US3157128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid pump having gas-cushioned bearing means
Assignee: Individual
•
Filing: 1962-04-19
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Granted: 1964-11-17
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Expires: 1982-04-19
Abstract
No abstract record available.
Inventors
- 👤 Hustinx Edmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:58
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/083; Y; Y10; Y10S; Y10S277/00; Y10S277/926; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A LIQUID PUMP HAVING GAS-CUSHIONED BEARING MEANS FOR THE IMPELLER DRIVE ROD THEREOF COMPRISING (A) A PUMP HOUSING ENCLOSING A LIQUID IMPELLER AND HAVING A LIQUID SUPPLY INLET AND PUMPED LIQUID OUTLET PASSAGES, (B) SAID HOUSING HAVING AN OPENING COMMUNICATING WITH THE PUMPED LIQUID OUTLET PASSAGE, (C) A DRIVE ROD CONNECTED TO SAID IMPELLER FOR DRIVE OF THE LATTER AND EXTENDING UPWARDLY THROUGH THE OPENING SUBSTANTIALLY FREE OF CONTACT WITH EDGES OF THE OPENING, THE INTERVENING SPACE PERMITTING FREE FLOW OF PUMPED LIQUID UP THROUGH THE OPENING ABOUT SAID DRIVE ROD, (D) A FLUID-TIGHT CASING ABOVE THE OPENING ENCLOSING A POWERED DRIVING UNIT CONNECTED TO AN UPPER SECTION OF SAID DRIVE ROD, (E) SAID CASING HAVING A BOTTOM PORTION PROVIDED ABOVE SAID HOUSING OPENING WITH ANOTHER OPENING UP THROUGH WHICH AN INTERMEDIATE SECTION OF SAID DRIVE ROD EXTENDS SUBSTANTIALLY FREE OF CONTACT WITH EDGES OF THIS CASING OPENING AND WITH INTERVENING SPACE PERMITTING FREE FLOW OF GAS THERETHROUGH, (F) MEANS DEFINING AN UPWARDLY TAPERED CLOSED GASCONTAINING CHAMBER ARRANGED BETWEEN SAID OPENINGS IN SPACED RELATION ABOUT SAID DRIVE ROD INTERMEDIATE
Claim 2
Dependent Claim
179 words
A LIQUID PUMP HAVING GAS-CUSHIONED BEARING MEANS FOR THE IMPELLER DRIVE ROD THEREOF COMPRISING (A) A PUMP HOUSING ENCLOSING A LIQUID IMPELLER AND HAVING A LIQUID SUPPLY INLET AND PUMPED LIQUID OUTLET PASSAGES, (B) SAID HOUSING HAVING AN OPENING COMMUNICATING WITH THE PUMPED LIQUID OUTLET PASSAGE, (C) A DRIVE ROD CONNECTED TO SAID IMPELLER FOR DRIVE OF THE LATTER AND EXTENDING UPWARDLY THROUGH THE OPENING SUBSTANTIALLY FREE OF CONTACT WITH EDGES OF THE OPENING, THE INTERVENING SPACE PERMITTING FREE FLOW OF PUMPED LIQUID UP THROUGH THE OPENING ABOUT SAID DRIVE ROD, (D) A FLUID-TIGHT CASING ABOVE THE OPENING ENCLOSING A POWERED DRIVING UNIT CONNECTED TO AN UPPER SECTION OF SAID DRIVE ROD, (E) SAID CASING HAVING A BOTTOM PORTION PROVIDED ABOVE SAID HOUSING OPENING WITH ANOTHER OPENING UP THROUGH WHICH AN INTERMEDIATE SECTION OF SAID DRIVE ROD EXTENDS SUBSTANTIALLY FREE OF CONTACT WITH EDGES OF THIS CASING OPENING AND WITH INTERVENING SPACE PERMITTING FREE FLOW OF GAS THERETHROUGH, (F) MEANS DEFINING AN UPWARDLY TAPERED CLOSED GASCONTAINING CHAMBER ARRANGED BETWEEN SAID OPENINGS IN SPACED RELATION ABOUT SAID DRIVE ROD INTERMEDIATE
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |