Patent US2139431A successfully refreshed from Google Patents.
Patent US3194170A successfully refreshed from Google Patents.
US3194170A
Expired / Lapsed
US
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Diaphragm pump
Assignee: Ingersoll Rand Co
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Filing: 1964-02-25
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Granted: 1965-07-13
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Expires: 1984-02-25
Abstract
No abstract record available.
Inventors
- 👤 Otmar M Ulbing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:47
CPC Classifications
F; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/08; F04B43/10; F04B43/113; F04B43/1133
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A DIAPHRAGM PUMP COMPRISING (A) A HOUSING HAVING AN INLET PORT AT ONE END TO RECEIVE THE FLUID TO BE PUMPED AND AN OUTLET PORT AT THE OPPOSITE END TO DISCHARGE THE PUMPED FLUID, (B) A SUPPORTING CORE DISPOSED WITHIN SAID HOUSING TO DEFINE A WORKING CHAMBER, (C) A TUBULAR FLEXIBLE DIAPHRAGM SUPERIMPOSED OVER THE SUPPORTING CORE AND SECURED AT LONGITUDINALLY SPACED POINTS, (D) INLET PASSAGE MEANS IN SAID SUPPORTING CORE AND SAID HOUSING FOR COMMUNICATING A SOURCE OF ACTUATING FLUID WITH THE INTERIOR OF THE TUBULAR DIAPHRAGM TO EFFECT THE EXPANSION OF THE DIAPHRAGM IN SAID WORKING CHAMBER AND THEREBY FORCE THE FLUID IN THE LATTER THROUGH SAID OUTLET PORT, (E) EXHAUST PASSAGE MEANS IN SAID SUPPORTING CORE AND SAID HOUSING FOR DISCHARGING THE ACTUATING FLUID FROM THE INTERIOR OF THE DIAPHRAGM TO PERMIT THE LATTER TO CONTRACT, AND (F) FLUID-ACTUATED VALVE CONTROL MEANS IN SAID SUPPORTING CORE FOR PROVIDING ALTERNATE FLOW OF ACTUATING FLUID THROUGH SAID INLET PASSAGE MEANS AND SAID EXHAUST PASSAGE MEANS TO PROVIDE ALTERNATE EXPANSION AND CONTRACTION OF SAID DIAPHRAGM.
Claim 2
Dependent Claim
175 words
A DIAPHRAGM PUMP COMPRISING (A) A HOUSING HAVING AN INLET PORT AT ONE END TO RECEIVE THE FLUID TO BE PUMPED AND AN OUTLET PORT AT THE OPPOSITE END TO DISCHARGE THE PUMPED FLUID, (B) A SUPPORTING CORE DISPOSED WITHIN SAID HOUSING TO DEFINE A WORKING CHAMBER, (C) A TUBULAR FLEXIBLE DIAPHRAGM SUPERIMPOSED OVER THE SUPPORTING CORE AND SECURED AT LONGITUDINALLY SPACED POINTS, (D) INLET PASSAGE MEANS IN SAID SUPPORTING CORE AND SAID HOUSING FOR COMMUNICATING A SOURCE OF ACTUATING FLUID WITH THE INTERIOR OF THE TUBULAR DIAPHRAGM TO EFFECT THE EXPANSION OF THE DIAPHRAGM IN SAID WORKING CHAMBER AND THEREBY FORCE THE FLUID IN THE LATTER THROUGH SAID OUTLET PORT, (E) EXHAUST PASSAGE MEANS IN SAID SUPPORTING CORE AND SAID HOUSING FOR DISCHARGING THE ACTUATING FLUID FROM THE INTERIOR OF THE DIAPHRAGM TO PERMIT THE LATTER TO CONTRACT, AND (F) FLUID-ACTUATED VALVE CONTROL MEANS IN SAID SUPPORTING CORE FOR PROVIDING ALTERNATE FLOW OF ACTUATING FLUID THROUGH SAID INLET PASSAGE MEANS AND SAID EXHAUST PASSAGE MEANS TO PROVIDE ALTERNATE EXPANSION AND CONTRACTION OF SAID DIAPHRAGM.
References Cited (Backward Citations)
US2653552A
Cited
US3007416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |