US3586070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic dispensing nozzle
Assignee: Texaco Inc
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Filing: 1969-05-21
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Granted: 1971-06-22
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Expires: 1989-05-21
Abstract
Abstract A liquid dispensing nozzle in which a vacuum signal set up by the rise of liquid about the nozzle controls closure of both the main valve and of a supplemental valve which is actuated to automatically effect the ''''topping-off'''' operation at a relatively restricted rate of feed. The present invention provides a separate vacuum signal transfer valve which so controls the vacuum signal as first to actuate the supplemental valve to effect the ''''topping-off'''' operation and thereafter, on completion of the ''''topping-off'''' operation, to effect closure of the main valve.
Inventors
- 👤 Moses B Daniels Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:14
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/44; B67D7/46; B67D7/48
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
201 words
In an automatic dispensing nozzle for supplying liquid fuel and the like to the filler pipe of a fuel tank, which comprises a supply conduit for said liquid and terminates in a filler spout adapted to be received by said filler pipe of said fuel tank, a main control valve in said conduit, releasable means for holding said main control valve in open position, means responsive to a signal caused by the rise of fluid about the filler spout of said nozzle for effecting the cutoff of said main control valve, and a flow-regulating valve in said conduit in series with said main control valve and normally residing in a primary position permitting full flow of said liquid and shiftable in response to such signal to a secondary flow-restricting position wherein said flow-regulating valve limits flow through said conduit to a predetermined relatively low topping rate, the improvement which comprises signal transfer means normally biased to direct said signal exclusively to effect shifting of said flow-regulating valve from primary to secondary position, said signal transfer means being actuated by movement of the flow-regulating valve into said secondary position to direct said signal to effect the cutoff of said main control valve.
Claim 2
Dependent Claim
201 words
In an automatic dispensing nozzle for supplying liquid fuel and the like to the filler pipe of a fuel tank, which comprises a supply conduit for said liquid and terminates in a filler spout adapted to be received by said filler pipe of said fuel tank, a main control valve in said conduit, releasable means for holding said main control valve in open position, means responsive to a signal caused by the rise of fluid about the filler spout of said nozzle for effecting the cutoff of said main control valve, and a flow-regulating valve in said conduit in series with said main control valve and normally residing in a primary position permitting full flow of said liquid and shiftable in response to such signal to a secondary flow-restricting position wherein said flow-regulating valve limits flow through said conduit to a predetermined relatively low topping rate, the improvement which comprises signal transfer means normally biased to direct said signal exclusively to effect shifting of said flow-regulating valve from primary to secondary position, said signal transfer means being actuated by movement of the flow-regulating valve into said secondary position to direct said signal to effect the cutoff of said main control valve.
Claim 3
Dependent Claim
87 words
A dispensing nozzle as called for in claim 1 wherein said signal comprises a vacuum impulse and said signal transfer means comprises a transfer valve in a signal conduit leading to said main control valve, said signal transfer valve residing normally in closed position in which signal communication with said main control valve is cutoff, and having means impinged by the flow regulating valve in secondary position, to shift said signal transfer valve into open position, in which open signal communication is maintained with said control valve.
Claim 4
Dependent Claim
178 words
In an automatic dispensing nozzle for supplying liquid fuel and the like to a fuel tank, which comprises a supply conduit for the liquid and terminates in a filler spout adapted to be received by the filler pipe of said fuel tank, a main control valve in said conduit, releasable means for holding said main control valve in open position, a fuel flow-regulating valve in said conduit normally residing in a primary position which permits full-flow of said liquid, and shiftable to a secondary flow-restricting position wherein said flow through said conduit is restricted to a predetermined, low, topping rate, the improvement which comprises means creating a vacuum signal in response to the rise of fluid about the filler spout of said nozzle, a signal transfer member normally biased to direct said signal exclusively to control the shift of said flow-regulating valve from said primary to said secondary position, said signal transfer member being actuated by movement of said flow-regulating valve into said secondary position to direct said vacuum signal to effect closure of said main control valve.
Claim 5
Dependent Claim
178 words
In an automatic dispensing nozzle for supplying liquid fuel and the like to a fuel tank, which comprises a supply conduit for the liquid and terminates in a filler spout adapted to be received by the filler pipe of said fuel tank, a main control valve in said conduit, releasable means for holding said main control valve in open position, a fuel flow-regulating valve in said conduit normally residing in a primary position which permits full-flow of said liquid, and shiftable to a secondary flow-restricting position wherein said flow through said conduit is restricted to a predetermined, low, topping rate, the improvement which comprises means creating a vacuum signal in response to the rise of fluid about the filler spout of said nozzle, a signal transfer member normally biased to direct said signal exclusively to control the shift of said flow-regulating valve from said primary to said secondary position, said signal transfer member being actuated by movement of said flow-regulating valve into said secondary position to direct said vacuum signal to effect closure of said main control valve.
Claim 6
Dependent Claim
51 words
An automatic dispensing nozzle as defined in claim 3 comprising, a vacuum signal conduit for controlling the shift of said flow-regulating valve to said second flow-restricting position, an additional vacuum signal coNduit for controlling closure of said main control valve, said signal transfer member being located in said last named conduit.
Claim 7
Dependent Claim
44 words
An automatic dispensing nozzle as defined in claim 4 wherein said signal transfer member is normally biased to close said last named vacuum signal conduit and has a portion contacted by said flow-regulating valve in its secondary position to open said vacuum signal conduit.
Claim 8
Dependent Claim
97 words
An automatic dispensing nozzle as called for in claim 3 wherein conduit means is provided to direct said vacuum signal to control said main control valve and said flow-regulating valve and wherein said signal transfer member comprises a signal cutoff valve located in said conduit means leading to the main control valve, said signal cutoff valve normally biased to closed position, and said signal cutoff valve being provided with actuating means contacted by said flow-regulating valve in secondary position to open said signal cutoff valve and thereby permit said vacuum signal to close the main control valve.
Claim 9
Dependent Claim
35 words
An automatic dispensing nozzle as defined in claim 6 wherein signal cutoff valve is provided with a stem which is actuated by the flow-regulating valve in its secondary position to open said signal cutoff valve.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |