Dual spout dispensing nozzle

• US 4,351,375 A
• Filed: 05/27/1980
• Issued: 09/28/1982
• Est. Priority Date: 05/27/1980
• Status: Expired due to Term

• Current Assignee: Delaware Capital Formation Incorporated (Dover Corporation)
• Original Assignee: Dover Corporation
• Inventors: Polson, Charles L.
• Primary Examiner(s): Schmidt, Frederick R.
• Application Number:
  US06/153,884
• Time in Patent Office: 854 Days
• Field of Search: 137/68 R, 137/797, 141/1, 141/59, 141/98, 141/198, 141/206-229, 141/285, 141/290, 141/301, 141/302, 141/392
• US Class Current: 141/98
• 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
• CPC Class Codes: Y10T 137/8811 Frangible

Abstract

A fluid dispensing nozzle adapted for dispensing gasoline has dual rigid spouts. The inner spout defines a flow passage for a fluid such as gasoline and the area between the two spouts defines an interspoutal passageway for vapor recovery.

Claims

1. A dispensing nozzle, comprising:

(a) a nozzle body having an inlet and an outlet with a flow passage therebetween;

(b) an adapter securely fitted in the outlet of the nozzle body;

(c) a pair of rigid concentric spouts extending from the nozzle body outlet including an inner spout disposed with an outer spout, an end portion of the inner spout being sealingly received by the adapter for selective fluid communication with the nozzle body inlet;

(d) a locating element attached to both the adapter and the outer spout, the locating element being operative to prevent relative rotational movement between the outer spout and the adapter; and

(e) retaining means releasably secured to the nozzle body for securing the outer spout relative to the nozzle body.

2. A dispensing nozzle as recited in claim 1 including a vapor seal circumferentially fitted on the outer periphery of the outer spout, the retaining means being axially movable about the periphery of the outer spout to sealingly engage the vapor seal.

3. A dispensing nozzle as recited in claim 1 wherein the locating element includes a plurality of axially extending arms which maintains an axial separation between the spout adapter and the outer spout.

4. A dispensing nozzle as recited in claim 1 wherein the inner and outer spouts define an interspoutal passageway between the inner surface of the outer spout and the outer surface of the inner spout and wherein the inner and outer spouts are sealingly connected at a location distal to the nozzle body, the outer spout having a plurality of perforations intermediate the sealing connection providing vapor communication between the exterior of the outer spout and the interspoutal passageway.

5. A dispensing nozzle as recited in claim 4 wherein the outer spout extends beyond the terminus of the inner spout distal to the nozzle body.

6. A dispensing nozzle as recited in claim 5 wherein the locating element is circumferentially fitted about the outer spout with radially inwardly extending tabs, the outer spout having notches receiving the tabs.

7. A dispensing nozzle as recited in claim 1 wherein the retaining means is threadably and internally received by the nozzle body outlet for axial movement along the periphery of the outer spout.

8. A dispensing nozzle as recited in claim 1 wherein the retaining means has a location of weakening at which any breakage is preferred.

9. A dispensing nozzle as recited in claim 8 wherein the location of weakening is a shear groove about the periphery of the retaining means.

10. A vapor recovery dispensing nozzle for use in dispensing gasoline comprising:

(a) a nozzle body having an inlet and an outlet and a liquid flow passage therebetween;

(b) a manually operated valve in the liquid flow passage intermediate of the inlet and outlet for controlling liquid flow through the nozzle;

(c) a spout adapter securely fitted within and extending from the body outlet;

(d) an inner spout sealingly received by the spout adapter in selective fluid communication with the liquid passageway;

(e) an outer spout radially spaced from the inner spout to define an interspoutal passageway therebetween, the inner and outer spouts being rigidly and sealingly connected at a location distal to the body, the outer spout having perforations which permit vapor communication between the exterior of the spout and the interspoutal passageway;

(f) a locating element engaging both the outer spout and spout adapter, the locating element having means for preventing relative rotational movement between the outer spout and the spout adapter;

(g) a vapor seal fitted about the outer periphery of the outer spout; and

(h) a retaining element threadably received in the body outlet for axial advancement along the outer periphery of the outer spout for sealing engagement with the vapor seal.

11. A dispensing nozzle comprising:

(a) a nozzle body having an inlet and an outlet with a flow passage therebetween;

(b) a fluid dispensing spout extending from the nozzle body outlet in selective fluid communication with the flow passage;

(c) an outer spout generally concentric to the fluid dispensing spout, said outer spout and said dispensing spout defining an interspoutal passageway being in vapor communication with the exterior of the outerspout and in selective vapor communication with a portion of the nozzle body; and

(d) sealing means for selectively blocking vapor communication between the interspoutal passageway and the portion of nozzle body, said sealing means being responsive to fluid flow through the flow passage to permit vapor flow whenever fluid is flowing through the flow passage and to block vapor communication whenever fluid flow through the flow passage is terminated.

12. A dispensing nozzle as recited in claim 11 wherein said sealing means is biased to a normally closed position in which it blocks vapor communication between the interspoutal passageway and the portion of the nozzle body, said sealing means being movable to an open position in response to fluid flow through the flow passage.

13. A dispensing nozzle as recited in claim 11 further including a piston member axially movable within a cylinder in response to fluid flow through the fluid passage, linkage means between said piston member and said sealing means for moving the sealing means in response to movement of said piston member.

14. A dispensing nozzle as recited in claim 13 wherein said linkage means is provited at a location between said piston and said sealing means.

15. A dispensing nozzle as recited in claim 13 wherein said cylinder is in open fluid communication with said flow passage.

16. A dispensing nozzle as recited in claim 13 wherein said linkage means includes a yoke with two extending arm sections, each of said arms being bifurcated.

17. A vapor recovery dispensing nozzle for use in dispensing gasoline, comprising:

(a) a nozzle body having an inlet and an outlet and a liquid flow passage therebetween;

(b) a manually operated valve in the liquid flow passage intermediate of the inlet and outlet for controlling fluid flow through the nozzle;

(c) a fluid dispensing spout extending from the nozzle body in fluid communication with the nozzle body outlet;

(d) an outer spout generally concentric to the fluid dispensing spout, said outer spout and said dispensing spout defining an interspoutal vapor passageway between the spouts, said interspoutal passageway being in vapor communication with the exterior of the outer spout and in selective vapor communication with a portion of the nozzle body; and

(e) sealing means for selectively blocking and establishing vapor communication between said interspoutal passageway and said portion of said nozzle body in response to the position of said manually operated valve.

18. A vapor recovery dispensing nozzle as recited in claim 17 further including an actuator responsive to the position of said manually operated valve for controlling the position of said sealing means.

19. A vapor recovery dispensing nozzle as recited in claim 18 further including linkage means between said actuator and the sealing means for converting movement of said actuator into movement of said sealing means.

20. A vapor recovery dispensing nozzle, comprising:

(a) a nozzle body having an inlet and an outlet with a flow passage therebetween;

(b) an adapter securely fitted in the outlet of the nozzle body;

(c) a pair of rigid concentric spouts extending from the nozzle body outlet including an interspout disposed within an outer spout;

an end portion of the outer spout being sealingly received by the adaptor for selective fluid communication with the nozzle body inlet;

(d) retaining means releasably secured to the nozzle body for securing both the outer spout and the inner spout relative to the nozzle body, said retaining means having a preferred spot of weakening which facilitates breakage at a preferred location to permit separation of both the inner and outer spouts from the nozzle body whenever the nozzle is subjected to predetermined stresses.

21. A vapor recovery dispensing nozzle as recited in claim 20 further including an anchoring spring disposed about the periphery of said outer spout, a pair of pins extending from said nozzle body, said spring having an end portion wrapped around one of said pins, a push nut fitted about said other pin and engaging said end portion of said anchoring spring.