Dispensing nozzle with fluid recapture

• US 9,126,820 B2
• Filed: 02/12/2013
• Issued: 09/08/2015
• Est. Priority Date: 02/12/2013
• Status: Active Grant

• Current Assignee: OPW Fueling Components, LLC (Dover Corporation)
• Original Assignee: Opw Fueling Components Incorporated (Dover Corporation)
• Inventors: Gray, John M., Garrison, Timothy M., Lauber, Matthew R., Schubert, Harold M.
• Primary Examiner(s): Nicolas, Frederick C
• Assistant Examiner(s): Zadeh, Bob
• Application Number:
  US13/764,997
• Publication Number:
  US 20140224838A1
• Time in Patent Office: 938 Days
• Field of Search: 222/108, 222/110, 222/111, 222/71, 222/566, 222/571, 222/389, 222/320, 222/335, 222/321.3, 222/109, 141/59, 141/206, 141/311.A, 141/124, 141/392, 137/888, 137/312
• US Class Current: 1/1
• CPC Class Codes: B67D 7/3209 relating to spillage or leakage, e.g. spill containments, leak detection leak detectors for underground fuel dispensing systems G01M3/2892
• CPC Class Codes: B67D 7/46 when liquid in container to be filled reaches a predetermined level
• CPC Class Codes: B67D 7/465 Electrical probes sensing the level of the liquid
• CPC Class Codes: B67D 7/48 by making use of air suction through an opening closed by the rising liquid
• CPC Class Codes: B67D 7/54 with means for preventing escape of liquid or vapour or for recovering escaped liquid or vapour B67D7/44 takes precedence

Abstract

A nozzle including a dispensing path, where the dispensing path is configured such that fluid is dispensable through the dispensing path. The nozzle further includes a suction path, where the suction path is configured such that a negative pressure is created in the suction path when fluid flows through the dispensing path. The nozzle also has a fluid recapture path configured to capture fluid, positioned on an outside of the nozzle, in the recapture path. The fluid recapture path is in fluid communication with the dispensing path and the suction path. In this manner fluid in the fluid recapture path is directable into the dispensing path by the negative pressure in the suction path.

Claims

1. A nozzle comprising:

a dispensing path configured such that fluid is dispensable therethrough;

a suction path configured such that a negative pressure is created therein when said fluid flows through said dispensing path;

a sensing path configured such that a negative pressure is created therein when said fluid flows through said dispensing path, wherein said sensing path is operatively coupled to a shut-off device; and

a fluid recapture path configured to capture therein said fluid positioned on an outside of said nozzle, wherein said fluid recapture path is in fluid communication with said dispensing path and said suction path such that said fluid in said fluid recapture path is directable into said dispensing path by said negative pressure, wherein said nozzle is movable between a dispensing position and a storage position, wherein said fluid recapture path is configured such that when said nozzle is in said storage position said fluid flowing down said outside of said nozzle is receivable into said fluid recapture path, and wherein said fluid recapture path is configured to form a fluid trap such that when said nozzle is moved from said storage position to said dispensing position at least part of any of said fluid in said fluid recapture path is trapped therein and blocked from exiting said fluid recapture path.

2. The nozzle of claim 1 wherein said nozzle includes a spout and said fluid recapture path is generally positioned below said spout when said spout is in said storage position, and wherein said fluid recapture path is generally positioned above said spout when said spout is in said dispensing position.

3. The nozzle of claim 1 wherein said fluid recapture path includes an intake path and a return path, wherein said return path is positioned radially outside said intake path, and wherein said return path is fluidly coupled to said suction path.

4. The nozzle of claim 1 wherein said fluid recapture path is configured such that when said nozzle is in said dispensing position a lower-most portion of said fluid in said fluid recapture path is trapped in said fluid trap.

5. The nozzle of claim 1 wherein said nozzle includes a nozzle body and spout, and wherein a distal end of said dispensing path is positioned at a distal end of said spout, and wherein said fluid recapture path is positioned at a base end of said spout.

6. The nozzle of claim 1 further comprising a poppet valve positioned in said dispensing path such that when fluid of a sufficient pressure flows through said dispensing path said poppet valve is opened such that said fluid creates said negative pressure in said suction path by a venturi effect.

7. The nozzle of claim 6 wherein said poppet valve is configured such that when said fluid of a sufficient pressure flows through said dispensing path and said poppet valve is opened said fluid creates said negative pressure in said sensing path by said venturi effect, wherein the nozzle further includes said shut-off device operatively coupled to said sensing path such that when said sensing path is blocked said shut-off device moves to a closed position to block said nozzle from dispensing said fluid through said dispensing path.

8. The nozzle of claim 7 wherein said shut-off device includes a tube including an opening positioned at or adjacent to an end of said nozzle, wherein said tube at least partially defines or is in fluid communication with said sensing path.

9. The nozzle of claim 1 further comprising a venturi tube positioned in said dispensing path and in fluid communication with said suction path such that when said fluid of sufficient pressure flows through said venturi tube said negative pressure is created in said suction path.

10. The nozzle of claim 1 wherein said fluid recapture path includes a generally circumferentially-extending baffle positioned at an angle relative to radial plane of said nozzle.

11. The nozzle of claim 10 wherein said baffle is configured to guide downwardly-flowing fluid to an opening through which said downwardly-flowing fluid can pass such that once said downwardly-flowing fluid passes through said opening said downwardly-flowing fluid is generally trapped in said fluid recapture path.

12. The nozzle of claim 1 wherein nozzle includes a spout and said dispensing path is positioned in said spout, said nozzle further including a body positioned adjacent to said spout such that said fluid recapture path is positioned between said spout and said body, wherein said body and said spout define a radially-extending gap therebetween defining an intake path in fluid communication with said fluid recapture path.

13. The nozzle of claim 1 wherein said fluid recapture path includes an exit path, and wherein said nozzle includes a generally axially-extending baffle at least partially defining said fluid trap, wherein said fluid trap at least partially axially overlaps with but is radially offset from said exit path when said nozzle is in said dispensing position to trap said fluid therein.

30. The nozzle of claim 1 wherein the nozzle is configured to dispense a petroleum-based fuel.

14. A nozzle comprising:

a nozzle body having a spout and a dispensing path configured to dispense fluid therethrough, the nozzle body further including a sensing path configured such that a negative pressure is created therein when said fluid flows through said dispensing path, wherein said sensing path is operatively coupled to a shut-off device;

a fluid recapture path configured to receive therein said fluid positioned on an outside of said spout, wherein said fluid recapture path is configured to return recaptured fluid to said dispensing path in said nozzle and a suction path configured to have a negative pressure generated therein when said fluid flows through said dispensing path, and wherein said fluid recapture path is in fluid communication with said suction path such that said fluid in said fluid recapture path is directable into said dispensing path by said negative pressure in said suction path.

15. The nozzle of claim 14 wherein said nozzle is configured such that said fluid flowing through said dispensing path is configured to cause said fluid in said fluid recapture path to be evacuated from said fluid recapture path into said dispensing path.

16. The nozzle of claim 14 wherein the nozzle further includes a suction force generator configured to create a negative pressure when said fluid flows through said dispensing path, wherein said suction force generator is operatively coupled to said suction path to cause said fluid in said fluid recapture path to be moved from said fluid recapture path into said dispensing path.

17. The nozzle of claim 14 wherein said fluid recapture path is configured to receive therein said fluid positioned on said outside of said spout at or adjacent to a base portion of said spout.

18. The nozzle of claim 17 wherein said nozzle includes said base portion and an end portion that is angled relative to said base portion.

19. The nozzle of claim 17 wherein said fluid recapture path is configured such that said fluid positioned on said outside of said spout is first introduced into said fluid recapture path at or adjacent to said base portion.

20. The nozzle of claim 17 wherein said fluid recapture path is configured to receive therein fluid positioned on an outside of said spout at said base portion of said spout located opposite a distal end thereof.

21. The nozzle of claim 14 wherein said fluid recapture path is configured to receive therein said fluid positioned on an outermost radial surface of said spout exposed to an ambient environment.

22. The nozzle of claim 14 wherein said nozzle is configured such that said negative pressure in said sensing path is created therein by said fluid flowing through said dispensing path.

23. The nozzle of claim 14 wherein said fluid recapture path is configured to receive therein liquid fluid positioned on an outermost radial surface of said spout exposed to an ambient environment.

24. A nozzle comprising:

a spout;

a dispensing path in said spout and configured such that fluid is dispensable therethrough;

a suction path configured such that a negative pressure is created therein when said fluid flows through said dispensing path;

a sensing path configured such that a negative pressure is created therein when said fluid flows through said dispensing path; and

a body positioned on an outer surface of said spout and defining a fluid recapture path therebetween, said fluid recapture path being configured to receive therein said fluid positioned on an outside of said nozzle, wherein said fluid recapture path is in fluid communication with said dispensing path and said suction path such that said fluid in said fluid recapture path is directable into said dispensing path by said negative pressure, said body and said spout defining a radially-extending gap therebetween defining an intake path that fluidly communicates with said fluid recapture path.

25. The nozzle of claim 24 wherein said intake path extends in a circumferential direction.

26. The nozzle of claim 25 wherein said intake path extends 360 degrees about an entire perimeter of said spout.

27. A nozzle including a spout and comprising:

a dispensing path configured such that fluid is dispensable therethrough;

a suction path configured such that a negative pressure is created therein when said fluid flows through said dispensing path; and

a fluid recapture path configured to receive therein said fluid positioned on an outermost surface of said spout exposed to an ambient environment, wherein said fluid recapture path is in fluid communication with said dispensing path and said suction path such that said fluid in said fluid recapture path is directable into said dispensing path by said negative pressure, at least part of fluid recapture path extending circumferentially around said outermost surface at or adjacent to a base portion of said spout to capture said fluid flowing down said outermost surface.

28. A nozzle comprising:

a dispensing path configured such that fluid is dispensable therethrough;

a suction path configured such that a negative pressure is created therein when said fluid flows through said dispensing path;

a sensing path configured such that a negative pressure is created therein when said fluid flows through said dispensing path, wherein said sensing path is operatively coupled to a shut-off device; and

a fluid recapture path configured to receive therein said fluid positioned on an outside of said nozzle, wherein said fluid recapture path is in fluid communication with said dispensing path and said suction path such that said fluid in said fluid recapture path is directable into said dispensing path by said negative pressure, wherein said fluid recapture path is fluidly isolated from said shut-off device.

29. The nozzle of claim 28 further comprising said shut-off device, wherein said shut-off device is configured to block said nozzle from dispensing said fluid through said dispensing path when fluid is detected at or adjacent to a tip of said nozzle.