US3679178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for setting of rods for deep well installations
Assignee: FRIEDRICH LEUTERT Firma
•
Filing: 1970-02-18
•
Granted: 1972-07-25
•
Expires: 1990-02-18
Abstract
Abstract An apparatus for setting the suspension means of deep well pump installations during operation, which comprises a pumping rod. Two clamping means, including an upper clamping means and a lower clamping means, are operable on the polishing rod during the pumping operation. A suspension rail is operatively connected with the pumping rod, and a hydraulic cylinder with a piston reciprocates therein and is insertable between the upper clamping means and the suspension rail. A receiver container is adapted to feed a liquid medium under low pressure sufficient for lifting of the unloaded pistons and returns the liquid medium from the cylinder caused by the pressure originating from the suspension load by control with a throttle valve.
Inventors
- 👤 Emil Lodynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:23
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18184
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
129 words
An apparatus, comprising a pumping rod for deep well pump installations, two clamping means including an upper clamping means and a lower clamping means, operable on said pumping rod during the pumping operation, suspension means of a deep well pump installation including a suspension rail operatively connected with said pumping rod, a hydraulic cylinder with a piston reciprocating therein and insertable between said upper clamping means and said suspension rail, and a receiver container means including a throttle valve and for feeding a liquid medium under low pressure sufficient for lifting of said piston when unloaded and for returning said liquid medium from said hydraulic cylinder caused by pressure originating from the suspension load by control with said throttle valve, whereby the suspension means can be set during operation.
Claim 2
Independent Claim
129 words
An apparatus, comprising a pumping rod for deep well pump installations, two clamping means including an upper clamping means and a lower clamping means, operable on said pumping rod during the pumping operation, suspension means of a deep well pump installation including a suspension rail operatively connected with said pumping rod, a hydraulic cylinder with a piston reciprocating therein and insertable between said upper clamping means and said suspension rail, and a receiver container means including a throttle valve and for feeding a liquid medium under low pressure sufficient for lifting of said piston when unloaded and for returning said liquid medium from said hydraulic cylinder caused by pressure originating from the suspension load by control with said throttle valve, whereby the suspension means can be set during operation.
Claim 3
Dependent Claim
65 words
The apparatus, as set forth in claim 1, which includes a conduit connecting said hydraulic cylinder with said receiver container means, a stop valve, said throttle valve is a finely controllable valve, and a return valve, said valves operatively disposed in said receiver container means, and said throttle and return valves are disposed parallel relative to each other and in series with said stop valve.
Claim 4
Dependent Claim
26 words
The apparatus, as set forth in claim 1, wherein said receiver container means has a flexible wall and is operatively disposed in a pressure-gas containing container.
Claim 5
Dependent Claim
35 words
The apparatus, as set forth in claim 1, wherein said receiver container means has a flexible wall, and a spring engaging said flexible wall and tending to reduce the liquid volume of said storage container.
Claim 6
Dependent Claim
41 words
The apparatus, as set forth in claim 1, which includes a pumping rod-packing box, a further releasable clamping means, disposed above said pumping rod-packing box and for lifting the latter, and a slotted wedge means slideable out of said pumping rod.
Claim 7
Dependent Claim
198 words
A deep well device, comprising in combination a suspension rail and cables for supporting saId suspension rail, a pumping rod displaceably mounted through said suspension rail, a releasing device releasably insertable onto said pumping rod above said suspension rail, a lower clamp disposed on said pumping rod on said suspension rail and said releasing device resting on said lower clamp, the latter including means for tightening and loosening said lower clamp on said pumping rod, an upper clamp disposed on said pumping rod, and movable to positions thereon spaced from said lower clamping rod for the insertion of said releasing device therebetween, said upper clamp including means for tightening and loosening said upper clamp on said pumping rod, said releasing device including a hydraulic cylinder and a piston operatively mounted therein and a receiver container holding a hydraulic fluid and having a conduit means connected to said hydraulic cylinder, a stop valve disposed in said conduit means adjacent said receiver container and a one way return valve permitting fluid to flow only in a direction from said hydraulic cylinder to said receiver container, and a throttle valve disposed in parallel in said conduit means adjacent said hydraulic cylinder.
Claim 8
Dependent Claim
198 words
A deep well device, comprising in combination a suspension rail and cables for supporting saId suspension rail, a pumping rod displaceably mounted through said suspension rail, a releasing device releasably insertable onto said pumping rod above said suspension rail, a lower clamp disposed on said pumping rod on said suspension rail and said releasing device resting on said lower clamp, the latter including means for tightening and loosening said lower clamp on said pumping rod, an upper clamp disposed on said pumping rod, and movable to positions thereon spaced from said lower clamping rod for the insertion of said releasing device therebetween, said upper clamp including means for tightening and loosening said upper clamp on said pumping rod, said releasing device including a hydraulic cylinder and a piston operatively mounted therein and a receiver container holding a hydraulic fluid and having a conduit means connected to said hydraulic cylinder, a stop valve disposed in said conduit means adjacent said receiver container and a one way return valve permitting fluid to flow only in a direction from said hydraulic cylinder to said receiver container, and a throttle valve disposed in parallel in said conduit means adjacent said hydraulic cylinder.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |