Patent US3361399A successfully refreshed from Google Patents.
US3361399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bases for mounting pumping units
Assignee: Ingersoll Rand Oilfield Products Co
•
Filing: 1964-08-10
•
Granted: 1968-01-02
•
Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Rue S Hestand
- 👤 Black James Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:24
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A PREFABRICATED BASE FOR A PORTABLE PUMPING UNIT OF THE WALKING BEAM TYPE COMPRISING A SERIES OF AT LEAST THREE LONGITUDINAL BEAMS ALIGNED SUBSTANTIALLY PARALLEL TO EACH OTHER AND EACH CONNECTED TO THE ADJACENT BEAM IN SAID SERIES BY AT LEAST THREE CROSS MEMBERS THEREBY FORMING A RIGID FRAMEWORK OF BEAMS AND CROSS MEMBERS DEFINING A SERIES OF SEPARATE SPACES THEREBETWEEN WHICH ARE LATERALLY ENCLOSED BY SECTIONS OF SAID BEAMS AND CROSS MEMBERS, EACH OF SAID BEAMS AND CROSS MEMBERS HAVING A FLANGE PORTION AT THE LOWER EDGE THEREOF EXTENDING INWARDLY INTO EACH OF SAID LATERALLY ENCLOSED SPACES, AND CAST-INPLACE CONCRETE COMPLETELY BRIDGING ENOUGH OF SAID LATERALLY ENCLOSED SPACES TO ACCOUNT FOR THE MAJOR PORTION OF THE TOTAL CROSS SECTIONAL AREA OF THE ENTIRE BASE, THE LOWER FACE OF SAID CONCRETE SUBSTANTIALLY COINCIDING WITH THE LOWER EDGE OF SAID BEAMS AND CROSS MEMBERS.
Claim 2
Dependent Claim
143 words
A PREFABRICATED BASE FOR A PORTABLE PUMPING UNIT OF THE WALKING BEAM TYPE COMPRISING A SERIES OF AT LEAST THREE LONGITUDINAL BEAMS ALIGNED SUBSTANTIALLY PARALLEL TO EACH OTHER AND EACH CONNECTED TO THE ADJACENT BEAM IN SAID SERIES BY AT LEAST THREE CROSS MEMBERS THEREBY FORMING A RIGID FRAMEWORK OF BEAMS AND CROSS MEMBERS DEFINING A SERIES OF SEPARATE SPACES THEREBETWEEN WHICH ARE LATERALLY ENCLOSED BY SECTIONS OF SAID BEAMS AND CROSS MEMBERS, EACH OF SAID BEAMS AND CROSS MEMBERS HAVING A FLANGE PORTION AT THE LOWER EDGE THEREOF EXTENDING INWARDLY INTO EACH OF SAID LATERALLY ENCLOSED SPACES, AND CAST-INPLACE CONCRETE COMPLETELY BRIDGING ENOUGH OF SAID LATERALLY ENCLOSED SPACES TO ACCOUNT FOR THE MAJOR PORTION OF THE TOTAL CROSS SECTIONAL AREA OF THE ENTIRE BASE, THE LOWER FACE OF SAID CONCRETE SUBSTANTIALLY COINCIDING WITH THE LOWER EDGE OF SAID BEAMS AND CROSS MEMBERS.
References Cited (Backward Citations)
US501914A
Cited
US543545A
Cited
US1856000A
Cited
US2200859A
Cited
US2958778A
Cited
US2998216A
Cited
US3190041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |