Patent EP0455855A1 successfully refreshed from Google Patents.
Patent US3788771A successfully refreshed from Google Patents.
US3788771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible pump
Assignee: Individual
•
Filing: 1972-07-07
•
Granted: 1974-01-29
•
Expires: 1992-07-07
Abstract
Abstract This invention relates to a submersible pump which combines a pneumatic motor with an elongated cylindrical pump body having a vane type structure therein driven by the motor. The outlet of the pump receives a portion of the supply air bled off at the intake side of the motor and directed to the outlet of the pump to provide a jet action increasing pumping efficiency. The exhaust air from the motor is also directed to the outlet side of the pump to further assist the pump by providing an air pressure source to the water column moved by the pump.
Inventors
- 👤 H Akins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:46
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/04; F04D13/046; F04B; F04B47/00; F04B47/06; F04B47/08; F04D13/06; F04D13/08; F04D13/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
297 words
A submersible pump comprising in combination: a. a pneumatic motor having an elongated cylindrical body with an inlet port at one extremity and an output shaft and outlet ports at the other extremity, b. a pump having a cylindrical body with a drive shaft and and inlet port at one extremity and an outlet port at the other extremity, c. means coupling the cylindrical bodies of the motor and the pump and connecting the output shaft of the motor in driving relationship with the drive shaft of the pump, said cylindrical bodies of said motor and pump being substantially of the same diametrical dimension to provide an elongated submersible pump structure adapted to be inserted into drill holes with the fluid inlet to the pump being positioned above the motor, d. an air supply pipe connecting the inlet port of the motor to provide an air supply to the motor to rotate its output shaft, e. a discharge pipe connected to the outlet port of the pump and adapted to remove fluid pumped by said pump with operation of said motor, and f. a bypass connection including a restriction connecting the air supply pipe to the outlet port of the pump to provide a jet assist to the operation of the pump, the air supply pipe and the dishcarge pipe being mechanically coupled together above the outlet port of the pump and being made of a flexible material to provide the means for raising and lowering the submersible pump into drill holes, g. and additional connection means connecting the outlet ports of the motor to the discharge pipe of the pump to provide an additional jet assist to fluid discharged at the outlet of the pump said additional connection means located external of said pump cylindrical body.
Claim 2
Dependent Claim
297 words
A submersible pump comprising in combination: a. a pneumatic motor having an elongated cylindrical body with an inlet port at one extremity and an output shaft and outlet ports at the other extremity, b. a pump having a cylindrical body with a drive shaft and and inlet port at one extremity and an outlet port at the other extremity, c. means coupling the cylindrical bodies of the motor and the pump and connecting the output shaft of the motor in driving relationship with the drive shaft of the pump, said cylindrical bodies of said motor and pump being substantially of the same diametrical dimension to provide an elongated submersible pump structure adapted to be inserted into drill holes with the fluid inlet to the pump being positioned above the motor, d. an air supply pipe connecting the inlet port of the motor to provide an air supply to the motor to rotate its output shaft, e. a discharge pipe connected to the outlet port of the pump and adapted to remove fluid pumped by said pump with operation of said motor, and f. a bypass connection including a restriction connecting the air supply pipe to the outlet port of the pump to provide a jet assist to the operation of the pump, the air supply pipe and the dishcarge pipe being mechanically coupled together above the outlet port of the pump and being made of a flexible material to provide the means for raising and lowering the submersible pump into drill holes, g. and additional connection means connecting the outlet ports of the motor to the discharge pipe of the pump to provide an additional jet assist to fluid discharged at the outlet of the pump said additional connection means located external of said pump cylindrical body.
Claim 3
Dependent Claim
35 words
The submersible pump of claim 1 in which the restriction is an adjustable valve for proportioning the airflow from the inlet air source between the inlet of the motor and the outlet of the pump.
Claim 4
Dependent Claim
62 words
The submersible pump of claim 2 in which a portion the air supply pipe is positioned adjacent the cylindrical bodies of the pump and motor leading to the inlet port of the motor, said portion being made of a rigid material and clamped to the cylindrical bodies to closely align with the physical outline of the cylindrical bodies of the submersible pump.
Claim 5
Dependent Claim
32 words
The submersible pump of claim 3 in which the bypass connection is made of a rigid material and is clamped external to the body of the cylindrical pump and in contact therewith.
References Cited (Backward Citations)
US876849A
Cited
US1042227A
Cited
AT79671B
Cited
US1365210A
Cited
US1894393A
Cited
US1739000A
Cited
US1818455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |