US3072296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping apparatus
Assignee: Bayer Corp
•
Filing: 1958-12-31
•
Granted: 1963-01-08
•
Expires: 1978-12-31
Abstract
No abstract record available.
Inventors
- 👤 Isreeli Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:45
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0289; B01L3/0293; B01F; B01F35/00; B01F35/80; B67; B67D; B67D1/00; B67D1/04; B67D1/045; F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/0072; F04B43/12; F04B43/1253; F04B43/1292; G; G01; G01N; G01N35/00; G01N35/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
PUMPING APPARATUS, COMPRISING FIRST PUMP MEANS HAVING A PLURALITY OF RESILIENTLY FLEXIBLE TUBE MEMBERS FOR PUMPING A PLURALITY OF FLUIDS IN PROPORTIONAL QUANTITIES, ONE OF SAID FLUIDS BEING A LIQUID, SAID FIRST PUMP MEANS HAVING MEANS FOR PROGRESSIVELY COMPRESSING SAID TUBE MEMBERS ALONG THEIR LENGTHS FOR PUMPING SAID FLUIDS RESPECTIVELY, THERETHROUGH, SECOND PUMP MEANS FOR PUMPING A LIQUID, AND FLUID PASSAGE MEANS INTERCONNECTING THE FLEXIBLE TUBE MEMBER FOR THE LIQUID FROM SAID FIRST PUMP MEANS AND SAID SECOND PUMP MEANS FOR OPERATING SAID SECOND PUMP MEANS UNDER THE CONTROL OF SAID FIRST PUMP MEANS SO THAT THE QUANTITY OF THE LIQUID PUMPED BY SAID SECOND PUMP MEANS IS THE SAME AS THE QUANTITY OF SAID LIQUID PUMPED BY SAID FIRST PUMP MEANS WHEREBY THE QUANTITIES OF THE FLUIDS PUMPED BY SAID FIRST AND SECOND PUMP MEANS ARE PROPORTIONAL.
Claim 2
Dependent Claim
138 words
PUMPING APPARATUS, COMPRISING FIRST PUMP MEANS HAVING A PLURALITY OF RESILIENTLY FLEXIBLE TUBE MEMBERS FOR PUMPING A PLURALITY OF FLUIDS IN PROPORTIONAL QUANTITIES, ONE OF SAID FLUIDS BEING A LIQUID, SAID FIRST PUMP MEANS HAVING MEANS FOR PROGRESSIVELY COMPRESSING SAID TUBE MEMBERS ALONG THEIR LENGTHS FOR PUMPING SAID FLUIDS RESPECTIVELY, THERETHROUGH, SECOND PUMP MEANS FOR PUMPING A LIQUID, AND FLUID PASSAGE MEANS INTERCONNECTING THE FLEXIBLE TUBE MEMBER FOR THE LIQUID FROM SAID FIRST PUMP MEANS AND SAID SECOND PUMP MEANS FOR OPERATING SAID SECOND PUMP MEANS UNDER THE CONTROL OF SAID FIRST PUMP MEANS SO THAT THE QUANTITY OF THE LIQUID PUMPED BY SAID SECOND PUMP MEANS IS THE SAME AS THE QUANTITY OF SAID LIQUID PUMPED BY SAID FIRST PUMP MEANS WHEREBY THE QUANTITIES OF THE FLUIDS PUMPED BY SAID FIRST AND SECOND PUMP MEANS ARE PROPORTIONAL.
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |