US4516286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewer pipeline cleaning apparatus
Assignee: SRECO-FLEXIBLE Inc
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Filing: 1983-06-06
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Granted: 1985-05-14
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Expires: 2003-06-06
Abstract
Abstract A sewer pipeline cleaning apparatus comprised of a hydraulic motor removably mounted on a frame, connected through a fluid connecting adaptor to a high pressure hose. The hydraulic motor and the fluid connecting adaptor are both removably mounted on the frame so that they may be easily removed for repair or replacement. The motor is mounted in a cylindrical ring attached to the frame and secured by locking screws. The fluid connecting adaptor is mounted in a second cylindrical ring attached to the frame, axially aligned with the first and is secured in the ring by a locking screw. The fluid connecting adaptor is provided with rearwardly facing orifices connected to a passageway through the adaptor for applying a thrust to assist in pushing the sewer pipe cleaning apparatus through a pipeline.
Inventors
- 👤 Patrick Crane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:24
CPC Classifications
E; E03; E03F; E03F9/00; B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/043; B08B9/047; B08B9/049; B08B9/051
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
199 words
In a sewer pipeline cleaning apparatus having a hydraulic motor with a drive shaft, an inlet for connecting a high pressure hydraulic fluid to drive a sewer cleaning tool attached to said drive shaft the improvement comprising; a rigid frame formed of first and second cylindrical rings connected by a plurality of stiffening struts; clamp means removably clamping said hydraulic motor in said first cylindrical ring; a fluid connecting adaptor having a fluid inlet and outlet and rearwardly facing orifices connected to a passageway through said fluid connecting adaptor; connecting means connecting a high pressure fluid supply to the inlet of said fluid connecting adaptor, said high pressure fluid providing a thrust through said rearwardly facing orifices; conduit means connecting said outlet from said fluid connecting adaptor to said hydraulic motor inlet; second clamp means removably clamping said fluid connecting adaptor in said second cylindrical ring separately from said hydraulic motor; a plurality of skids bolted to said struts for holding said frame with said hydraulic motor and fluid connecting adaptor spaced from the interior wall of a sewer pipeline being cleansed; whereby the hydraulic motor, fluid connecting adaptor and skids may be separately removed for repair or replacement.
Claim 2
Dependent Claim
199 words
In a sewer pipeline cleaning apparatus having a hydraulic motor with a drive shaft, an inlet for connecting a high pressure hydraulic fluid to drive a sewer cleaning tool attached to said drive shaft the improvement comprising; a rigid frame formed of first and second cylindrical rings connected by a plurality of stiffening struts; clamp means removably clamping said hydraulic motor in said first cylindrical ring; a fluid connecting adaptor having a fluid inlet and outlet and rearwardly facing orifices connected to a passageway through said fluid connecting adaptor; connecting means connecting a high pressure fluid supply to the inlet of said fluid connecting adaptor, said high pressure fluid providing a thrust through said rearwardly facing orifices; conduit means connecting said outlet from said fluid connecting adaptor to said hydraulic motor inlet; second clamp means removably clamping said fluid connecting adaptor in said second cylindrical ring separately from said hydraulic motor; a plurality of skids bolted to said struts for holding said frame with said hydraulic motor and fluid connecting adaptor spaced from the interior wall of a sewer pipeline being cleansed; whereby the hydraulic motor, fluid connecting adaptor and skids may be separately removed for repair or replacement.
Claim 3
Dependent Claim
49 words
The apparatus according to claim 1 in which said first and second cylindrical rings are constructed to have diameters for slidably receiving said hydraulic motor and fluid connecting adaptor; said first and second clamping means comprising at least one locking set screw mounted in each of said cylindrical rings.
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) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |