Patent US3251507A successfully refreshed from Google Patents.
US3251507A
Expired / Lapsed
US
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Dispensing nozzle with pre-set shut-off
Assignee: Individual
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Filing: 1964-08-21
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Granted: 1966-05-17
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Expires: 1984-08-21
Abstract
No abstract record available.
Inventors
- 👤 Robert W Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:23
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/44; B67D7/46; B67D7/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
IN AN AUTOMATIC SHUT-OFF FLUID DISPENSING NOZZLE COMPRISING (A) A MAIN VALVE, (B) A HAND LEVER FOR OPENING SAID VALVE, (C) LATCH FOR HOLDING SAID LEVER IN THE OPEN POSITION OF SAID VALVE, (D) A PIVOT FOR SAID HAND LEVER MOVABLE TO A POSITION FOR RELEASING SAID LEVER TO CLOSE THE MAIN VALVE, AND (E) A DIAPHRAGM WITHIN A CHAMBER AND CONNECTED TO A RELEASE PIN FOR MOVING SAID PIVOT TO RELEASE POSITION RESPONSIVE TO DIFFERENTIAL AIR PRESSURE ON OPPOSITE SIDES OF SAID DIAPHRAGM, THE IMPROVEMENT CONSISTING IN A PRESET METERING DEVICE FOR DISPENSING A PREDETERMINED VOLUME OF SAID FLUID FROM A SUPPLY OF THAT FLUID UNDER PRESSURE AND COMPRISING (F) A CYLINDER, (G) A RELEASE PIN EXTENSION WITHIN SAID CYLINDER AND SECURED AT ONE END TO SAID DIAPHRAGM AND RELEASE PIN AND HAVING STOP MEANS AT THE OTHER END, (H) A PISTON MOVABLE WITHIN SAID CYLINDER IN RESPONSE TO FLUID PRESSURE EXERTED AGAINST IT AND MOVABLE RELA-
Claim 2
Dependent Claim
158 words
IN AN AUTOMATIC SHUT-OFF FLUID DISPENSING NOZZLE COMPRISING (A) A MAIN VALVE, (B) A HAND LEVER FOR OPENING SAID VALVE, (C) LATCH FOR HOLDING SAID LEVER IN THE OPEN POSITION OF SAID VALVE, (D) A PIVOT FOR SAID HAND LEVER MOVABLE TO A POSITION FOR RELEASING SAID LEVER TO CLOSE THE MAIN VALVE, AND (E) A DIAPHRAGM WITHIN A CHAMBER AND CONNECTED TO A RELEASE PIN FOR MOVING SAID PIVOT TO RELEASE POSITION RESPONSIVE TO DIFFERENTIAL AIR PRESSURE ON OPPOSITE SIDES OF SAID DIAPHRAGM, THE IMPROVEMENT CONSISTING IN A PRESET METERING DEVICE FOR DISPENSING A PREDETERMINED VOLUME OF SAID FLUID FROM A SUPPLY OF THAT FLUID UNDER PRESSURE AND COMPRISING (F) A CYLINDER, (G) A RELEASE PIN EXTENSION WITHIN SAID CYLINDER AND SECURED AT ONE END TO SAID DIAPHRAGM AND RELEASE PIN AND HAVING STOP MEANS AT THE OTHER END, (H) A PISTON MOVABLE WITHIN SAID CYLINDER IN RESPONSE TO FLUID PRESSURE EXERTED AGAINST IT AND MOVABLE RELA-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |