Patent US3482343A successfully refreshed from Google Patents.
Patent US3089425A successfully refreshed from Google Patents.
US3089425A
Expired / Lapsed
US
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Magnetic pump
Assignee: THOMPSON RAMO WOOIDRIDGE Inc
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Filing: 1961-01-30
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Granted: 1963-05-14
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Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Harold E Sprague
- 👤 Merle E Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:23
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/04; F04B17/00; F04B43/0009; F04B43/0045; H; H02; H02K; H02K49/00; H02K49/10; H02K5/00; H02K5/04; H02K5/12; H02K5/128; Y; Y10; Y10S; Y10S74/00; Y10S74/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A PUMP ASSEMBLY COMPRISING A SHAFT, A ROTATABLE MEMBER MOUNTED ON SAID SHAFT, BEARING MEANS INTERPOSED BETWEEN SAID ROTATABLE MEMBER AND SAID SHAFT TO PERMIT RELATIVE ROTATIVE MOVEMENT THEREBETWEEN, MEANS ON SAID ROTATABLE MEMBER FOR COUPLING SAID ROTATABLE MEMBER TO A DRIVING MECHANISM, A RECIPROCATING MEMBER, A IN CLOSELY SPACED RELATION TO SAID ROTATABLE MEMBER, A PLURALITY OF MAGNETS CARRIED IN ONE FACE OF SAID ROTATABLY MEMBER, A PLUALITY OF MAGNETS CARRIED IN THE FACE OF SAID RECIPROCATING MEMBER WHICH CONFRONTS SAID ONE FACE OF SAID ROTATABLE MEMBER, ALL OF SAID MAGNETS BEING MAGNETIZED SUCH THAT THEY PRESENT A SINGLE POLARITY ALONG THEIR CONFRONTING SURFACES, THE MAGNETS IN SAID ROTATABLE MEMBER AND IN SAID RECIPROCATING MEMBER PRESENTING CONFRONTING SURFACES WHOSE MAGNETIC POLARITY ALTERNATE IN SEQUENCE, A FLEXIBLE DIAPHRAGM COUPLED TO SAID RECIPROCATING MEMBER, A PUMP HOUSING RECEIVING SAID FLEXIBLE DIAPHRAGM FOR RECIPROCATION THEREIN, A FLUID INLET SUPPLYING FLUID TO SAID PUMP HOUSING, AND A FLUID DISCHARGE IN SAID HOUSING FOR DISCHARGING PRESSURIZED FLUID THEREFROM.
Claim 2
Dependent Claim
164 words
A PUMP ASSEMBLY COMPRISING A SHAFT, A ROTATABLE MEMBER MOUNTED ON SAID SHAFT, BEARING MEANS INTERPOSED BETWEEN SAID ROTATABLE MEMBER AND SAID SHAFT TO PERMIT RELATIVE ROTATIVE MOVEMENT THEREBETWEEN, MEANS ON SAID ROTATABLE MEMBER FOR COUPLING SAID ROTATABLE MEMBER TO A DRIVING MECHANISM, A RECIPROCATING MEMBER, A IN CLOSELY SPACED RELATION TO SAID ROTATABLE MEMBER, A PLURALITY OF MAGNETS CARRIED IN ONE FACE OF SAID ROTATABLY MEMBER, A PLUALITY OF MAGNETS CARRIED IN THE FACE OF SAID RECIPROCATING MEMBER WHICH CONFRONTS SAID ONE FACE OF SAID ROTATABLE MEMBER, ALL OF SAID MAGNETS BEING MAGNETIZED SUCH THAT THEY PRESENT A SINGLE POLARITY ALONG THEIR CONFRONTING SURFACES, THE MAGNETS IN SAID ROTATABLE MEMBER AND IN SAID RECIPROCATING MEMBER PRESENTING CONFRONTING SURFACES WHOSE MAGNETIC POLARITY ALTERNATE IN SEQUENCE, A FLEXIBLE DIAPHRAGM COUPLED TO SAID RECIPROCATING MEMBER, A PUMP HOUSING RECEIVING SAID FLEXIBLE DIAPHRAGM FOR RECIPROCATION THEREIN, A FLUID INLET SUPPLYING FLUID TO SAID PUMP HOUSING, AND A FLUID DISCHARGE IN SAID HOUSING FOR DISCHARGING PRESSURIZED FLUID THEREFROM.
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |