DISPENSING NOZZLE ARRANGEMENT PROVIDING ELECTRICAL LOCKOUT

• US 3,815,784 A
• Filed: 08/14/1972
• Issued: 06/11/1974
• Est. Priority Date: 08/14/1972
• Status: Expired due to Term

• Current Assignee: William B. Hansel
• Original Assignee: William B. Hansel
• Inventors: Hansel, William B.
• Primary Examiner(s): Reeves, Robert B.
• Assistant Examiner(s): Rolla, Joseph J.
• Application Number:
  US05/280,612
• Time in Patent Office: 666 Days
• Field of Search: 141/351,352,104,100,98,192,193,198,99 222/26,27,74,75,52,63,144.5,566
• US Class Current: 222/26
• CPC Class Codes: B67D 7/743 electrically or electro-mechanically operated

Abstract

Nozzle arrangement which positively prevents the dispensing of unspecified fuels (e.g., leaded fuels) into '"'"''"'"''"'"''"'"'specification'"'"''"'"''"'"''"'"' automobiles which require '"'"''"'"''"'"''"'"'specification fuel'"'"''"'"''"'"''"'"' (e.g., nonleaded fuel) exclusively, while permitting the dispensing of unspecified fuels into other, '"'"''"'"''"'"''"'"'non-specification'"'"''"'"''"'"''"'"' automobiles. Separate pumping means are utilized for unspecified fuel and for specification fuel. The special fuel filler inlets of specification automobiles are modified (made special) to prevent use therein of a dispensing nozzle spout of standard configuration, a non-standard spout being employed for such automobiles. This non-standard spout incorporates an electrical lockout arrangement which functions to automatically render the unspecified-fuel pumping means inoperative whenever the nonstandard spout is being utilized for dispensing into a special fuel filler inlet. Under other dispensing conditions, the unspecified-fuel pumping means is operative.

Claims

1. In a motor fuel dispensing apparatus capable of dispensing specification fuel into the fuel tanks of specification automobiles requiring such fuel exclusively and having their fuel filler inlets constructed and arranged to prevent the insertion thereinto of dispensing nozzle spouts of standard configuration, said apparatus being also capable of a dispensing unspecified fuels into the fuel tanks of other, non-specification automobiles:

a dispensing nozzle with a non-standard spout capable of insertion into the fuel filler inlets of both specification and non-specification automobiles, separate controllable means for pumping specification and unspecified fuels, respectively, through said nozzle spout, and means associated with said nozzle spout for causing the unspecifiedfuel puming means to be rendered inoperative whenever said nonstandard spout is inserted into the fuel filler inlet of a specification automobile.

2. Combination according to claim 1, wherein each of said pumping means includes an electric pump driving motor, and wherein said spout-associated means includes electrical circuitry for controlling the energization of the motor for the unspecified-fuel pumping means.

3. Combination according to claim 1, wherein each of said pumping means includes a pump and a solenoid valve coupled to the discharge of the corresponding pump, and wherein said spout-associated means includes electrical circuitry for controlling the energization of the solenoid valve for the unspecified-fuel pumping means.

4. Combination according to claim 1, wherein said spout-associated means includes a normally closed proximity switch mounted in said spout and magnetically operated to open position in response to the insertion of said non-standard spout into the fuel filler inlet of a specification automobile, the opening of said switch serving to render the unspecified-fuel pumping means inoperative.

5. Combination according to claim 1, wherein said spout-associated means includes a normally open switch mounted in said non-standard spout, said switch when open causing the unspecified-fuel pumping means to be rendered inoperative.

6. Combination defined in claim 5, including also a removable adapter for said non-standard spout operable to convert said spout to a standard configuration, and means carried by said adapter for operating said switch to closed position upon the placing of said adapter in operative position on said non-standard spout, thereby to render operative the unspecified fuel pumping means.

7. Combination according to claim 6, wherein said noramlly-open switch comprises a magnetic reed switch, and wherein the switch-operating means carried by said adapter comprises a permanent magnet.

8. Combination according to claim 6, wherein the standard spout has a larger outer diameter than the said nonstandard spout, and wherein the removable adapter comprises a member adapted to be placed over the non-standard spout to convert it to a standard configuration.

9. Combination defined in claim 8, wherein said member comprises a sleeve of non-magnetic material adapted to be slipped over the non-standard spout and carrying switch-operating means comprising a permanent magnet.

10. Combination defined in claim 8, wherein said member comprises a shroud of non-magnetic material pivotally mounted on the nozzle body and adapted to be swung over the non-standard spout, said shroud carrying switch-operating means comprising a permanent magnet.