi structure and into the pliable tube.

12. The tip applicator of claim 7, wherein the cap comprises:

a top wall; and

a side wall vertically depending from the top wall and forming an interior.

13. The tip applicator of claim 12, wherein the cap further comprises:

a plunger disposed on the top wall, interior to the cap, and aligned with the discharge opening, wherein the plunger is insertable into the discharge opening when the cap is engaged with the tip head.

14. The tip applicator of claim 12, wherein the top wall of the cap is aligned with a horizontal axis.

15. The tip applicator of claim 12, wherein the top wall of the cap is aligned with the concave applicator surface.

16. The tip applicator of claim 12, wherein the cap further comprises:

a pin disposed on the top wall, exterior to the cap, having a length, and shaped to enter the discharge opening.

17. The tip applicator of claim 16, wherein the cap further comprises:

a shoulder disposed on the top wall, exterior to the cap and having a length longer than the length of the pin.

18. The tip applicator of claim 1, wherein said concave applicator surface comprises a continuously changing curvilinear shape.

19. The tip applicator of claim 1, further comprising:

an exterior thread disposed on an exterior of the truncated body;

a cap being threadable engageable with the exterior thread;

an interior thread disposed on the interior of the truncated body; and

a pliable tube being threadably engageable with the interior thread, wherein the exterior thread is threaded one of clockwise and counter-clockwise and the interior thread is threaded the same as the exterior thread.

20. The tip applicator of claim 1, further comprising:

an exterior thread disposed on an exterior of the truncated body;

a cap being threadable engageable with the exterior thread;

an interior thread disposed on the interior of the truncated body; and

a pliable tube being threadably engageable with the interior thread, wherein the exterior thread is threaded one of clockwise and counter-clockwise and the interior thread is threaded the opposite of the exterior thread.

21. A tip applicator for a topical substance comprising:

a tip head comprising;

a truncated body forming an interior and having an applicator end and an receiving end;

a concave applicator surface disposed on the applicator end and having a discharge opening within;

a discharge tube comprising;

a discharge end receiving to the discharge opening and having a first width;

an opposite end receiving to the receiving end of the truncated body and having a second width; and

a neck portion disposed between the discharge end and the opposite end having a third width, wherein the third width is smaller than both the first width and the second width.

22. The tip applicator of claim 21, wherein the first width equals the second width.

23. A tip applicator for a topical substance comprising:

a tip head comprising;

a truncated body forming an interior and having an applicator end and a receiving end;

a concave applicator surface disposed on the applicator end and having a discharge opening within and the discharge opening having a perimeter;

a point of inflection disposed on the concave applicator surface at the discharge opening; and

a discharge tube comprising;

a curved wall originating at the point of inflection, spanning the entire perimeter of the discharge opening and depending into the truncated body;

a neck portion depending from the curved wall having a perimeter less than the perimeter of the discharge opening; and

a bottom curved wall depending from the neck portion having a perimeter greater than the neck portion and opening to the receiving end of the truncated body.

24. The tip applicator of claim 23, wherein the curved wall and the bottom curved wall are concave.

25. The tip applicator of claim 23, wherein the curved wall and the bottom curved wall are convex.

26. A tip applicator for a topical substance comprising:

a tip head comprising;

a truncated body forming an interior and having an applicator end and a receiving end;

a concave applicator surface disposed on the applicator end and having a discharge opening within and the discharge opening having a perimeter;

a point of intersection disposed on the concave applicator surface at the discharge opening; and

a discharge tube comprising;

a straight wall originating at the point of intersection, spanning the entire perimeter of the discharge opening and depending into the truncated body;

a neck portion depending from the straight wall having a perimeter less than the perimeter of the discharge opening; and

a bottom straight wall depending from the neck portion having a perimeter greater than the neck portion and opening to the receiving end of the truncated body.