US3304126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus and methods
Assignee: Gorman Rupp Co
•
Filing: 1965-02-15
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Granted: 1967-02-14
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Expires: 1985-02-15
Abstract
No abstract record available.
Inventors
- 👤 Warren E Rupp
- 👤 Frank T Sakraida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:02
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
PUMPING APPARATUS COMPRISING: (A) HOUSING MEANS, (B) FIRST AND SECOND PUMPING MEANS IN SAID HOUSING MEANS, (C) SAID PUMPING MEANS COOPERATING WITH SAID HOUSING MEANS TO DEFINE FIRST AND SECOND PUMPING CHAMBERS, (D) SAID PUMPING CHAMBERS HAVING INTAKE AND DISCHARGE OPENINGS, (E) A FIRST FLUID SYSTEM OPERATIVELY CONNECTED TO SAID FIRST PUMPING MEANS FOR APPLYING FLUID PRESSURE THERETO AND CAUSING MATERIAL TO BE PUMPED FROM SAID FIRST PUMPING CHAMBER, (F) A SECOND FLUID SYSTEM OPERATIVELY CONNECTED TO SAID SECOND PUMPING MEANS FOR APPLYING FLUID PRESSURE THERETO AND CAUSING MATERIAL TO BE PUMPED FROM SAID SECOND PUMPING CHAMBER, AND,
Claim 2
Dependent Claim
98 words
PUMPING APPARATUS COMPRISING: (A) HOUSING MEANS, (B) FIRST AND SECOND PUMPING MEANS IN SAID HOUSING MEANS, (C) SAID PUMPING MEANS COOPERATING WITH SAID HOUSING MEANS TO DEFINE FIRST AND SECOND PUMPING CHAMBERS, (D) SAID PUMPING CHAMBERS HAVING INTAKE AND DISCHARGE OPENINGS, (E) A FIRST FLUID SYSTEM OPERATIVELY CONNECTED TO SAID FIRST PUMPING MEANS FOR APPLYING FLUID PRESSURE THERETO AND CAUSING MATERIAL TO BE PUMPED FROM SAID FIRST PUMPING CHAMBER, (F) A SECOND FLUID SYSTEM OPERATIVELY CONNECTED TO SAID SECOND PUMPING MEANS FOR APPLYING FLUID PRESSURE THERETO AND CAUSING MATERIAL TO BE PUMPED FROM SAID SECOND PUMPING CHAMBER, AND,
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |