US4324531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide apparatus for a submersible pump
Assignee: E Sarlin Oy AB
•
Filing: 1979-12-28
•
Granted: 1982-04-13
•
Expires: 1999-12-28
Abstract
Abstract Pump means comprising a pump and a motor, combined to constitute a pump unit for submersion in a liquid, and a pump delivery pipe and a vertical guide track both fixedly mounted in a liquid container, such as a sewage weill for instance, the latter guiding the pump unit and enabling it to be lowered into the liquid tank so that the delivery port of the pump will connect with the delivery pipe, and the pump unit having been fitted with a bipartite slide carried on the guide track. The guide track comprises two guides and that the slide comprises two lower projections and two upper projections, and that the slide has been so connected to the delivery aperture of the pump that the lower projections are located below and the upper projections above the delivery port.
Inventors
- 👤 Hannu Sarvanne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:52
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/605; F04D29/606; F04D29/607; F04B; F04B47/00; F04B47/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
246 words
An improved apparatus employing a pump and a motor, these being combined to form a pump unit for submersion in a liquid, said unit being integrally mounted in a liquid tank, a pump delivery pipe and a vertical guide track, the latter guiding the pump unit and enabling it to be lowered into the liquid tank whereby said pump is provided with a delivery port which is connected with the delivery pipe, said pump unit being connected to a bipartite slide resting against the guide track, said slide having a recess therein for receiving a flange formed of said delivery pipe, wherein the improvement comprises, providing the guide track with two guides and said slide is defined by two lower projections and two upper projections between which said guides are disposed, said lower projection being positioned on the same side of said guides as said delivery port and said upper projection being positioned on the opposite side of said guides, whereby, uninhibited vertical travel of said pump with respect to said slide and guides is possible by tilting of said pump unit during lifting or lowering, and said slide being connected to the delivery port of the pump, whereby the lower projections are located below and the upper projections above the delivery port; and said projections during lowering of said pump unit guide said flange of said delivery pipe into said recess of said slide to urge registration between said delivery port and said delivery pipe.
Claim 2
Dependent Claim
246 words
An improved apparatus employing a pump and a motor, these being combined to form a pump unit for submersion in a liquid, said unit being integrally mounted in a liquid tank, a pump delivery pipe and a vertical guide track, the latter guiding the pump unit and enabling it to be lowered into the liquid tank whereby said pump is provided with a delivery port which is connected with the delivery pipe, said pump unit being connected to a bipartite slide resting against the guide track, said slide having a recess therein for receiving a flange formed of said delivery pipe, wherein the improvement comprises, providing the guide track with two guides and said slide is defined by two lower projections and two upper projections between which said guides are disposed, said lower projection being positioned on the same side of said guides as said delivery port and said upper projection being positioned on the opposite side of said guides, whereby, uninhibited vertical travel of said pump with respect to said slide and guides is possible by tilting of said pump unit during lifting or lowering, and said slide being connected to the delivery port of the pump, whereby the lower projections are located below and the upper projections above the delivery port; and said projections during lowering of said pump unit guide said flange of said delivery pipe into said recess of said slide to urge registration between said delivery port and said delivery pipe.
References Cited (Backward Citations)
US3427982A
Cited
US3880553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-12 | 1985-10-12 | 1986-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-12 | 1989-10-12 | 1990-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-12 | 1993-10-12 | 1994-04-13 | $7700.00 | Window Closed / Lapsed |