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US3370608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid handling apparatus with pump means having mount and seal
Assignee: Whirlpool Corp
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Filing: 1966-08-12
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Granted: 1968-02-27
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Expires: 1986-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jack R Eisenbrand
- 👤 Albert T Braga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:53
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/4246; A47L15/4214; A47L15/4225; F; F04; F04D; F04D29/00; F04D29/08; F04D29/086; F04D29/60; F04D29/605; F04D29/606; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
LIQUID HANDLING APPARATUS COMPRISING: LIQUID HOLDING MEANS HAVING A SIDE WALL DEFINING A LIQUID HOLDING SPACE AND MEANS DEFINING A BOTTOM OPENING; LIQUID TRANSFER MEANS HAVING A SUBMERSIBLE PUMP DISPOSED IN SAID SPACE AND A MOTOR FOR DRIVING SAID PUMP EXTENDING DOWNWARDLY THROUGH SAID OPENING; AND MEANS FOR SEALING SAID LIQUID TRANSFER MEANS TO SAID SIDE WALL INCLUDING FLANGE MEANS ON SAID LIQUID TRANSFER MEANS HAVING AN OUTER END EXTENDING CLOSELY ADJACENT BUT SPACED FROM SAID SIDE WALL, A RESILIENT SEAL MEMBER HAVING AN INNER GRIPPER PORTION SEALINGLY FITTED ON SAID FLANGE EDGE AND AN OUTER HOLLOW SEALING PORTION COMPRESSED SEALINGLY AGAINST SAID SIDE WALL, SAID SEAL MEMBER HAVING OUTER CIRCUMFERENTIALLY EXTENDING RIBS FRICTIONALLY ENGAGING SAID SIDE WALL AND DEVELOPING THEREBETWEEN RELATIVELY HIGH CONTACT PRESSURE FROM RELATIVELY LOW STRESS FORCES DEVELOPED IN SAID HOLLOW OUTER PORTION OF THE COMPRESSED SEAL MEMBER THEREBY TO MAINTAIN THE SEALING ENGAGEMENT AGAINST VIBRATION FORCES GENERATED BY OPERATION OF THE LIQUID TRANSFER MEANS.
Claim 2
Dependent Claim
158 words
LIQUID HANDLING APPARATUS COMPRISING: LIQUID HOLDING MEANS HAVING A SIDE WALL DEFINING A LIQUID HOLDING SPACE AND MEANS DEFINING A BOTTOM OPENING; LIQUID TRANSFER MEANS HAVING A SUBMERSIBLE PUMP DISPOSED IN SAID SPACE AND A MOTOR FOR DRIVING SAID PUMP EXTENDING DOWNWARDLY THROUGH SAID OPENING; AND MEANS FOR SEALING SAID LIQUID TRANSFER MEANS TO SAID SIDE WALL INCLUDING FLANGE MEANS ON SAID LIQUID TRANSFER MEANS HAVING AN OUTER END EXTENDING CLOSELY ADJACENT BUT SPACED FROM SAID SIDE WALL, A RESILIENT SEAL MEMBER HAVING AN INNER GRIPPER PORTION SEALINGLY FITTED ON SAID FLANGE EDGE AND AN OUTER HOLLOW SEALING PORTION COMPRESSED SEALINGLY AGAINST SAID SIDE WALL, SAID SEAL MEMBER HAVING OUTER CIRCUMFERENTIALLY EXTENDING RIBS FRICTIONALLY ENGAGING SAID SIDE WALL AND DEVELOPING THEREBETWEEN RELATIVELY HIGH CONTACT PRESSURE FROM RELATIVELY LOW STRESS FORCES DEVELOPED IN SAID HOLLOW OUTER PORTION OF THE COMPRESSED SEAL MEMBER THEREBY TO MAINTAIN THE SEALING ENGAGEMENT AGAINST VIBRATION FORCES GENERATED BY OPERATION OF THE LIQUID TRANSFER MEANS.
References Cited (Backward Citations)
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Cited
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US2439469A
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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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |