US3839983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bilge pump having snubbing action
Assignee: Individual
•
Filing: 1973-02-05
•
Granted: 1974-10-08
•
Expires: 1993-02-05
Abstract
Abstract A bilge pump for a boat operated by wave action upon the boat also provides snubbing action to the mooring lines and comprises a pump chamber of elastic, flexible material connected in the mooring line which expands and contracts as the mooring line is tensed and relaxed due to wave action upon the boat. The pumping chamber has inlet and outlet check valves therein. A line runs from the bilge of the boat to the inlet valve of the pump chamber. Expansion and contraction of the pumping chamber, together with action of the check valves, draws water from the bilge of the boat and discharges it overboard.
Inventors
- 👤 Ausland R Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:34
CPC Classifications
D; D04; D04C; D04C1/00; D04C1/06; D04C1/12; B; B63; B63B; B63B13/00; F; F04; F04B; F04B43/00; F04B43/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
238 words
A combined mooring line, snubber and pumping device for the bilge of a boat utilizing wave motion upon the boat to pump out the bilge of the boat, comprising: a mooring line connected between the boat and a mooring station with at least a portion of the mooring line incorporating a length of tubular, braided rope having a hollow interior and which contracts in diameter on application of tension thereto, an open-ended, elongated, tubular section of elastic tubing having a wall thickness relative to its diameter sufficient to prevent collapse thereof during pumping action inserted in the hollow interior of the braided rope, a flexible inlet check valve disposed in one of the open ends of the elongated section of elastic tubing for connection to an intake hose, and a flexible outlet check valve in the other end of the elongated section of elastic tubing for connection to a discharge hose, the cross-sectional area of the elastic material decreased by squeezing action of the braided rope surrounding the elastic tubing on application of tension thereto and, on release of tension, returning to substantially its original crosssectional area because of its elastic memory, the alternate squeezIng and release action due to wave action upon a boat sucking water into the section of elastic tubing on release of tension on the mooring line and discharging the water held by the elastic tubing on application of tension to the mooring line.
Claim 2
Dependent Claim
238 words
A combined mooring line, snubber and pumping device for the bilge of a boat utilizing wave motion upon the boat to pump out the bilge of the boat, comprising: a mooring line connected between the boat and a mooring station with at least a portion of the mooring line incorporating a length of tubular, braided rope having a hollow interior and which contracts in diameter on application of tension thereto, an open-ended, elongated, tubular section of elastic tubing having a wall thickness relative to its diameter sufficient to prevent collapse thereof during pumping action inserted in the hollow interior of the braided rope, a flexible inlet check valve disposed in one of the open ends of the elongated section of elastic tubing for connection to an intake hose, and a flexible outlet check valve in the other end of the elongated section of elastic tubing for connection to a discharge hose, the cross-sectional area of the elastic material decreased by squeezing action of the braided rope surrounding the elastic tubing on application of tension thereto and, on release of tension, returning to substantially its original crosssectional area because of its elastic memory, the alternate squeezIng and release action due to wave action upon a boat sucking water into the section of elastic tubing on release of tension on the mooring line and discharging the water held by the elastic tubing on application of tension to the mooring line.
Claim 3
Dependent Claim
57 words
The pump of claim 1 wherein the elastic tubing is a material of 40 to 60 durometer having a wall thickness ranging from 1/16 inch to 1/8 inch and an internal diameter ranging from 1/4 inch to 3/4 inch, and the braided rope is a material having a low coefficient of friction, such as polyethylene or nylon.
Claim 4
Dependent Claim
15 words
The pumping device of claim 1 wherein the mooring line is a braided polyethylene rope.
Claim 5
Dependent Claim
32 words
The pumping device of claim 1 including a second section of mooring line spliced around the pumping device to act as a mooring line in the event the pump device is severed.
Claim 6
Dependent Claim
38 words
The pumping device of claim 1 including filter means on the free end of the intake hose preventing suction of material into the hose which would plug or inhibit action of the check valves in the pumping device.
Claim 7
Dependent Claim
24 words
The pumping device of claim 1 including a check valve in the intake hose to eliminate the possibility of water feed-back into the bilge.
References Cited (Backward Citations)
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US2772817A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |