US3822555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marina protective wave breaker
Assignee: Individual
•
Filing: 1973-03-12
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Granted: 1974-07-09
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Expires: 1993-03-12
Abstract
Abstract A simplified air burst wave breaker for the protection against wave action of Marina installations and the like. The air burst unit comprises a duct in the form of two vertical U portions arranged with their openings toward each other, having a common leg and in which at least the bottom free leg is longer than the common leg. The lower free leg provides a water inlet stem and the upper free leg provides the air burst or burp outlet stem. The U portion open at the bottom an air inlet connection in the upper bend thereof.
Inventors
- 👤 L Strawn
- 👤 V Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:40
CPC Classifications
E; E02; E02B; E02B1/00; E02B1/003
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
A pneumatic breakwater apparatus which comprises a source of compressed air connected to air burpers spacedly supported along the length of the breakwater, each of said burpers comprising an inverted U shaped duct and an upright U shaped duct, said Ushaped ducts having a common leg, said inverted U shaped duct having its free leg of a length longer than the common leg and being the water inlet leg, air injection means connected to and communicating with the curved portion of the inverted U and the source of compressed air, means attached to the breakwater apparatus for maintaining said burpers with the U shaped ducts substantially upright and in a submerged uniform level position.
Claim 2
Dependent Claim
114 words
A pneumatic breakwater apparatus which comprises a source of compressed air connected to air burpers spacedly supported along the length of the breakwater, each of said burpers comprising an inverted U shaped duct and an upright U shaped duct, said Ushaped ducts having a common leg, said inverted U shaped duct having its free leg of a length longer than the common leg and being the water inlet leg, air injection means connected to and communicating with the curved portion of the inverted U and the source of compressed air, means attached to the breakwater apparatus for maintaining said burpers with the U shaped ducts substantially upright and in a submerged uniform level position.
Claim 3
Dependent Claim
45 words
The apparatus of claim 1 in which the compressed air source is a pipeline which is buoyant and exerts a lift force to the breakwater apparatus to maintain its position by tensioning the means for maintaining the burpers upright and in submerged uniform level position.
Claim 4
Dependent Claim
54 words
The pneumatic breakwater apparatus of claim 2 in which anchor lines are affixed at spaced intervals along the breakwater chain and respectively have a length equal to the distance between the in situ position of a respective portion of the pipe line and the ground level beneath the water at the in situ position.
Claim 5
Dependent Claim
30 words
The apparatus of claim 1 in which the inverted and upright U shaped ducts lie in a common plane and in operative position approximating a lazy S with elongated ends.
Claim 6
Dependent Claim
39 words
The apparatus of claim 4 in which the lazy S burper is attached to the compressed air source which is buoyant, and has anchor line attaching means affixed to mean position between the legs of the inverted U duct.
Claim 7
Dependent Claim
27 words
The apparatus of claim 1 in which the inverted U-shaped duct and the upright U-shaped duct are folded about the common leg to approximate a bugle fold.
Claim 8
Dependent Claim
52 words
The apparatus of claim 6 in which the compressed air source threads each of the burpers at the top portion of the inverted U and is connected thereto by air passages of selected size to meter the air into the burpers at a rate to effect a desired air burst repetition rate.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |