US3085715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid dispenser
Assignee: Micro Controls Inc
•
Filing: 1961-01-30
•
Granted: 1963-04-16
•
Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Bradley C Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:16
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/4418; D; D06; D06F; D06F39/00; D06F39/02; D06F39/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A LIQUID DISPENSER FOR WASHERS AND THE LIKE COMPRISING MEANS FORMING A COMPARTMENT, MOVABLE PLUNGER MEANS THEREIN DIVIDING THE COMPARTMENT INTO A WATER-PRESSURE CHAMBER AND A LIQUID-MEASURING CHAMBER, MEANS BIASING THE PLUNGER TO AN INITIAL POSITION, SAID WATER-PRESSURE CHAMBER HAVING A WATER INLET AND A WATER OUTLET, SAID LIQUID-MEASURING CHAMBER HAVING A LIQUID INLET AND A LIQUID OUTLET, A NORMALLY CLOSED BUT OPERABLE INLET VALVE IN SAID WATER INLET, MEANS ADAPTED TO OPEN AND CLOSE SAID WATER INLET VALVE, A THROTTLE VALVE CONNECTING THE WATERPRESSURE CHAMBER WITH SAID WATER OUTLET, AN INLET CHECK VALVE IN SAID LIQUID INLET, AN OUTLET CHECK VALVE IN SAID LIQUID OUTLET, CONNECTING MEANS BETWEEN THE DOWNSTREAM SIDE OF SAID THROTTLE VALVE, SAID PLUNGER HAVING AN OPENING THERETHROUGH, A NORMALLY CLOSED TRANSFER VALVE CONTROLLING SAID OPENING, AND MEANS ADAPTED TO OPEN SAID TRANSFER VALVE IN RESPONSE TO PREDETERMINED MOVEMENT OF THE PLUNGER IN RESPONSE TO WATER PRESSURE WHEN SAID WATER INLET VALVE IS OPENED.
Claim 2
Dependent Claim
158 words
A LIQUID DISPENSER FOR WASHERS AND THE LIKE COMPRISING MEANS FORMING A COMPARTMENT, MOVABLE PLUNGER MEANS THEREIN DIVIDING THE COMPARTMENT INTO A WATER-PRESSURE CHAMBER AND A LIQUID-MEASURING CHAMBER, MEANS BIASING THE PLUNGER TO AN INITIAL POSITION, SAID WATER-PRESSURE CHAMBER HAVING A WATER INLET AND A WATER OUTLET, SAID LIQUID-MEASURING CHAMBER HAVING A LIQUID INLET AND A LIQUID OUTLET, A NORMALLY CLOSED BUT OPERABLE INLET VALVE IN SAID WATER INLET, MEANS ADAPTED TO OPEN AND CLOSE SAID WATER INLET VALVE, A THROTTLE VALVE CONNECTING THE WATERPRESSURE CHAMBER WITH SAID WATER OUTLET, AN INLET CHECK VALVE IN SAID LIQUID INLET, AN OUTLET CHECK VALVE IN SAID LIQUID OUTLET, CONNECTING MEANS BETWEEN THE DOWNSTREAM SIDE OF SAID THROTTLE VALVE, SAID PLUNGER HAVING AN OPENING THERETHROUGH, A NORMALLY CLOSED TRANSFER VALVE CONTROLLING SAID OPENING, AND MEANS ADAPTED TO OPEN SAID TRANSFER VALVE IN RESPONSE TO PREDETERMINED MOVEMENT OF THE PLUNGER IN RESPONSE TO WATER PRESSURE WHEN SAID WATER INLET VALVE IS OPENED.
References Cited (Backward Citations)
US2538111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |