Patent US3272133A successfully refreshed from Google Patents.
US3272133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proportioning apparatus
Assignee: Individual
•
Filing: 1963-04-22
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Granted: 1966-09-13
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Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 Marcel F Vignerot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:23
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
IN A PROPORTIONAL PUMPING UNIT FOR DELIVERING THE COMPONENTS OF A RESIN IN PREDETERMINED PROPORTIONS, A PAIR OF PISTON AND CYLINDER PUMPS HAVING SUPPLY CONTAINERS ASSOCIATED RESPECTIVELY THEREWITH BY CHECK VALVED INLET CONNECTIONS AND HAVING CHECK VALVED OUTLET CONNECTIONS, PARALLEL PISTON RODS CONNECTED TO THE RESPECTIVE PUMPS FOR OPERATING THE SAME, AN OPERATING LEVER DISPOSED BETWEEN SAID PISTON RODS AND PIVOTED ON AN AXIS PERPENDICULAR TO THE AXES OF THE PISTON RODS AND PARALLEL TO AND SPACED SUBSTANTIALLY FROM THE PLANE OF SAID PISTON RODS, CROSS HEADS FIXED ON THE RESPECTIVE PISTON RODS AND HAVING LONGITUDINAL GUIDE GROOVES THEREIN FACING OPPOSITE SIDES OF SAID LEVER, SLIDE BLOCKS RECIPROCABLE IN THE RESPECTIVE GUIDE GROOVES OF SAID CROSS HEADS, AND A PIVOT PIN EXTENDING FROM ONE SIDE OF SAID LEVER AND CONNECTING ONE OF SLIDE BLOCKS TO SAID LEVER, AN ADJUSTING HEAD DISPOSED ON THE OTHER SIDE OF SAID LEVER AND HAVING A PIVOT PIN CONNECTING THE ADJUSTING HEAD TO THE OTHER ONE OF SAID SLIDE BLOCKS, AND MEANS FOR SECURING SAID ADJUSTING HEAD IN DIFFERENT POSITIONS ALONG SAID LEVER.
Claim 2
Dependent Claim
178 words
IN A PROPORTIONAL PUMPING UNIT FOR DELIVERING THE COMPONENTS OF A RESIN IN PREDETERMINED PROPORTIONS, A PAIR OF PISTON AND CYLINDER PUMPS HAVING SUPPLY CONTAINERS ASSOCIATED RESPECTIVELY THEREWITH BY CHECK VALVED INLET CONNECTIONS AND HAVING CHECK VALVED OUTLET CONNECTIONS, PARALLEL PISTON RODS CONNECTED TO THE RESPECTIVE PUMPS FOR OPERATING THE SAME, AN OPERATING LEVER DISPOSED BETWEEN SAID PISTON RODS AND PIVOTED ON AN AXIS PERPENDICULAR TO THE AXES OF THE PISTON RODS AND PARALLEL TO AND SPACED SUBSTANTIALLY FROM THE PLANE OF SAID PISTON RODS, CROSS HEADS FIXED ON THE RESPECTIVE PISTON RODS AND HAVING LONGITUDINAL GUIDE GROOVES THEREIN FACING OPPOSITE SIDES OF SAID LEVER, SLIDE BLOCKS RECIPROCABLE IN THE RESPECTIVE GUIDE GROOVES OF SAID CROSS HEADS, AND A PIVOT PIN EXTENDING FROM ONE SIDE OF SAID LEVER AND CONNECTING ONE OF SLIDE BLOCKS TO SAID LEVER, AN ADJUSTING HEAD DISPOSED ON THE OTHER SIDE OF SAID LEVER AND HAVING A PIVOT PIN CONNECTING THE ADJUSTING HEAD TO THE OTHER ONE OF SAID SLIDE BLOCKS, AND MEANS FOR SECURING SAID ADJUSTING HEAD IN DIFFERENT POSITIONS ALONG SAID LEVER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |