US3595255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose attachment for cleaning clogged drain pipes
Assignee: Individual
•
Filing: 1970-01-12
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Granted: 1971-07-27
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Expires: 1990-01-12
Abstract
Abstract The disclosed device for attachment to the end of a water hose includes an inflatable tube having its near end connected to the hose end by an adapter, a restricted flow opening in the adapter, a fitting on the far end of the tubing section having an outlet valve opening, a moveable valve member captured within the fitting, and normally slack chain means interconnected between the valve member and the adapter and passing through the interior of the flexible tubing, the action of the device in response to water pressure being such that the tubing first inflates outwardly and then longitudinally until the tightening of the chain means causes the valve member to retract thus permitting water to escape from the outlet valve opening.
Inventors
- 👤 Louis W Mulinex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:24
CPC Classifications
E; E03; E03F; E03F9/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
138 words
A device to aid in the flushing of a clogged drain pipe with a water hose, comprising: a short section of flexible, inflatable tubing; an adapter attached to one end of said tubing for securement to the hose end; a fitting attached to the other end of said tubing, having a valve opening therein; a valve member cooperating with said fitting, and normally closed against said valve opening; and normally slack chain means connected to said valve member and hence through the interior of said tubing to said adapter; the application of water through the hose into said tubing serving to expand said tubing laterally into contact with the pipe wall, and thereafter to expand said tubing longitudinally of the pipe causing said chain means to become taut and thereby retract said valve member from said valve opening.
Claim 2
Independent Claim
138 words
A device to aid in the flushing of a clogged drain pipe with a water hose, comprising: a short section of flexible, inflatable tubing; an adapter attached to one end of said tubing for securement to the hose end; a fitting attached to the other end of said tubing, having a valve opening therein; a valve member cooperating with said fitting, and normally closed against said valve opening; and normally slack chain means connected to said valve member and hence through the interior of said tubing to said adapter; the application of water through the hose into said tubing serving to expand said tubing laterally into contact with the pipe wall, and thereafter to expand said tubing longitudinally of the pipe causing said chain means to become taut and thereby retract said valve member from said valve opening.
Claim 3
Dependent Claim
26 words
A device as claimed in claim 1 wherein said adapter has a restricted inlet opening whose cross-sectional area is less than that of said valve opening.
Claim 4
Dependent Claim
16 words
A device as claimed in claim 2 wherein said valve member is captured within said fixture.
Claim 5
Dependent Claim
16 words
A device as claimed in claim 1 wherein said valve member is captured within said fixture.
Claim 6
Dependent Claim
28 words
A device as claimed in claim 1 wherein the effective outlet opening provided by said valve opening varies as a function of the pressure level within said tubing.
Claim 7
Dependent Claim
77 words
A device as claimed in claim 5 wherein said fitting includes an end cap having a central opening providing said valve opening, said valve member is a stretchable disc having its circumferential edge firmly gripped by said end cap, said valve member has circumferentially spaced openings normally engaging said end cap, and said chain means is connected to the center of said valve member for pulling the openings in said valve member away from said end cap.
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |